Science.gov

Sample records for angiography personnel protection

  1. National Synchrotron Light Source angiography personnel protection interlock

    SciTech Connect

    Gmuer, N.; Larson, R.; Thomlinson, W.

    1992-06-01

    This document has been written to describe the safety system operation at the NSLS X17B2 beamline Synchrotron Medical Research Facility (SMERF). The angiography exposure process involves scanning a patient up and down through dual fixed-position x-ray beams; exposure is controlled by opening and closing a fast-acting Safety Shutter mechanism at precise times in relation to the up and down motion of the scan chair. The fast-acting Safety Shutter mechanism is the primary radiation-stopping element protecting the patient while the chair is at rest and while it is reversing directions during the scan. Its fail-safe and fast operation is essential for the safety of the patient. Operation of X17B2 as a human subject angiography station necessitates the implementation of a personnel protection interlock system that, in conjunction with the Safety Shutters: permits safe access to the patient exposure area while the synchrotron radiation beam is illuminating the upstream dual energy monochromator; allows a patient to be imaged by the monochromatized beam under the supervision of a Responsible Physician, with scan chair motion and precision shutter actuation regulated by an angiography control computer, while providing a suitable number of safeguards against accidental radiation exposure; has different modes of operation to accommodate equipment set-up, test, and calibration; and patient exposure; and ensures the quick extinction of the beam if a potentially unsafe condition is detected. The interlock system which performs these safety functions is called the Angiography Personnel Protection Interlock (APPI). The APPI Document is organized such that the level of detail changes from a general overview to detailed engineering drawings of the hardware system.

  2. National Synchrotron Light Source angiography personnel protection interlock

    SciTech Connect

    Gmuer, N.; Larson, R.; Thomlinson, W.

    1992-06-01

    This document has been written to describe the safety system operation at the NSLS X17B2 beamline Synchrotron Medical Research Facility (SMERF). The angiography exposure process involves scanning a patient up and down through dual fixed-position x-ray beams; exposure is controlled by opening and closing a fast-acting Safety Shutter mechanism at precise times in relation to the up and down motion of the scan chair. The fast-acting Safety Shutter mechanism is the primary radiation-stopping element protecting the patient while the chair is at rest and while it is reversing directions during the scan. Its fail-safe and fast operation is essential for the safety of the patient. Operation of X17B2 as a human subject angiography station necessitates the implementation of a personnel protection interlock system that, in conjunction with the Safety Shutters: permits safe access to the patient exposure area while the synchrotron radiation beam is illuminating the upstream dual energy monochromator; allows a patient to be imaged by the monochromatized beam under the supervision of a Responsible Physician, with scan chair motion and precision shutter actuation regulated by an angiography control computer, while providing a suitable number of safeguards against accidental radiation exposure; has different modes of operation to accommodate equipment set-up, test, and calibration; and patient exposure; and ensures the quick extinction of the beam if a potentially unsafe condition is detected. The interlock system which performs these safety functions is called the Angiography Personnel Protection Interlock (APPI). The APPI Document is organized such that the level of detail changes from a general overview to detailed engineering drawings of the hardware system.

  3. NATIONAL SYNCHROTRON LIGHT SOURCE MEDICAL PERSONNEL PROTECTION INTERLOCK

    SciTech Connect

    BUDA,S.; GMUR,N.F.; LARSON,R.; THOMLINSON,W.

    1998-11-03

    This report is founded on reports written in April 1987 by Robert Hettel for angiography operations at the Stanford Synchrotron Research Laboratory (SSRL) and a subsequent report covering angiography operations at the National Synchrotron Light Source (NSLS); BNL Informal Report 47681, June 1992. The latter report has now been rewritten in order to accurately reflect the design and installation of a new medical safety system at the NSLS X17B2 beamline Synchrotron Medical Research Facility (SMERF). Known originally as the Angiography Personnel Protection Interlock (APPI), this system has been modified to incorporate other medical imaging research programs on the same beamline and thus the name has been changed to the more generic Medical Personnel Protection Interlock (MPPI). This report will deal almost exclusively with the human imaging (angiography, bronchography, mammography) aspects of the safety system, but will briefly explain the modular aspects of the system allowing other medical experiments to be incorporated.

  4. 10 CFR 1016.25 - Protective personnel.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Protective personnel. 1016.25 Section 1016.25 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) SAFEGUARDING OF RESTRICTED DATA Physical Security § 1016.25 Protective personnel. Whenever protective personnel are required by § 1016.23, such protective personnel...

  5. Medical personnel and patient dosimetry during coronary angiography and intervention

    NASA Astrophysics Data System (ADS)

    Efstathopoulos, Efstathios P.; Makrygiannis, Stamatis S.; Kottou, Sofia; Karvouni, Evangelia; Giazitzoglou, Eleftherios; Korovesis, Socrates; Tzanalaridou, Efthalia; Raptou, Panagiota D.; Katritsis, Demosthenes G.

    2003-09-01

    Percutaneous coronary interventions are associated with increased radiation exposure compared to most radiological examinations. This prospective study aimed at (1) measuring entrance doses for all in-room personnel, (2) performing an assessment of patient effective dose and intracoronary doses, (3) investigating the contribution of each projection to kerma-area product (KAP) and irradiation time, (4) comparing results with established DRL values in this clinical setting and (5) estimating the risk for fatal cancer to patients and operators. Measurements were performed during 40 consecutive procedures of coronary angiography (CA), half of which were followed by ad hoc coronary angioplasty (PTCA). KAP measurements were used for patients and thermoluminescent dosimetry for the in-room personnel. The mean KAP value per procedure for CA was 29 +/- 9 Gy cm2. Thirty four per cent of KAP was due to fluoroscopy, whereas the remainder (66%) was due to digital cine. Accordingly, the mean KAP value per PTCA procedure was 75 +/- 30 Gy cm2, and contribution of fluoroscopy is 57%. Effective dose per year was estimated to be 0.04-0.05 mSv y-1 for the primary operator, and 0.03-0.04 mSv y-1 for those assisting. Corresponding measurements for radiographer and nurse were below detectable level, implying minimal radiation hazards for them. Regarding radiation exposure, coronary intervention is considered a quite safe procedure for both patients and personnel in laboratories with modern equipment and experienced operators as long as standard safety precautions are considered. Exposure optimization though should be constantly sought through continuous review of procedures.

  6. National Synchrotron Light Source medical personnel protection interlock

    SciTech Connect

    Buda, S.; Gmuer, N.F.; Larson, R.; Thomlinson, W.

    1998-11-01

    This report is founded on reports written in April 1987 by Robert Hettel for angiography operations at the Stanford Synchrotron Research Laboratory (SSRL) and a subsequent report covering angiography operations at the National Synchrotron Light Source (NSLS); BNL Informal Report 47681, June 1992. The latter report has now been rewritten in order to accurately reflect the design and installation of a new medical safety system at the NSLS X17B2 beamline Synchrotron Medical Research Facility (SMERF). Known originally as the Angiography Personnel Protection Interlock (APPI), this system has been modified to incorporate other medical imaging research programs on the same beamline and thus the name has been changed to the more generic Medical Personnel Protection Interlock (MPPI). This report will deal almost exclusively with the human imaging (angiography, bronchography, mammography) aspects of the safety system, but will briefly explain the modular aspects of the system allowing other medical experiments to be incorporated. This MPPI report is organized such that the level of detail changes from a general overview to detailed engineering drawings of the hardware system. The general overview is presented in Section 1.0, MPPI Operational Mode and Procedures. The various MPPI components are described in detail in Section 2.0. Section 3.0 presents some simplified logic diagrams and accompanying text. This section was written to allow readers to become familiar with the logic system without having to work through the entire set of detailed engineering drawings listed in the Appendix. Detailed logic specifications are given in Section 4.0. The Appendix also contains copies of the current MPPI interlock test procedures for Setup and Patient Modes.

  7. Protective Lotions for Military Personnel.

    DTIC Science & Technology

    Topically applied cosmetically acceptable lotions were developed that offered substantial protection to test animals against Schistosome cercariae...penetration. Long term dermal adhesion and environmental resistance of polymeric films were evaluated. Special cosmetic and environmental test methods using non-human subjects were established. (Author)

  8. 10 CFR 95.31 - Protective personnel.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ..., or other person possesses Secret Restricted Data related to nuclear weapons design, manufacturing and vulnerability information; and certain particularly sensitive Naval Nuclear Propulsion Program information (e.g... 10 Energy 2 2011-01-01 2011-01-01 false Protective personnel. 95.31 Section 95.31 Energy...

  9. 10 CFR 95.31 - Protective personnel.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., or other person possesses Secret Restricted Data related to nuclear weapons design, manufacturing and vulnerability information; and certain particularly sensitive Naval Nuclear Propulsion Program information (e.g... 10 Energy 2 2010-01-01 2010-01-01 false Protective personnel. 95.31 Section 95.31 Energy...

  10. 10 CFR 95.31 - Protective personnel.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., or other person possesses Secret Restricted Data related to nuclear weapons design, manufacturing and vulnerability information; and certain particularly sensitive Naval Nuclear Propulsion Program information (e.g... 10 Energy 2 2014-01-01 2014-01-01 false Protective personnel. 95.31 Section 95.31 Energy...

  11. 10 CFR 95.31 - Protective personnel.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., or other person possesses Secret Restricted Data related to nuclear weapons design, manufacturing and vulnerability information; and certain particularly sensitive Naval Nuclear Propulsion Program information (e.g... 10 Energy 2 2013-01-01 2013-01-01 false Protective personnel. 95.31 Section 95.31 Energy...

  12. 10 CFR 95.31 - Protective personnel.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., or other person possesses Secret Restricted Data related to nuclear weapons design, manufacturing and vulnerability information; and certain particularly sensitive Naval Nuclear Propulsion Program information (e.g... 10 Energy 2 2012-01-01 2012-01-01 false Protective personnel. 95.31 Section 95.31 Energy...

  13. The Principle of Digital Subtraction Angiography and Radiological Protection

    PubMed Central

    Okamoto, K.; Ito, J.; Sakai, K.; Yoshimura, S.

    2000-01-01

    Summary Recent improvements in x-ray technology have greatly contributed to the advancement of diagnostic imaging. Fluoroscopically guided neurointerventional procedures with digital subtraction angiography (DSΛ) are being performed with increasing frequency as the treatment of choice for a variety of neurovascular diseases. Radiation-induced skin injuries can occur after extended fluoroscopic exposure times, and the injuries have recently been reported. In this article, measured radiation doses at the surface of Rando Phantom with Skin Dose Monitor, and estimated and measured entrance skin doses in patients underwent neurointerventional procedures are reported as well as means of reducing radiation doses absorbed by patients and personnel to avoid occurrence of radiation-induced injuries. PMID:20667218

  14. 21 CFR 892.6500 - Personnel protective shield.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Personnel protective shield. 892.6500 Section 892.6500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Miscellaneous Devices § 892.6500 Personnel protective shield....

  15. 21 CFR 892.6500 - Personnel protective shield.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Personnel protective shield. 892.6500 Section 892.6500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Miscellaneous Devices § 892.6500 Personnel protective shield....

  16. 21 CFR 892.6500 - Personnel protective shield.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Personnel protective shield. 892.6500 Section 892.6500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Miscellaneous Devices § 892.6500 Personnel protective shield....

  17. 21 CFR 892.6500 - Personnel protective shield.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Personnel protective shield. 892.6500 Section 892.6500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Miscellaneous Devices § 892.6500 Personnel protective shield....

  18. 21 CFR 892.6500 - Personnel protective shield.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Personnel protective shield. 892.6500 Section 892.6500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Miscellaneous Devices § 892.6500 Personnel protective shield....

  19. NASA Developments in Personnel Protective Equipment

    NASA Technical Reports Server (NTRS)

    Graf, John

    2015-01-01

    NASA has some unique and challenging PPE needs: there are credible threats to air quality (fire, ammonia leak, hydrazine leak)that require a contingency breathing apparatus that operates for many hours - but there is not enough space or up-mass to provide supplied air tanks. We cannot use "Scott Air Tanks" commonly used by firefighters and other first responders. NASA has developed a respirator based emergency breathing device. It uses a "one size fits everybody in the astronaut corps" hooded mask with excellent chemical permeability and fire resistance properties, and a filtering respirator cartridge that protects the wearer from ammonia leaks, hydrazine leaks, or products of combustion. If you need a small, lightweight emergency breathing system that lasts longer than a supplied air system, we should meet and learn if NASA sponsored technology development can help.

  20. [Protection of medical personnel in contemporary armed conflicts].

    PubMed

    Goniewicz, Krzysztof; Goniewicz, Mariusz; Pawłowski, Witold

    2016-01-01

    International humanitarian law provides special protection devices and medical personnel during armed conflicts. In today's wars it became more frequent lack of respect for the protective emblems of the red cross and red crescent and the lack of respect for medical activities. The paper presents selected issues of humanitarian law with a particular emphasis on the rules concerning the protection of medical services and victims of armed conflicts. All countries that have ratified the Geneva Conventions and Additional Protocols, are required to comply in time of war the principles contained in them and their dissemination in peacetime. Education societies in the field of international humanitarian law can help to eliminate attacks on medical facilities and personnel and significantly improve the fate of the victims of armed conflict and mitigate the cruelty of war. Knowledge of humanitarian law does not prevent further wars, but it can cause all parties to any armed conflict will abide by its rules during such activities.

  1. Protecting military personnel from high risk dietary supplements.

    PubMed

    Deuster, Patricia A; Lieberman, Harris R

    2016-01-01

    It is legal tomarketmost naturally occurring substances as dietary supplements in the USA without manufacturers demonstrating they are safe or effective, and an endless variety of ingredients, from esoteric botanicals to unapproved pharmaceuticals, can be found in dietary supplements. Use of certain supplements can pose a risk, but since a robust reporting systemdoes not exist in the USA it is difficult to know which are problematic and the number of adverse events (AE) resulting from their use. Certain populations, includingmilitary personnel, aremore likely to use dietary supplements than the general population. Approximately 70% of military personnel take dietary supplements while about 50% of civilians do. Service members prefer supplements purported to enhance physical performance such as supposedly natural stimulants, protein and amino acids, and combination products. Since some of thesemay be problematic, Servicemembers are probably at higher risk of injury than the general population. Ten percent of military populations appear to be taking potentially risky supplements, and the US Department of Defense (DoD) has taken variousmeasures to protect uniformed personnel including education, policy changes, and restricting sales. Actions taken include launching Operation Supplement Safety (OPSS), introducing a High Risk Supplement list, educating health care professionals on reporting AE thatmight be associated with dietary supplements, recommending policy for reporting AE, and developing an online AE reporting system. OPSS is a DoD-wide effort to educate service members, leaders, health care providers, military families, and retirees on how to safely select supplements

  2. Personnel protection through reconnaissance robotics at Superfund remedial sites

    SciTech Connect

    Frank, U.; Esposito, C.; Sullivan, D.

    1992-01-01

    Investigation, mitigation, and clean-up of hazardous materials at Superfund sites normally require on-site workers to perform hazardous and sometimes potentially dangerous functions. Such functions include site surveys and the reconnaissance for airborne and buried toxic environmental contaminants. Workers conducting on-site air monitoring risk dermal, ocular and inhalation exposure to hazardous chemicals, while those performing excavations also risk in addition the potential exposure to fire, explosion, and other physical injury. EPA's current efforts to protect its workers and mitigate these risks include the use of robotic devices. Using robots offers the ultimate in personnel protection by removing the worker from the site of potential exposure. The paper describes the demonstration of a commercially-available robotic platform modified and equipped for air monitoring and the ongoing research for the development of a ground penetrating radar (GPR) system to detect buried chemical waste drums. These robotic devices can be ultimately routinely deployed in the field for the purpose of conducting inherently safe reconnaissance activities during Superfund/SARA remedial operations.

  3. Are health care personnel trained in correct use of personal protective equipment?

    PubMed

    John, Amrita; Tomas, Myreen E; Cadnum, Jennifer L; Mana, Thriveen S C; Jencson, Annette; Shaikh, Aaron; Zabarsky, Trina F; Wilson, Brigid M; Donskey, Curtis J

    2016-07-01

    Effective use of personal protective equipment (PPE) is essential to protect personnel and patients in health care settings. However, in a survey of 222 health care personnel, PPE training was often suboptimal with no requirement for demonstration of proficiency. Fourteen percent of physicians reported no previous training in use of PPE. Published by Elsevier Inc.

  4. Emergency escape system protects personnel from explosion and fire

    NASA Technical Reports Server (NTRS)

    Offik, W. G.

    1966-01-01

    Elevator-type emergency escape system evacuates personnel from tall structures, especially when the possibility of explosion or fire exists. The system consists of a spike shaped rescue cabin which descends along a vertical guide cable, penetrates the dome shaped roof of an underground blast shelter and stops in a deceleration bed of granular material.

  5. Protecting subcontractor personnel during hazardous waste site characterization

    SciTech Connect

    Lankford, B.R.

    1987-01-01

    This paper covers Industrial Hygiene involvement in the Site Characterization Program, focusing on the field oversight responsibilities. It discusses the different types and levels of protective equipment, gives an example of the type of situation that can arise from field characterization efforts, and gives a brief summary of health protection program elements. 3 figs., 3 tabs.

  6. Comparison of radiation dose to operator between transradial and transfemoral coronary angiography with optimised radiation protection: a phantom study.

    PubMed

    Liu, Huiliang; Jin, Zhigeng; Jing, Limin

    2014-03-01

    A growing concern in applying radial access in cardiac catheterisation is the increased operator radiation exposure. This study used an anthropomorphic phantom to simulate transradial and transfemoral coronary angiography with optimised radiation protection conditions. Operator radiation exposure was measured with thermoluminescent dosemeters at predefined locations. Compared with the femoral route, the radial route was associated with a dose decrease of 15 % at the operator's chest level with optimised radiation shielding. However, radiation exposure to the operator's hand remained significantly higher when applying radial access even with collective protective equipment used (by a factor of 2). Furthermore, the efficiency of operator radiation protection was found to be dependent on the tube incidence. Awareness should be raised about the significant increase of radiation exposure to operators' hands in transradial coronary angiography. Protection to reduce the dose level to the hands is necessary and should be further improved.

  7. [The autonomic system reactivity of airport technical personnel using individual protective devices against noise].

    PubMed

    Soldatov, S K; Chistov, S D; Zinkin, V N; Ryzhenkov, S P; Poliakov, N M

    2014-01-01

    The study covered cardiac rhythm variability and hemodynamic parameters in airfield technical personnel under exposure to aviation noise and with use of individual protective measures against noise. Individual protective means remove unfavorable stressful external effects of noise--that is manifested by more stable parameters of sympathetic nervous system activity.

  8. 46 CFR 36.05-10 - Protection of personnel-TB/ALL.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Protection of personnel-TB/ALL. 36.05-10 Section 36.05-10 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS ELEVATED TEMPERATURE CARGOES Cargo Tanks § 36.05-10 Protection of personnel—TB/ALL. (a) Decks, bulkheads, or other structures shall...

  9. 46 CFR 36.05-10 - Protection of personnel-TB/ALL.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Protection of personnel-TB/ALL. 36.05-10 Section 36.05-10 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS ELEVATED TEMPERATURE CARGOES Cargo Tanks § 36.05-10 Protection of personnel—TB/ALL. (a) Decks, bulkheads, or other structures shall...

  10. 33 CFR 150.624 - What are the requirements for protecting personnel from blood-borne pathogens?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... protecting personnel from blood-borne pathogens? 150.624 Section 150.624 Navigation and Navigable Waters... Workplace Safety and Health Blood-Borne Pathogens § 150.624 What are the requirements for protecting personnel from blood-borne pathogens? Measures for protection from the dangers of blood-borne pathogens...

  11. 33 CFR 150.624 - What are the requirements for protecting personnel from blood-borne pathogens?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... protecting personnel from blood-borne pathogens? 150.624 Section 150.624 Navigation and Navigable Waters... Workplace Safety and Health Blood-Borne Pathogens § 150.624 What are the requirements for protecting personnel from blood-borne pathogens? Measures for protection from the dangers of blood-borne pathogens...

  12. 33 CFR 150.624 - What are the requirements for protecting personnel from blood-borne pathogens?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... protecting personnel from blood-borne pathogens? 150.624 Section 150.624 Navigation and Navigable Waters... Workplace Safety and Health Blood-Borne Pathogens § 150.624 What are the requirements for protecting personnel from blood-borne pathogens? Measures for protection from the dangers of blood-borne pathogens...

  13. 33 CFR 150.624 - What are the requirements for protecting personnel from blood-borne pathogens?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... protecting personnel from blood-borne pathogens? 150.624 Section 150.624 Navigation and Navigable Waters... Workplace Safety and Health Blood-Borne Pathogens § 150.624 What are the requirements for protecting personnel from blood-borne pathogens? Measures for protection from the dangers of blood-borne pathogens...

  14. 33 CFR 150.624 - What are the requirements for protecting personnel from blood-borne pathogens?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... protecting personnel from blood-borne pathogens? 150.624 Section 150.624 Navigation and Navigable Waters... Workplace Safety and Health Blood-Borne Pathogens § 150.624 What are the requirements for protecting personnel from blood-borne pathogens? Measures for protection from the dangers of blood-borne pathogens...

  15. Personnel protection systems for electric vehicle charging circuits. Final report

    SciTech Connect

    Skuggevig, W.

    1995-12-01

    The 1996 edition of the National Electrical Code{reg_sign} contains a new Article 625 that covers electric vehicle charging systems. One of the provisions of this article specifies that chargers for electric vehicles will be required to provide protection against electric shock due to ground faults. This report reviews the subject of electric shock by studying the physiological effects of electric current through the human body. A literature search was performed to collect pertinent information, and the information was analyzed. The effects of current magnitude, frequency, duration, alternating and direct current, and supply voltage to ground are included in the study. The physiological effects of muscle tetanization (immobilization or inability to let go) and ventricular fibrillation were considered to be the critical effects from the standpoint of the protection system required by the 1996 Code. A basis for specific safety requirements that can be included in a product safety standard covering electric vehicle charging systems to meet the 1996 Code is suggested by this report.

  16. Interventional Angiography: Radiation Protection for the Examiner by using Lead-free Gloves

    PubMed Central

    Scheer, Fabian; Lüdtke, Christopher Wilhelm; Wiggermann, Philipp; Wissgott, Christian; Andresen, Reimer

    2017-01-01

    Introduction The radiation exposure to unprotected parts of the body requires special attention for the interventional radiologist. During angiographic procedures, hands are exposed to the direct X-ray beam and scattered radiation. Aim The aim of the study was to evaluate the radiation exposure of examiners hand with the use of lead-free X-ray protective gloves in clinical practice in terms of shielding and sense of touch. The aim of the study was to evaluate the radiation exposure of examiners hand with the use of lead-free X-ray protective gloves in clinical practice in terms of shielding and sense of touch. Materials and Methods Phantom measurements were conducted in the direct X-ray beam and the area of scattered radiation with and without shielding. Examiner measurements were determined in interventional angiographies in clinical routine of the lower limb in antegrade puncture technique through the femoral artery. In 24 out of 50 interventions, an elastic natural rubber latex glove with lead-free metal shielding against radiation was used. All measurements were performed with a direct dosimeter. After the intervention, an opinion of the examiner was requested for evaluation of the sense of touch. Results Phantom measurements; when using the protective glove in the direct X-ray beam, a significant increase of the Dose Area Product (DAP) (1084.2-1603.8 mGy*cm2; 67.6%; p<0.001) as well of the examiner’s hand dose (143-221.8 μSv; 64.5%; p<0.001) was observed. A significant reduction of the examiner’s hand dose was verifiable for scattered radiation (1.76-0.75 μSv; 42.6%; p<0.001). Examiner measurements; if protective gloves were used, a significant increase of the DAP (6183.2-10462.9 mGy*cm2; 59.1%; p<0.05) and decrease of the average dose rate (0.76-0.43 mSv/h; 56.6%) for the entire procedure was determined. The tactile sensitivity was assessed as not restricted (18/24). Conclusion The new generation of protective gloves is characterized by a shielding

  17. Radiation protection to the eye and thyroid during diagnostic cerebral angiography: a phantom study.

    PubMed

    Shortt, C P; Malone, L; Thornton, J; Brennan, P; Lee, M J

    2008-08-01

    We measured radiation doses to the eye and thyroid during diagnostic cerebral angiography to assess the effectiveness of bismuth and lead shields at dose reduction. Phantom head angiographic studies were performed with bismuth (study 1) and lead shields (study 2). In study 1 (12 phantoms), thermoluminescent dosimeters (TLD) were placed over the eyes and thyroid in three groups: (i) no shields (four phantoms); (ii) anterior bismuth shields (four phantoms) and (iii) anterior and posterior bismuth shields (four phantoms). In a second study (eight phantoms), lead shields were placed over the thyroid only and TLD dose measurements obtained in two groups: (i) no shielding (four phantoms) and (ii) thyroid lead shielding (four phantoms). A standard 4-vessel cerebral angiogram was performed on each phantom. Study 1 (bismuth shields) showed higher doses to the eyes compared with thyroid (mean 13.03 vs 5.98 mSv, P < 0.001) and a higher eye dose on the X-ray tube side. Overall, the use of bismuth shielding did not significantly reduce dose to either eyes or thyroid in the measured TLD positions. In study 2, a significant thyroid dose reduction was found with the use of lead shields (47%, mean 2.46 vs 4.62 mSv, P < 0.001). Considerable doses to the eyes and thyroid highlight the need for increased awareness of patient protection. Eye shielding is impractical and interferes with diagnostic capability. Thyroid lead shielding yields significant protection to the thyroid, is not in the field of view and should be used routinely.

  18. 77 FR 20743 - Protective Force Personnel Medical, Physical Readiness, Training, and Access Authorization Standards

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-06

    ...; ] DEPARTMENT OF ENERGY 10 CFR Part 1046 RIN 1992-AA40 Protective Force Personnel Medical, Physical Readiness... on the proposed rule to amend the standards for medical, physical performance, training, and access... proposed rule to revise the standards for medical, physical performance, training, and access...

  19. Technical qualification requirements and training programs for radiation protection personnel at Oak Ridge National Laboratory

    SciTech Connect

    Copenhaver, E.D.; Houser, B.S.; Butler, H.M. Jr.; Bogard, J.S.; Fair, M.F.; Haynes, C.E.; Parzyck, D.C.

    1986-04-01

    This document deals with the policies and practices of the Environmental and Occupational Safety Division (EOSD) at the Oak Ridge National Laboratory (ORNL) in regard to the selection, training, qualification, and requalification of radiation protection staff assigned to reactor and nonreactor nuclear facilities. Included are personnel at facilities that: (1) operate reactors or particle accelerators; (2) produce, process, or store radioactive liquid or solid waste; (3) conduct separations operations; (4) engage in research with radioactive materials and radiation sources; and (5) conduct irradiated materials inspection, fuel fabrication, deconamination, or recovery operations. The EOSD personnel also have environmental surveillance and operational and industrial safety responsibilities related to the total Laboratory.

  20. Test plan for personnel protective equipment bubble suit decontamination feasibility study

    SciTech Connect

    Menkhaus, D.E.

    1990-08-01

    This test plan defines the details for performing a study to determine the feasibility of using a shower based system to decontaminate personnel protective equipment (PPE) bubble (encapsulation) suits worn by personnel as they are egressing a mixed-TRU contamination zone. The testing will be performed using an EPA rated Level A fully encapsulating suit. The person directly involved in the suit contamination and shower processes will be provided with Level A protection. This test plan provides a description of the test apparatus, provides details of the tests to be performed, defines the sampling procedures and controls, and defines the analytical methods for the samples collected. The test plan also discusses the data management and the reporting of the test result and the quality assurance and safety requirements for the study. 5 refs., 5 figs., 3 tabs.

  1. [A proposal to improve operating room nursing personnel adherence to mandated X-ray protection measures].

    PubMed

    Huang, Jui-Chen; Wu, Tsan-Mei; Chen, Chi-Hsing; Chen, Shu-Hwa

    2010-04-01

    Cognition of and attitudes toward personal radiation protection amongst operating room nurses have been shown to be inappropriate and insufficient. Research has shown that adherence to full radiation protection measures in the operating room is at only 64 percent. Improvements targeting radiation protection measure compliance were thus developed in order to enhance employee welfare and working environment safety. Raise the rate at which radiation protection measures are properly executed in order to provide a safe, high quality working environment for nursing staff and to establish a safe working environment. The following were identified as able to influence positively the proper implementation of radiation protection measures: (1) hold programs and training courses on radiation protection; (2) ensure adequate rack space in the operating room for lead-lined vests, install warning signals to indicate when a radiation source is active, and mandate that all personnel wear radiation monitoring badges; (3) edit and update radiation protection manuals; and (4) set up standard operation procedures for maintenance and radiation facility cleaning. Correct execution of radiation protection measures rose from 64% to 100%; cognition of radiation hazards and protection increased from 68.4 to 100 (on a scale of 0 to 100); and correct radiation facility maintenance and cleaning rose from 43% to 100%. Enhancement of radiation protection cognition through in-service-training courses and the provision of appropriate protection facilities can raise radiation protection and self-protection abilities amongst medical staff. We strongly recommend that a course on radiation protection be included in the continuing nursing education curriculum for operating room staff. Enhancing radiation protection cognition further is necessary.

  2. 77 FR 13206 - Protective Force Personnel Medical, Physical Readiness, Training, and Access Authorization Standards

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ...The Department of Energy (DOE or Department) proposes to revise the regulation governing the standards for medical, physical performance, training, and access authorizations for protective force (PF) personnel employed by contractors providing security services to the Department. The existing version of this regulation was promulgated in 1993 and substantial portions of the regulation date to the mid- 1980s. Since 1993 DOE policy has placed greater reliance upon technology, vehicular response, and increased firepower and, correspondingly, has reduced its reliance upon the ability of PF personnel to perform the running tasks required in the current regulation. Furthermore, this shift in emphasis has placed a greater premium upon the retention of mature, tactically experienced, and technically sophisticated personnel, particularly since these personnel represent a considerable investment by DOE in security background investigations and training. The proposed revisions bring DOE PF medical and physical readiness requirements in line with these tactical and organizational priorities. The proposed revisions reduce the exposure of the PF population to injuries related to physical readiness testing. They would create a PF readiness classification designed specifically to encourage the retention of experienced personnel. The revisions would further ensure that PF personnel would be evaluated on a case-by-case basis on their ability to perform the essential functions of their positions without posing a direct threat to themselves or site personnel, the facility, or the general public. The proposed revisions would further ensure that reasonable accommodations would be considered before a determination is made that an individual cannot perform the essential functions of a particular position. The proposed rule also would provide for new medical review processes for PF personnel disqualified from medical certification. The proposed rule would ensure that DOE PF medical and

  3. 33 CFR 150.623 - What are the requirements for protecting personnel from hazards associated with confined spaces?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... complies with: (1) 29 CFR 1910.146 for permit-required confined spaces, where applicable; and (2) A... recognized testing laboratory as defined in 29 CFR 1910.7 and that provides levels of personnel protection...

  4. 33 CFR 150.623 - What are the requirements for protecting personnel from hazards associated with confined spaces?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... complies with: (1) 29 CFR 1910.146 for permit-required confined spaces, where applicable; and (2) A... recognized testing laboratory as defined in 29 CFR 1910.7 and that provides levels of personnel protection...

  5. Cerebral angiography

    MedlinePlus

    ... Carotid angiogram; Cervicocerebral catheter-based angiography; Intra-arterial digital subtraction angiography; IADSA ... with the dye are seen. This is called digital subtraction angiography (DSA). After the x-rays are ...

  6. Campus Protective Services: A Self-Instructional Training Course for Campus Security Personnel.

    ERIC Educational Resources Information Center

    Mullendore, Philip

    While most college campuses use non-sworn personnel, mostly students, to supplement regular security or peace officer personnel, there is no legal requirement or formal strategy for training these non-sworn officers. This handbook presents a self-instructional training course for non-sworn campus security personnel and was prepared to meet…

  7. 33 CFR 150.623 - What are the requirements for protecting personnel from hazards associated with confined spaces?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... associated with entering the port's confined spaces, and develop a confined space safe entry program that... recognized testing laboratory as defined in 29 CFR 1910.7 and that provides levels of personnel protection at... implement the confined space safe entry program, the deepwater port operator must determine the...

  8. A Historical Analysis of the Geneva And Hague Conventions and Their Protection of Military Medical Personnel, Facilities, and Transport During World War I.

    DTIC Science & Technology

    1998-06-05

    1998 4. TITLE AND SUBTITLE A Historical Analysis of the Geneva And Hague Conventions and Their Protection of Military Medical Personnel, Facilities...personnel, facilities, and transport during World War I. The analysis focuses on violations against American, British, and French protected medical...and transport. Based upon the analysis , the investigator concluded that the German military frequently and intentionally violated the provisions of

  9. Training retention of Level C personal protective equipment use by emergency medical services personnel.

    PubMed

    Northington, William E; Mahoney, G Michael; Hahn, Michael E; Suyama, Joe; Hostler, Dave

    2007-10-01

    To assess the six-month training retention for out-of-hospital providers donning and doffing Level C personal protective equipment (PPE). In this prospective observational study, 36 out-of-hospital providers enrolled in a paramedic program were trained in Level C (chemical-resistant coverall, butyl gloves, and boots and an air-purifying respirator) PPE use. A standardized training module and checklist of critical actions developed by a hazardous materials (hazmat) technician were used to evaluate donning and doffing. Students were trained until they were able to correctly don and doff the Level C PPE. An investigator used the checklist accompanying the training module to assess proficiency and remediate mistakes. Six months after initial training, the subjects were reassessed using the same investigator and checklist. Errors were designated as either critical (resulted in major self-contamination of the airway, such as early removal of the respirator) or noncritical (potentially resulted in minor self-contamination not involving the airway). Only five subjects (14.3%) were able to don and doff PPE without committing a critical error. The most common critical errors were premature removal of the respirator (65.7%; n = 23) and actions allowing the contaminated suit to touch the body (54.3%; n = 19). The most common noncritical error was possible self-contamination due to the boots not being removed before exposing other body parts (37.1%; n = 13). Of the seven subjects (20%) with additional prior hazmat training, only two donned and doffed PPE without committing a critical error. Retention of proper donning and doffing techniques in paramedic students is poor at six months after initial training. Even in subjects with previous hazmat, firefighter, and emergency medical services training, critical errors were common, suggesting that current training may be inadequate to prevent harmful exposures in emergency medical services personnel working at a hazmat or weapons of

  10. Risk assessments for exposure of deployed military personnel to insecticides and personal protective measures used for disease-vector management.

    PubMed

    Macedo, Paula A; Peterson, Robert K D; Davis, Ryan S

    2007-10-01

    Infectious diseases are problematic for deployed military forces throughout the world, and, historically, more military service days have been lost to insect-vectored diseases than to combat. Because of the limitations in efficacy and availability of both vaccines and therapeutic drugs, vector management often is the best tool that military personnel have against most vector-borne pathogens. However, the use of insecticides may raise concerns about the safety of their effects on the health of the military personnel exposed to them. Therefore, our objective was to use risk assessment methodologies to evaluate health risks to deployed U.S. military personnel from vector management tactics. Our conservative tier-1, quantitative risk assessment focused on acute, subchronic, and chronic exposures and cancer risks to military personnel after insecticide application and use of personal protective measures in different scenarios. Exposures were estimated for every scenario, chemical, and pathway. Acute, subchronic, and chronic risks were assessed using a margin of exposure (MOE) approach. Our MOE was the ratio of a no-observed-adverse-effect level (NOAEL) to an estimated exposure. MOEs were greater than the levels of concern (LOCs) for all surface residual and indoor space spraying exposures, except acute dermal exposure to lambda-cyhalothrin. MOEs were greater than the LOCs for all chemicals in the truck-mounted ultra-low-volume (ULV) exposure scenario. The aggregate cancer risk for permethrin exceeded 1 x 10(-6), but more realistic exposure refinements would reduce the cancer risk below that value. Overall, results indicate that health risks from exposures to insecticides and personal protective measures used by military personnel are low.

  11. Personnel exposure to radiation at some angiographic procedures

    SciTech Connect

    Gustafsson, M.; Lunderquist, A.

    1981-09-01

    Personnel exposure to radiation was investigated during radiological procedures where x-ray shielding is particularly difficult. Ten percutaneous transhepatic cholangiographies, four percutaneous transhepatic portographies, and four coronary angiographies are included in the study. Exposure to radiation was measured at several anatomical sites for both the radiologist and the assisting nurse. Effective dose equivalents as proposed by the International Commisson on Radiological Protection (ICRP) were estimated from the registered absorbed doses.

  12. Personnel exposure to radiation at some angiographic procedures

    SciTech Connect

    Gustafsson, M.; Lunderquist, A.

    1981-09-01

    Personnel exposure to radiation was investigated during radiological procedures where x-ray shielding is particularly difficult. Ten percutaneous transhepatic cholangiographies, four percutaneous transhepatic portographies, and four coronary angiographies are included in the study. Exposure to radiation was measured at several anatomical sites for both the radiologist and the assisting nurse. Effective dose equivalents as proposed by the International Commission on Radiological Protection (ICRP) were estimated from the registered absorbed doses.

  13. Utility of a Novel Reflective Marker Visualized by Flash Photography for Assessment of Personnel Contamination During Removal of Personal Protective Equipment.

    PubMed

    Tomas, Myreen E; Cadnum, Jennifer L; Mana, Thriveen S C; Jencson, Annette L; Koganti, Sreelatha; Alhmidi, Heba; Kundrapu, Sirisha; Sunkesula, Venkata C K; Donskey, Curtis J

    2016-06-01

    In an experimental study, the frequency of contamination of healthcare personnel during removal of contaminated personal protective equipment (PPE) was similar for bacteriophage MS2 and a novel reflective marker visualized using flash photography. The reflective marker could be a useful tool to visualize and document personnel contamination during PPE removal. Infect Control Hosp Epidemiol 2016;37:711-713.

  14. Ambulance personnel adherence to hygiene routines: still protecting ourselves but not the patient.

    PubMed

    Emanuelsson, Lena; Karlsson, Lena; Castrèn, Maaret; Lindström, Veronica

    2013-08-01

    It is well known that adherence to hygiene routines leads to increased quality of care and safety for patients and personnel in hospitals. However, there have been few studies describing hygiene in ambulances, despite the fact that many patients receive advanced medical care and treatment from ambulance services before arriving at an emergency department. Therefore, the purpose of this study was to describe the adherence of ambulance personnel to hygiene routines in the ambulances. A participant observation study in the County of Värmland (Sweden) was conducted over 1 day in November 2010. Seven hygiene-related variables were collected during the observations: disinfection of hands before and after patient contact; correct use of gloves, gowns and short-sleeved uniforms; no rings, watches, or bracelets; and short or tied back hair during patient care. A total of 68 observed ambulance assignments were analyzed in terms of the adherence of personnel to hygiene routines. In 34% of the observed cases, hand rub was used before patient care and, in 72% of the observed cases, the ambulance personnel used hand rub after patient care. Correct adherence to the rule requiring use of a short-sleeved uniform was found in 28% of the observations. Correct adherence to the rule regarding short or tied back hair was found in 91% of the observations. The ambulance personnel were found to have relatively good adherence to some hygiene routines, but not all. The adherence by ambulance personnel to all of the seven observed variables was correct in only 3% of the assignments.

  15. Catheter Angiography

    MedlinePlus

    ... medical conditions. Angiography uses one of three imaging technologies and, in most cases, a contrast material injection ... the extent and severity of the effects of coronary artery disease and plan for a surgical operation, such as ...

  16. Pulmonary angiography

    MedlinePlus

    ... Pulmonary arteriography; Pulmonary angiogram; Angiogram of the lungs Images Pulmonary arteries References Jackson JE, Meaney JFM. Angiography. ... urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows ...

  17. 76 FR 54700 - Protecting the Public and Our Personnel to Ensure Operational Effectiveness

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-02

    ... continue to serve the American people with as little disruption to our operations as possible. DATES... operational disruptions. The Commissioner's authority extends to placing reasonable restrictions on an... our personnel can continue to serve the American people with as little disruption to our operations...

  18. Electrical-shock prevention. Volume 1. Protection of maintenance personnel. Open file report 6 Apr 81-8 Dec 82

    SciTech Connect

    Morley, L.A.; Novak, T.; Trutt, F.C.

    1982-12-08

    The overall objective of this research was to investigate the application, economic, and safety considerations of electrical-shock prevention techniques applied to surface and underground mines. Volume I of this four-volume report is primarily concerned with the protection of maintenance personnel. The scope of the work is specified, electrical shock is defined, and needed ground-fault relay characteristics to prevent ventricular fibrillation are established. This is followed by an analysis of ac systems, a comparison of these systems with respect to body currents, the advantages and disadvantages of the various ground-fault protection techniques, and an analysis of dc systems for off-track vehicles. Summaries and synopses of each of the three remaining volumes are included.

  19. Topics in radiation at accelerators: Radiation physics for personnel and environmental protection

    SciTech Connect

    Cossairt, J.D.

    1993-11-01

    This report discusses the following topics: Composition of Accelerator Radiation Fields; Shielding of Electrons and Photons at Accelerators; Shielding of Hadrons at Accelerators; Low Energy Prompt Radiation Phenomena; Induced Radioactivity at Accelerators; Topics in Radiation Protection Instrumentation at Accelerators; and Accelerator Radiation Protection Program Elements.

  20. Notification: Assessment of the Qualifications of Environmental Protection Agency Personnel With Significant Security Responsibilities

    EPA Pesticide Factsheets

    Project #OMS-FY12-0006, February 15, 2012. The U.S. Environmental Protection Agency (EPA) Office of Inspector General plans to begin preliminary research for the subject project, which will be performed by a contractor.

  1. Organ-specific external dose coefficients and protective apron transmission factors for historical dose reconstruction for medical personnel.

    PubMed

    Simon, Steven L

    2011-07-01

    ICRP/ICRU mono-energetic DCCs and the functions integrated over the air-kerma weighted photon fluence of the 12 defined x-ray spectra. The air kerma-weighted DCCs in this work were developed specifically for an irradiation geometry of anterior to posterior (AP) and for the following tissues: thyroid, breast, ovary, lens of eye, lung, colon, testes, heart, skin (anterior side only), red bone marrow (RBM), and brain. In addition, a series of functional relationships to predict DT Ka-1 values for RBM dependent on body mass index [BMI (kg m-2) ≡ weight per height] and average photon energy were derived from a published analysis. Factors to account for attenuation of radiation by protective lead aprons were also developed. Because lead protective aprons often worn by radiology personnel not only reduce the intensity of x-ray exposure but also appreciably harden the transmitted fluence of bremsstrahlung x-rays, DCCs were separately calculated for organs possibly protected by lead aprons by considering three cases: no apron, 0.25 mm Pb apron, and 0.5 mm Pb apron. For estimation of organ doses from conducting procedures with radioisotopes, continuous functions of the reported mono-energetic values were developed, and DCCs were derived by estimation of the function at relevant energies. By considering the temporal changes in primary exposure-related parameters (e.g., energy distribution), the derived DCCs and transmission factors presented here allow for more realistic historical dose reconstructions for medical personnel when monitoring badge readings are the primary data on which estimation of an individual's organ doses are based.

  2. ORGAN-SPECIFIC EXTERNAL DOSE COEFFICIENTS AND PROTECTIVE APRON TRANSMISSION FACTORS FOR HISTORICAL DOSE RECONSTRUCTION FOR MEDICAL PERSONNEL

    PubMed Central

    Simon, Steven L.

    2014-01-01

    the ICRP/ICRU mono-energetic DCCs and the functions integrated over the air-kerma weighted photon fluence of the 12 defined x-ray spectra. The air kerma-weighted DCCs in this work were developed specifically for an irradiation geometry of anterior to posterior (AP) and for the following tissues: thyroid, breast, ovary, lens of eye, lung, colon, testes, heart, skin (anterior side only), red bone marrow (RBM), heart, and brain. In addition, a series of functional relationships to predict DT per Ka values for RBM dependent on body mass index [BMI (kg m−2) ≡ weight per height2] and average photon energy were derived from a published analysis. Factors to account for attenuation of radiation by protective lead aprons were also developed. Because lead protective aprons often worn by radiology personnel not only reduce the intensity of x-ray exposure but also appreciably harden the transmitted fluence of bremsstrahlung x rays, DCCs were separately calculated for organs possibly protected by lead aprons by considering three cases: no apron, 0.25 mm Pb apron, and 0.5 mm Pb apron. For estimation of organ doses from conducting procedures with radioisotopes, continuous functions of the reported mono-energetic values were developed and DCCs were derived by estimation of the function at relevant energies. By considering the temporal changes in primary exposure-related parameters, e.g., energy distribution, the derived DCCs and transmission factors presented here allow for more realistic historical dose reconstructions for medical personnel when monitoring badge readings are the primary data on which estimation of an individual's organ doses are based. PMID:21617389

  3. Topics in radiation at accelerators: Radiation physics for personnel and environmental protection

    SciTech Connect

    Cossairt, J.D.

    1996-10-01

    In the first chapter, terminology, physical and radiological quantities, and units of measurement used to describe the properties of accelerator radiation fields are reviewed. The general considerations of primary radiation fields pertinent to accelerators are discussed. The primary radiation fields produced by electron beams are described qualitatively and quantitatively. In the same manner the primary radiation fields produced by proton and ion beams are described. Subsequent chapters describe: shielding of electrons and photons at accelerators; shielding of proton and ion accelerators; low energy prompt radiation phenomena; induced radioactivity at accelerators; topics in radiation protection instrumentation at accelerators; and accelerator radiation protection program elements.

  4. Angiography in the Isolated Perfused Kidney: Radiological Evaluation of Vascular Protection in Tissue Ablation by Nonthermal Irreversible Electroporation

    SciTech Connect

    Wendler, Johann Jakob; Pech, Maciej; Blaschke, Simon; Porsch, Markus; Janitzky, Andreas; Ulrich, Matthias; Dudeck, Oliver; Ricke, Jens; Liehr, Uwe-Bernd

    2012-04-15

    Purpose: The nonthermal irreversible electroporation (NTIRE) is a novel nonthermal tissue ablation technique by local application of high-voltage current within microseconds leading to a delayed apoptosis. The purpose of this experimental study was the first angiographic evaluation of the acute damage of renal vascular structure in NTIRE. Methods: Results of conventional dynamic digital substraction angiography (DSA) and visualization of the terminal vascular bed of renal parenchyma by high-resolution X-ray in mammography technique were evaluated before, during, and after NTIRE of three isolated perfused porcine ex vivo kidneys. Results: In the dedicated investigation, no acute vascular destruction of the renal parenchyma and no dysfunction of the kidney perfusion model were observed during or after NTIRE. Conspicuous were concentric wave-like fluctuations of the DSA contrast agent simultaneous to the NTIRE pulses resulting from NTIRE pulse shock wave. Conclusion: The NTIRE offers an ablation method with no acute collateral vascular damage in angiographic evaluation.

  5. Technological advances to allow rapid deployment of a high-valued asset physical protection system by unskilled personnel

    SciTech Connect

    Blattman, D.A.

    1995-12-31

    In recent years, traditional methods of operation in security situations have undergone a major shift. With the ending of the Cold War and the realignment of world power, resources once available for security concerns have been reduced or eliminated. As manpower allocations are reduced, new approaches are necessary to compensate for this loss. In addition, with the shift from superpower confrontation to local/regional conflict, response assets have become more mobile. This creates a new requirement for the physical protection of those items. In response to these changes, Racon, Inc. has successfully commercialized a physical security sensor addressing both of these issues. Easily installed by unskilled personnel, these sensors utilize advanced technology to compensate for reduced manpower levels. In addition, their portable design allows them to travel with response assets, providing the physical security formerly found only in fixed locations.

  6. The Respiratory Protection Effectiveness Clinical Trial (ResPECT): a cluster-randomized comparison of respirator and medical mask effectiveness against respiratory infections in healthcare personnel.

    PubMed

    Radonovich, Lewis J; Bessesen, Mary T; Cummings, Derek A; Eagan, Aaron; Gaydos, Charlotte; Gibert, Cynthia; Gorse, Geoffrey J; Nyquist, Ann-Christine; Reich, Nicholas G; Rodrigues-Barradas, Maria; Savor-Price, Connie; Shaffer, Ronald E; Simberkoff, Michael S; Perl, Trish M

    2016-06-02

    Although N95 filtering facepiece respirators and medical masks are commonly used for protection against respiratory infections in healthcare settings, more clinical evidence is needed to understand the optimal settings and exposure circumstances for healthcare personnel to use these devices. A lack of clinically germane research has led to equivocal, and occasionally conflicting, healthcare respiratory protection recommendations from public health organizations, professional societies, and experts. The Respiratory Protection Effectiveness Clinical Trial (ResPECT) is a prospective comparison of respiratory protective equipment to be conducted at multiple U.S. study sites. Healthcare personnel who work in outpatient settings will be cluster-randomized to wear N95 respirators or medical masks for protection against infections during respiratory virus season. Outcome measures will include laboratory-confirmed viral respiratory infections, acute respiratory illness, and influenza-like illness. Participant exposures to patients, coworkers, and others with symptoms and signs of respiratory infection, both within and beyond the workplace, will be recorded in daily diaries. Adherence to study protocols will be monitored by the study team. ResPECT is designed to better understand the extent to which N95s and MMs reduce clinical illness among healthcare personnel. A fully successful study would produce clinically relevant results that help clinician-leaders make reasoned decisions about protection of healthcare personnel against occupationally acquired respiratory infections and prevention of spread within healthcare systems. The trial is registered at clinicaltrials.gov, number NCT01249625 (11/29/2010).

  7. Design of an Analytical System for the Evaluation of Gloves for Protection of Personnel Handling XCSM

    DTIC Science & Technology

    1993-05-13

    protective gloves during the handling of CSM and XCSM is required for personal safety. Although the use of gloves tested for their resistance to CSM is...absence of specific permeation data for XCSM. In order to better define glove needs for XCSM work, the USAMRDC tasked the MREF to test various glove ...materials for XCSM permeation . In preparing for this, parameters needed to test the gloves were evaluated, along with the methods currently used to

  8. CDC guidance for evaluating health-care personnel for hepatitis B virus protection and for administering postexposure management.

    PubMed

    Schillie, Sarah; Murphy, Trudy V; Sawyer, Mark; Ly, Kathleen; Hughes, Elizabeth; Jiles, Ruth; de Perio, Marie A; Reilly, Meredith; Byrd, Kathy; Ward, John W

    2013-12-20

    This report contains CDC guidance that augments the 2011 recommendations of the Advisory Committee on Immunization Practices (ACIP) for evaluating hepatitis B protection among health-care personnel (HCP) and administering post-exposure prophylaxis. Explicit guidance is provided for persons working, training, or volunteering in health-care settings who have documented hepatitis B (HepB) vaccination years before hire or matriculation (e.g., when HepB vaccination was received as part of routine infant [recommended since 1991] or catch-up adolescent [recommended since 1995] vaccination). In the United States, 2,890 cases of acute hepatitis B were reported to CDC in 2011, and an estimated 18,800 new cases of hepatitis B occurred after accounting for underreporting of cases and asymptomatic infection. Although the rate of acute hepatitis B virus (HBV) infections have declined approximately 89% during 1990-2011, from 8.5 to 0.9 cases per 100,000 population in the United States, the risk for occupationally acquired HBV among HCP persists, largely from exposures to patients with chronic HBV infection. ACIP recommends HepB vaccination for unvaccinated or incompletely vaccinated HCP with reasonably anticipated risk for blood or body fluid exposure. ACIP also recommends that vaccinated HCP receive postvaccination serologic testing (antibody to hepatitis B surface antigen [anti-HBs]) 1-2 months after the final dose of vaccine is administered (CDC. Immunization of health-care personnel: recommendations of the Advisory Committee on Immunization Practices [ACIP]. MMWR 2011;60 [No. RR-7]). Increasing numbers of HCP have received routine HepB vaccination either as infants (recommended since 1991) or as catch-up vaccination (recommended since 1995) in adolescence. HepB vaccination results in protective anti-HBs responses among approximately 95% of healthy-term infants. Certain institutions test vaccinated HCP by measuring anti-HBs upon hire or matriculation, even when anti

  9. Pediatric body MR angiography.

    PubMed

    Krishnamurthy, Rajesh; Muthupillai, Raja; Chung, Taylor

    2009-02-01

    Vascular pathology in children is commonplace and involves every organ system; however, the powerful, noninvasive, and rapid three-dimensional imaging capability offered by MR angiography is underutilized in children. The success of pediatric MR angiography depends on modifying the MR angiography on the basis of patient size, hemodynamic status, and clinical indications in children, and requires an adequate understanding of pediatric-specific hardware, software, and equipment requirements. This article provides an overview of general pediatric MR angiography techniques, common indications for body MR angiography in children, and the complementary role of MR angiography to other vascular imaging modalities in children, including CT angiography, Doppler ultrasound, and catheter angiography.

  10. The functions of social support as protective factors for suicidal ideation in a sample of air force personnel.

    PubMed

    Bryan, Craig J; Hernandez, Ann Marie

    2013-10-01

    This study examined various functions of social support (i.e., tangible, esteem, belonging, and appraisal) were examined as protective factors for suicidal ideation in a sample of 273 active duty Air Force Security Forces personnel. Generalized linear regression analyses were conducted to determine if various social support functions were differentially associated with the presence and severity of suicidal ideation, both as main effects and as moderators of emotional distress. None of the four social support functions differentiated suicidal from nonsuicidal Airmen, but esteem support (i.e., feeling respected, encouraged, and valued by others) was associated with significantly less severe suicidal ideation (B = -.074, SE = .025, p = .003). A significant interaction of tangible support (i.e., access to material resources) with emotional distress indicated that emotional distress was associated with more severe suicidal ideation only among Airmen reporting low levels of tangible support (B = .006, SE = .003, p = .018). When considered concurrently, both tangible and self-esteem functions of social support are differentially associated with decreased suicidal ideation among Airmen, but belonging (i.e., having someone to do things with) and appraisal (i.e., having someone to talk to about problems) functions were not. Findings suggest that different aspects of social support affect suicidal ideation in different ways.

  11. Image quality and radiation exposure with a low tube voltage protocol for coronary CT angiography results of the PROTECTION II Trial.

    PubMed

    Hausleiter, Jörg; Martinoff, Stefan; Hadamitzky, Martin; Martuscelli, Eugenio; Pschierer, Iris; Feuchtner, Gudrun M; Catalán-Sanz, Paz; Czermak, Benedikt; Meyer, Tanja S; Hein, Franziska; Bischoff, Bernhard; Kuse, Miriam; Schömig, Albert; Achenbach, Stephan

    2010-11-01

    reasonably achievable. (Prospective Randomized Trial on Radiation Dose Estimates of Cardiac CT Angiography in Patients Scanned With a 100 kVp Protocol [PROTECTION II]; NCT00611780). Copyright © 2010 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

  12. Randomized Controlled Trial of Radiation Protection With a Patient Lead Shield and a Novel, Nonlead Surgical Cap for Operators Performing Coronary Angiography or Intervention.

    PubMed

    Alazzoni, Ashraf; Gordon, Chris L; Syed, Jaffer; Natarajan, Madhu K; Rokoss, Michael; Schwalm, Jon-David; Mehta, Shamir R; Sheth, Tej; Valettas, Nicholas; Velianou, James; Pandie, Shaheen; Al Khdair, Darar; Tsang, Michael; Meeks, Brandi; Colbran, Kiersten; Waller, Ed; Fu Lee, Shun; Marsden, Tamara; Jolly, Sanjit S

    2015-08-01

    Interventional cardiologists receive one of the highest levels of annual occupational radiation exposure. Further measures to protect healthcare workers are needed. We evaluated the efficacy of a pelvic lead shield and a novel surgical cap in reducing operators' radiation exposure. Patients undergoing coronary angiography or percutaneous coronary intervention (n=230) were randomized to have their procedure with or without a lead shield (Ultraray Medical, Oakville, Canada) placed over the patient. During all procedures, operators wore the No Brainer surgical cap (Worldwide Innovations and Technology, Kansas City, KS) designed to protect the head from radiation exposure. The coprimary outcomes for the lead shield comparison were (1) operator dose (µSv) and (2) operator dose indexed for air kerma (µSv/mGy). For the cap comparison, the primary outcome was the difference between total radiation dose (µSv; internal and external to cap). The lead shield use resulted in a 76% reduction in operator dose (mean dose, 3.07; 95% confidence interval [CI], 2.00-4.71 µSv lead shield group versus 12.57; 95% CI, 8.14-19.40 µSv control group; P<0.001). The mean dose indexed for air kerma was reduced by 72% (0.004; 95% CI, 0.003-0.005 µSv/mGy lead shield group versus 0.015; 95% CI, 0.012-0.019 µSv/mGy control group; P<0.001). The cap use resulted in a significant reduction in operator head radiation exposure (mean left temporal difference [external-internal] radiation dose was 4.79 [95% CI, 3.30-6.68] µSv; P<0.001). The use of a pelvic lead shield and the cap reduced significantly the operator radiation exposure and can be easily incorporated into clinical practice. URL: http://www.clinicaltrials.gov. Unique identifier: NCT02128035. © 2015 American Heart Association, Inc.

  13. Evaluation of the efficacy of additional measures introduced for the protection of healthcare personnel handling antineoplastic drugs.

    PubMed

    Odraska, Pavel; Dolezalova, Lenka; Kuta, Jan; Oravec, Michal; Piler, Pavel; Blaha, Ludek

    2013-03-01

    Due to their adverse effects, antineoplastic drugs are considered as a potential health risk to healthcare personnel. The objective of the study was to compare the surface contamination level of the conventional preparation room and outpatient clinic before and after the implementation of a set of additional protective measures. The measures were targeted at eliminating potential sources of environmental contamination, and modification of the cleaning procedure. The measures introduced into the preparation room consisted of (i) the introduction of manual cleaning of drug vials before they enter the preparation room, (ii) the modification of the routine cleaning procedure performed at the end of each working day (i.e. shifting the cleaning of the isolators as the most contaminated objects from the beginning of the cleaning process to the end), and (iii) the introduction of regular cleaning of the work table every 2 h. The measures introduced into the outpatient clinic consisted of (i) replacement of the standard infusion sets with multichannel sets for safe drug administration, (ii) the introduction of self-cleaning seats to the patient lavatories supporting hygienic and contamination-free seated urination, and (iii) replacement of standard infusion stands with wall-mounted stands, supporting the regular and proper cleaning of the floor beneath. To determine the surface contamination level with antineoplastic drugs, cyclophosphamide and platinum were determined in wipe samples with high performance liquid chromatography with tandem mass spectrometry and inductively coupled plasma mass spectrometry. In the preparation room, depending on the sampling spot and analyte, median concentrations ranged from 5 to 267 pg cm(-2) and from 2 to 368 pg cm(-2) before and after implementation of the measures, respectively. In the outpatient clinic, median concentrations ranged from 5 to 5310 pg cm(-2) and from <0.2 to 574 pg cm(-2) before and after implementation of the measures

  14. Historical review of personnel dosimetry development and its use in radiation protection programs at Hanford 1944 to the 1980s

    SciTech Connect

    Wilson, R.H.

    1987-02-01

    This document is an account of the personnel dosimetry programs as they were developed and practiced at Hanford from their inception in 1943 to 1944 to the 1980s. This history is divided into sections covering the general categories of external and internal measurement methods, in vivo counting, radiation exposure recordkeeping, and calibration of personnel dosimeters. The reasons and circumstances surrounding the inception of these programs at Hanford are discussed. Information about these programs was obtained from documents, letters, and memos that are available in our historical records; the personnel files of many people who participated in these programs; and from the recollections of many long-time, current, and past Hanford employees. For the most part, the history of these programs is presented chronologically to relate their development and use in routine Hanford operations. 131 refs., 38 figs., 23 tabs.

  15. 29 CFR 1926.1431 - Hoisting personnel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... hard hats, employees must be protected by overhead protection on the personnel platform when employees... prohibited from traveling while personnel are hoisted. (l) (m) Pre-lift meeting. A pre-lift meeting must...

  16. 29 CFR 1926.1431 - Hoisting personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... hard hats, employees must be protected by overhead protection on the personnel platform when employees... prohibited from traveling while personnel are hoisted. (l) (m) Pre-lift meeting. A pre-lift meeting must...

  17. Personnel Preparation.

    ERIC Educational Resources Information Center

    Career Development for Exceptional Individuals, 1982

    1982-01-01

    The section on personnel preparation contains two articles--"Teachers-in-Training Conduct Field Trips for Special Class Students" by S. Squires and "A State-Wide, Inservice Project for Special Needs Personnel" by G. Markel and others. (SB)

  18. Interim guidelines for protecting fire-fighting personnel from multiple hazards at nuclear plant sites: Final report

    SciTech Connect

    Klein, A.R.; Bloom, C.W.

    1989-07-01

    This report provides interim guidelines for reducing the impact to fire fighting and other supporting emergency response personnel from the multiple hazards of radiation, heat stress, and trauma when fighting a fire in a United States commercial nuclear power plant. Interim guidelines are provided for fire brigade composition, training, equipment, procedures, strategies, heat stress and trauma. In addition, task definitions are provided to evaluate and further enhance the interim guidelines over the long term. 19 refs.

  19. CT angiography - chest

    MedlinePlus

    Computed tomography angiography - thorax; CTA - lungs; Pulmonary embolism - CTA chest; Thoracic aortic aneurysm - CTA chest; Venous thromboembolism - CTA lung; Blood clot - CTA lung; Embolus - CTA lung; CT ...

  20. Image quality and radiation dose of a prospectively electrocardiography-triggered high-pitch data acquisition strategy for coronary CT angiography: The multicenter, randomized PROTECTION IV study.

    PubMed

    Deseive, Simon; Pugliese, Francesca; Meave, Aloha; Alexanderson, Erick; Martinoff, Stefan; Hadamitzky, Martin; Massberg, Steffen; Hausleiter, Jörg

    2015-01-01

    Concerns have been raised about radiation dose of coronary CT angiography. Although high-pitch acquisition technique yields high potential for radiation dose savings, it is more vulnerable to artifacts, which impair diagnostic image quality. The purpose of this study was to compare 2 scan strategies for coronary CT angiography: a high-pitch helical scan first or a conventional scan first strategy. In this prospective, multicenter trial, we randomized 303 consecutive patients with a low and stable heart rate to either of the aforementioned mentioned strategies. Intravenous β-blockers were administered to achieve target heart rates. All scans were performed on a second-generation dual-source CT scanner. In case of nondiagnostic image quality, coronary CT angiography was allowed to be repeated. The primary end point was to demonstrate noninferior image quality in the high-pitch group. Image quality was assessed on a 4-point scale (1: nondiagnostic, 4: excellent). Secondary end point was total radiation dose. In the high-pitch helical first group, repeat scanning was necessary in 21 patients compared with 14 patients in the conventional first scan group (P = .25). Image quality in the high-pitch group was noninferior compared to the conventional scan group (3.81 ± 0.35 vs. 3.83 ± 0.37; P for noninferiority <.0001). The total effective radiation dose estimate was 58% lower in the high-pitch group (2.0 ± 2.4 vs. 4.7 ± 4.8 mSv; P < .0001). In patients with a low and stable heart rate diagnostic image quality can be maintained with a high-pitch helical scan first strategy while 58% of radiation dose can be saved. Copyright © 2015 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.

  1. Indocyanine green video angiography

    NASA Astrophysics Data System (ADS)

    Frambach, Donald A.

    1994-06-01

    Over the last two years, ophthalmologists have begun to use indocyanine green angiography as a supplement to fluorescein angiography. Unlike fluorescein, indocyanine green absorbs near infrared and emits slightly longer infrared light. Therefore, indocyanine green angiography images structures deeper in the retina and through blood, pigment, and turbid serous fluid that accumulates in a number of diseases. In addition, indocyanine green shows very different properties of dye leakage than does fluorescein and this can be used to identify certain abnormal blood vessels that grow beneath the retinas of patients with macular degeneration. Finally, indocyanine green fluoresces only 4% as efficiently as fluorescein which has presented a major technical problem until highly amplified video systems have become available to ophthalmologists. We have used a scanning laser ophthalmoscope to perform video indocyanine green angiography at the Doheny Eye Institute since November, 1991. In this paper, I will present several clinical cases that demonstrate the clinical usefulness of indocyanine green angiography.

  2. Effect of combat eye protection on field of view among active-duty U.S. military personnel.

    PubMed

    Gunther, Peter J; Riddle, Mark S

    2008-11-01

    This study was conducted to determine if ballistic protective eyewear issued to U.S. military service members causes functional blind spots in the visual field. The study also investigated whether the use of corrective lenses with these devices contributes to defects in the visual field. Visual fields were measured using the Esterman Binocular Function test on the Humphrey Field Analyzer. Each subject performed the test with no devices and then repeated the test while wearing several combinations of ballistic eyewear (spectacles or goggles) and prescription correction. Mean differences in Esterman scores between each device and baseline were analyzed. The spectacle devices did not show significant differences in mean Esterman scores from baseline. The goggle systems did show significant reductions in the peripheral field (P < 0.0001). The use of prescription correction with combat eye protection increased the number of missed points in the periphery by an average of 12.2% compared with ballistic devices alone (P < 0.0001). The use of ballistic protective goggles and prescription lens inserts with military combat eye protection causes a significant reduction in the peripheral field. Service members should be educated to replace eye movements with head movements when scanning the periphery.

  3. The role of protective lead clothing in reducing radiation exposure rates to personnel during equine bone scintigraphy.

    PubMed

    Steyn, Phillip F; Uhrig, John

    2005-01-01

    Bone scintigraphy is often used in horses because of its sensitivity and noninvasive nature. A 99mTc labeled radiopharmaceutical is injected at a dose of between 5.7 and 7.3GBq. Images are acquired immediately postinjection and 2-4h post. People are often in the room with the horse during the acquisition process. Objectives of this study were to (a) document the radiation exposure rates at different distances from various sites of the horse at varying times post injection and (b) study the usefulness of wearing lead aprons to reduce exposure rates to personnel. Radiation exposure rates were measured in at three distances (at skin surface and at 30 and 100 cm from the skin) from three sites (shoulder, thorax, and pelvis) in 19 horses. Exposure rates were measured with and without shielding by a 0.5-mm lead equivalent apron during both the pool and delayed phases. A 0.5mm equivalent lead apron significantly decreases radiation exposure (P<0.05) at these three distances from the three sites during both image acquisition phases. Mean dose reduction factors from the lead apron range from 3.6 to 5.7.

  4. Seasonal Influenza Vaccine and Protection against Pandemic (H1N1) 2009-Associated Illness Among US Military Personnel

    DTIC Science & Technology

    2010-05-01

    severe) outcomes and warrants further investigation. Our findings further complement recent reports among civilian populations in Mexico [13,14] and among...et al. (2009) Infection and death from influenza A H1N1 virus in Mexico : a retrospective analysis. Lancet 374: 2072–2079. 14. Garcia-Garcia L...Valdespino-Gomez JL, Lazcano-Ponce E, Jimenez-Corona A, Higuera- Iglesias A, et al. (2009) Partial protection of seasonal trivalent inactivated vaccine

  5. Educational Personnel Evaluation.

    ERIC Educational Resources Information Center

    Thomas, M. Donald

    1985-01-01

    In this successful 10-year-old Salt Lake City, Utah, personnel evaluation program, every employee is entitled to and guaranteed the protection of due process--shortcomings are identified, assistance provided, and peers involved in employment decisions. Employees who cannot provide satisfactory service or learn the necessary skills are dismissed.…

  6. Seasonal Influenza Vaccine and Protection against Pandemic (H1N1) 2009-Associated Illness among US Military Personnel

    PubMed Central

    Johns, Matthew C.; Eick, Angelia A.; Blazes, David L.; Lee, Seung-eun; Perdue, Christopher L.; Lipnick, Robert; Vest, Kelly G.; Russell, Kevin L.; DeFraites, Robert F.; Sanchez, Jose L.

    2010-01-01

    Introduction A novel A/H1N1 virus is the cause of the present influenza pandemic; vaccination is a key countermeasure, however, few data assessing prior seasonal vaccine effectiveness (VE) against the pandemic strain of H1N1 (pH1N1) virus are available. Materials and Methods Surveillance of influenza-related medical encounter data of active duty military service members stationed in the United States during the period of April–October 2009 with comparison of pH1N1-confirmed cases and location and date-matched controls. Crude odds ratios (OR) and VE estimates for immunized versus non-immunized were calculated as well as adjusted OR (AOR) controlling for sex, age group, and history of prior influenza vaccination. Separate stratified VE analyses by vaccine type (trivalent inactivated [TIV] or live attenuated [LAIV]), age groups and hospitalization status were also performed. For the period of April 20 to October 15, 2009, a total of 1,205 cases of pH1N1-confirmed cases were reported, 966 (80%) among males and over one-half (58%) under 25 years of age. Overall VE for service members was found to be 45% (95% CI, 33 to 55%). Immunization with prior season's TIV (VE = 44%, 95% CI, 32 to 54%) as well as LAIV (VE = 24%, 95% CI, 6 to 38%) were both found to be associated with protection. Of significance, VE against a severe disease outcome was higher (VE = 62%, 95% CI, 14 to 84%) than against milder outcomes (VE = 42%, 95% CI, 29 to 53%). Conclusion A moderate association with protection against clinically apparent, laboratory-confirmed Pandemic (H1N1) 2009-associated illness was found for immunization with either TIV or LAIV 2008–09 seasonal influenza vaccines. This association with protection was found to be especially apparent for severe disease as compared to milder outcome, as well as in the youngest and older populations. Prior vaccination with seasonal influenza vaccines in 2004–08 was also independently associated with protection. PMID:20502705

  7. CT Angiography (CTA)

    MedlinePlus

    ... medical conditions. Angiography uses one of three imaging technologies and, in most cases, a contrast material injection ... the extent and severity of the effects of coronary artery disease and plan for a surgical operation, such as ...

  8. Enclosure Requirements to Protect Personnel from Spinning Rotor Frailures at the Power Electronics and Electric Machinery Research Center

    SciTech Connect

    McKeever, John W

    2007-08-01

    Performance evaluation of electric motors is a major function of the Power Electronics and Electric Machinery Research Center (PEEMRC). Normally these motors have a fixed wire-wound stator and a rotating rotor, which may have conductors embedded in a ferromagnetic core (induction motors), magnets mounted on the surface of the ferromagnetic core with a thin metal or composite cylinder or ring to hold them in place, or magnets embedded in the ferromagnetic core. Most of the work currently involves the last two permanent magnet (PM) configurations. Although the stator of a radial-gap motor can absorb energy from many of the fragments ejected from the rotor during operation, the stator of an axial-gap motor is not positioned to provide significant protection. The housing of each motor can also absorb some of the energy. The most conservative approach, however, is to assume that all fragments from the rotor must be contained by a protective enclosure. An ideal enclosure is transparent. Manufacturers of such plastics as Lexan, Tuffak, and Cyrolon sell different variations of transparent enclosure material. Lexan is a polycarbonate sheet. Lexgard{reg_sign} is a penetration resistant material made by layering polycarbonate material between pieces of ordinary glass. A fragment striking a sheet of enclosure material will pierce the surface layer, but the layered polycarbonate-glass material is able to absorb the fragment's energy before it completes penetration. Tuffak{reg_sign} is Lexan polycarbonate. Cyrolon{reg_sign} bullet resistant material is acrylic sheet. The ability of the enclosure to stop a fragment depends on its thickness as well as the penetration capability of the fragment; for example, a lead fragment has much less penetrating capability than a steel fragment. Enclosure thicknesses are commercially available to provide several levels of protection. These levels depend on the momentum of the fragments and have been evaluated for some common types of ammunition

  9. 5-F catheter in cerebral angiography

    SciTech Connect

    O'Reilly, G.V.; Naheedy, M.H.; Colucci, V.M.; Hammerschlag, S.B.

    1981-11-01

    Although the 5-F catheter is reputed to cause less vascular trauma than larger catheters, subintimal injections of contrast material have occurred following intimal damage by the catheter tip. Microscopic studies of the tips of two widely used 5-F polyethylene catheters have revealed a difference in configuration resulting in one of the catheters becoming markedly damaged during angiography. The authors make recommendations for finishing and protecting the catheter tip.

  10. Personnel Launch System definition

    NASA Astrophysics Data System (ADS)

    Piland, William M.; Talay, Theodore A.; Stone, Howard W.

    1990-10-01

    A lifting-body Personnel Launch System (PLS) is defined for assured manned access to space for future U.S. space missions. The reusable craft described is configured for reliable and safe operations, maintainability, affordability, and improved operability, and could reduce life-cycle costs associated with placing personnel into orbit. Flight simulations show the PLS to be a very flyable vehicle with very little control and propellant expenditure required during entry. The attention to crew safety has resulted in the design of a system that provides protection for the crew throughout the mission profile. However, a new operations philosophy for manned space vehicles must be adopted to fully achieve low-cost, manned earth-to-orbit transportation.

  11. Personnel Launch System definition

    NASA Technical Reports Server (NTRS)

    Piland, William M.; Talay, Theodore A.; Stone, Howard W.

    1990-01-01

    A lifting-body Personnel Launch System (PLS) is defined for assured manned access to space for future U.S. space missions. The reusable craft described is configured for reliable and safe operations, maintainability, affordability, and improved operability, and could reduce life-cycle costs associated with placing personnel into orbit. Flight simulations show the PLS to be a very flyable vehicle with very little control and propellant expenditure required during entry. The attention to crew safety has resulted in the design of a system that provides protection for the crew throughout the mission profile. However, a new operations philosophy for manned space vehicles must be adopted to fully achieve low-cost, manned earth-to-orbit transportation.

  12. PERSONNEL DOSIMETER

    DOEpatents

    Birkhoff, R.D.; Hubbell, H.H. Jr.; Johnson, R.M.

    1959-02-24

    A personnel dosimeter sensitive to both gamma and beta radiation is described. The dosimeter consists of an electrical conductive cylinder having a wall thickness of substantially 7 milligrams per square centimeter and an electrode disposed axially within the cylinder and insulated therefrom to maintain a potential impressed between the electrode and the cylinder. A cylindrical perforated shield provided with a known percentage of void area is disposed concentrically about the cylinder. The shield is formed of a material which does not contain more than 15 percent of an element higher than atomic weight 13. The dose actually received is at most the gamma dose plus the beta dose indicated by discharge of the dosimeter divided by the known percentage.

  13. Protective measures and H5N1-seroprevalence among personnel tasked with bird collection during an outbreak of avian influenza A/H5N1 in wild birds, Ruegen, Germany, 2006

    PubMed Central

    2009-01-01

    Background In Germany, the first outbreak of highly pathogenic avian influenza A/H5N1 occurred among wild birds on the island of Ruegen between February and April 2006. The aim of this study was to investigate the use of recommended protective measures and to measure H5N1-seroprevalence among personnel tasked with bird collection. Methods Inclusion criteria of our study were participation in collecting wild birds on Ruegen between February and March 2006. Study participants were asked to complete a questionnaire, and to provide blood samples. For evaluation of the use of protective measures, we developed a personal protective equipment (PPE)-score ranging between 0 and 9, where 9 corresponds to a consistent and complete use of PPE. Sera were tested by plaque neutralization (PN) and microneutralization (MN) assays. Reactive sera were reanalysed in the World Health Organization-Collaborating Centre (WHO-CC) using MN assay. Results Of the eligible personnel, consisting of firemen, government workers and veterinarians, 61% (97/154) participated in the study. Of those, 13% reported having always worn all PPE-devices during bird collection (PPE-score: 9). Adherence differed between firemen (mean PPE-score: 6.6) and government workers (mean PPE-score: 4.5; p = 0.006). The proportion of personnel always adherent to wearing PPE was lowest for masks (19%). Of the participants, 18% had received seasonal influenza vaccination prior to the outbreak. There were no reports of influenza-like illness. Five sera initially H5-reactive by PN assay were negative by WHO-CC confirmatory testing. Conclusion Gaps and variability in adherence demonstrate the risk of exposure to avian influenza under conditions of wild bird collection, and justify serological testing and regular training of task personnel. PMID:19835632

  14. Protective measures and H5N1-seroprevalence among personnel tasked with bird collection during an outbreak of avian influenza A/H5N1 in wild birds, Ruegen, Germany, 2006.

    PubMed

    Cai, Wei; Schweiger, Brunhilde; Buchholz, Udo; Buda, Silke; Littmann, Martina; Heusler, Jörg; Haas, Walter

    2009-10-18

    In Germany, the first outbreak of highly pathogenic avian influenza A/H5N1 occurred among wild birds on the island of Ruegen between February and April 2006. The aim of this study was to investigate the use of recommended protective measures and to measure H5N1-seroprevalence among personnel tasked with bird collection. Inclusion criteria of our study were participation in collecting wild birds on Ruegen between February and March 2006. Study participants were asked to complete a questionnaire, and to provide blood samples. For evaluation of the use of protective measures, we developed a personal protective equipment (PPE)-score ranging between 0 and 9, where 9 corresponds to a consistent and complete use of PPE. Sera were tested by plaque neutralization (PN) and microneutralization (MN) assays. Reactive sera were reanalyzed in the World Health Organization-Collaborating Centre (WHO-CC) using MN assay. Of the eligible personnel, consisting of firemen, government workers and veterinarians, 61% (97/154) participated in the study. Of those, 13% reported having always worn all PPE-devices during bird collection (PPE-score: 9). Adherence differed between firemen (mean PPE-score: 6.6) and government workers (mean PPE-score: 4.5; p = 0.006). The proportion of personnel always adherent to wearing PPE was lowest for masks (19%). Of the participants, 18% had received seasonal influenza vaccination prior to the outbreak. There were no reports of influenza-like illness. Five sera initially H5-reactive by PN assay were negative by WHO-CC confirmatory testing. Gaps and variability in adherence demonstrate the risk of exposure to avian influenza under conditions of wild bird collection, and justify serological testing and regular training of task personnel.

  15. Angiography and the gastrointestinal bleeder

    SciTech Connect

    Baum, S.

    1982-05-01

    The role of angiography in the diagnosis and treatment of gastrointestinal hemorrhage is discussed. Three categories of gastrointestinal bleeding are considered: upper gastrointestinal bleeding due to gastroesophageal varices, upper gastrointestinal bleeding of arterial or capillary origin, and lower gastrointestinal bleeding. The advantages and disadvantages of angiography are compared with those of radionuclide scanning and endoscopy or colonoscopy. It is anticipated that, as radionuclide scans are more widely employed, angiography will eventually be performed only in those patients with positive scans.

  16. Radiation exposure to operating staff during rotational flat-panel angiography and C-arm cone beam computed tomography (CT) applications.

    PubMed

    Schulz, Boris; Heidenreich, Ralf; Heidenreich, Monika; Eichler, Katrin; Thalhammer, Axel; Naeem, Naguib Nagy Naguib; Vogl, Thomas Josef; Zangos, Stefan

    2012-12-01

    To evaluate the radiation exposure for operating personnel associated with rotational flat-panel angiography and C-arm cone beam CT. Using a dedicated angiography-suite, 2D and 3D examinations of the liver were performed on a phantom to generate scattered radiation. Exposure was measured with a dosimeter at predefined heights (eye, thyroid, breast, gonads and knee) at the physician's location. Analysis included 3D procedures with a field of view (FOV) of 24 cm × 18 cm (8s/rotation, 20s/rotation and 5s/2 rotations), and 47 cm×18 cm (16s/2 rotations) and standard 2D angiography (10s, FOV 24 cm×18 cm). Measurements showed the highest radiation dose at the eye and thyroid level. In comparison to 2D-DSA (3.9 μSv eye-exposure), the 3D procedures caused an increased radiation exposure both in standard FOV (8s/rotation: 28.0 μSv, 20s/rotation: 79.3 μSv, 5s/2 rotations: 32.5 μSv) and large FOV (37.6 μSv). Proportional distributions were measured for the residual heights. With the use of lead glass, irradiation of the eye lens was reduced to 0.2 μSv (2D DSA) and 10.6 μSv (3D technique with 20s/rotation). Rotational flat-panel angiography and C-arm cone beam applications significantly increase radiation exposure to the attending operator in comparison to 2D angiography. Our study indicates that the physician should wear protective devices and leave the examination room when performing 3D examinations. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

  17. Competent human research personnel.

    PubMed

    Arford, Patricia H; Knowles, Marilyn B; Sneed, Nancee V

    2008-12-01

    The process of conducting human research is highly regulated, rigorous, detailed oriented, potentially harmful, and, hopefully, beneficial. Health professionals learn how to critique, design, analyze, and apply human research but have minimal education in how to conduct human research. Successful completion of a 24-hour course was mandated for research support personnel to enhance the protection of human subjects, improve the integrity of data collected, and ensure cost-effective results. Routine audits demonstrated that the course substantially improved the documentation of the informed consent process, source documentation, protocol adherence, and regulatory compliance.

  18. Innovative technologies targeting vector populations to mitigate the risk of exposure to leishmaniasis and protect deployed U.S. Military personnel in the Middle East

    USDA-ARS?s Scientific Manuscript database

    Phlebotomine sand flies, including Phlebotomus papatasi, are blood feeders and vectors of significant public health importance because they transmit Leishmania spp., which cause leishmaniasis. Deployed U.S. Military personnel in the Middle East suffer from sand fly bites and are at risk of contract...

  19. Innovative technologies targeting vector populations to mitigate the risk of exposure to leishmaniasis and protect deployed U.S. Military personnel in the Middle East

    USDA-ARS?s Scientific Manuscript database

    Phlebotomine sand flies, including Phlebotomus papatasi, are blood feeders and vectors of significant public health importance because they transmit Leishmania spp., which cause leishmaniasis. Deployed U.S. Military personnel in the Middle East suffer from sand fly bites and are at risk of contracti...

  20. Evaluation of insecticides and repellents for the control of the sand fly Phlebotomus papatasi to protect deployed U.S. Military personnel

    USDA-ARS?s Scientific Manuscript database

    Phlebotomine sand flies, including Phlebotomus papatasi, are important blood feeders and vectors that transmit the disease agents (Leishmania) that cause Leishmaniasis. Deployed U.S. Military Personnel in Iraq and Afghanistan suffered from sand fly bites and the disease they transmit. A USDA-DoD joi...

  1. 40 CFR 267.35 - How do I ensure access for personnel and equipment during emergencies?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... for personnel and equipment during emergencies? You must maintain enough aisle space to allow the unobstructed movement of personnel, fire protection equipment, spill control equipment, and decontamination...

  2. 40 CFR 267.35 - How do I ensure access for personnel and equipment during emergencies?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for personnel and equipment during emergencies? You must maintain enough aisle space to allow the unobstructed movement of personnel, fire protection equipment, spill control equipment, and decontamination...

  3. 40 CFR 267.35 - How do I ensure access for personnel and equipment during emergencies?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... for personnel and equipment during emergencies? You must maintain enough aisle space to allow the unobstructed movement of personnel, fire protection equipment, spill control equipment, and decontamination...

  4. 40 CFR 267.35 - How do I ensure access for personnel and equipment during emergencies?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for personnel and equipment during emergencies? You must maintain enough aisle space to allow the unobstructed movement of personnel, fire protection equipment, spill control equipment, and decontamination...

  5. Pediatric digital subtraction angiography

    SciTech Connect

    Amundson, G.M.; Wesenberg, R.L.; Mueller, D.L.; Reid, R.H.

    1984-12-01

    Experience with intravenous digital subtraction angiography (DSA) in infants and children is limited, although its relative rate of performance, low complication rate, and diagnostic accuracy indicate great potential. The authors performed 87 DSA examinations (74 patients) and obtained sufficient detail to facilitate diagnosis in most cases. The major problems of patient movement and overlapping vessels can be minimized by judicious use of sedation and strict attention to technique. Exposure of patients to radiation has not been a limiting factor since our system uses low exposure factors. Our results demonstrate that DSA has wide applicability to many organ systems and is especially useful in intracranial disease and for preoperative evaluation of neoplasms.

  6. Optical Coherence Tomography Angiography

    PubMed Central

    Gao, Simon S.; Jia, Yali; Zhang, Miao; Su, Johnny P.; Liu, Gangjun; Hwang, Thomas S.; Bailey, Steven T.; Huang, David

    2016-01-01

    Optical coherence tomography angiography (OCTA) is a noninvasive approach that can visualize blood vessels down to the capillary level. With the advent of high-speed OCT and efficient algorithms, practical OCTA of ocular circulation is now available to ophthalmologists. Clinical investigations that used OCTA have increased exponentially in the past few years. This review will cover the history of OCTA and survey its most important clinical applications. The salient problems in the interpretation and analysis of OCTA are described, and recent advances are highlighted. PMID:27409483

  7. Fluorescent blood cell angiography

    NASA Astrophysics Data System (ADS)

    Ben-nun, Joshua; Constable, Ian J.

    1994-06-01

    Fluorescein angiography is currently the main method for evaluation of the retinal vascular patency. Ashton noted that capillary patency to the small fluorescein molecule may differ from that of the larger red blood cells. He concluded that fluorescein angiography is not able to demonstrate a developing stenosis, that might be the precipitating cause of a later capillary closure in various microvasculopathies. Sarelius et al have shown, in hamster cheek pouch and cremaster muscle, that fluorescently labeled erythrocytes in known concentrations can be used for the direct measurement of capillary flow parameters. The only assumption that this method relies on, is that the labeled cells are rheologically normal and therefore reflect the behavior of the total cell population. We have developed a new method for an in-vivo, real-time demonstration of the blood cell flow in the retinal capillary net. Based on the assumption presented by Sarelius et al, measurement and analysis of the retinal capillary blood cell flow is also possible from the results achieved by the new method.

  8. Personnel emergency carrier vehicle

    NASA Technical Reports Server (NTRS)

    Owens, Lester J. (Inventor); Fedor, Otto H. (Inventor)

    1987-01-01

    A personnel emergency carrier vehicle is disclosed which includes a vehicle frame supported on steerable front wheels and driven rear wheels. A supply of breathing air is connected to quick connect face mask coupling and umbilical cord couplings for supplying breathing air to an injured worker or attendant either with or without a self-contained atmospheric protection suit for protection against hazardous gases at an accident site. A non-sparking hydraulic motion is utilized to drive the vehicle and suitable direction and throttling controls are provided for controlling the delivery of a hydraulic driving fluid from a pressurized hydraulic fluid accumulator. A steering axis is steerable through a handle to steer the front wheels through a linkage assembly.

  9. 33 CFR 157.154 - Assistant personnel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK Crude Oil Washing (COW) System on Tank Vessels Personnel § 157.154 Assistant personnel. The owner... the Crude Oil Washing Operations and Equipment Manual approved by the Coast Guard under § 157.112...

  10. 33 CFR 157.154 - Assistant personnel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK Crude Oil Washing (COW) System on Tank Vessels Personnel § 157.154 Assistant personnel. The owner... the Crude Oil Washing Operations and Equipment Manual approved by the Coast Guard under § 157.112...

  11. 33 CFR 157.154 - Assistant personnel.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK Crude Oil Washing (COW) System on Tank Vessels Personnel § 157.154 Assistant personnel. The owner... the Crude Oil Washing Operations and Equipment Manual approved by the Coast Guard under § 157.112...

  12. 33 CFR 157.154 - Assistant personnel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK Crude Oil Washing (COW) System on Tank Vessels Personnel § 157.154 Assistant personnel. The owner... the Crude Oil Washing Operations and Equipment Manual approved by the Coast Guard under § 157.112...

  13. 33 CFR 157.154 - Assistant personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK Crude Oil Washing (COW) System on Tank Vessels Personnel § 157.154 Assistant personnel. The owner... the Crude Oil Washing Operations and Equipment Manual approved by the Coast Guard under § 157.112...

  14. Optical projection angiography

    NASA Astrophysics Data System (ADS)

    Liao, Riwei; Wang, Mingyi; Zhang, Fuli; Han, Dingan; Wang, Ruikang K.; Yang, Guojian; Zeng, Yaguang

    2016-11-01

    We propose the optical projection angiography (OPA) based on lateral dynamic scattering light for visualizing a three-dimensional (3D) blood-flow network. In OPA, a pulsed laser source illuminates a live biological sample for eliminating digital camera integration effects. The 2D flow image can be obtained by separating the dynamic and static scattering light signal of each camera pixel in the frequency domain. Flow images at a different angle are combined to reconstruct the 3D volume of the sample to realize OPA. Moreover, as our experiment retains the bright-field optical projection tomography (OPT) setup, the OPA image for the circulatory system and the OPT image for the skeletal structure can simultaneously be reconstructed. The experimental results can potentially be applied in physiological development studies.

  15. Optical coherence angiography

    PubMed Central

    Wylęgała, Adam; Teper, Sławomir; Dobrowolski, Dariusz; Wylęgała, Edward

    2016-01-01

    Abstract Background: Retinal vascular diseases are one of the most common causes of blindness in the developed world. Optical Coherence Tomography Angiography (OCT-A) is a new noninvasive method that uses several algorithms to detect blood movement. This enables the creation of high-resolution vascular images with contrast depicting motionless tissue. Methods: This review presents the results of articles relevant to age-related macular degeneration (AMD), diabetic retinopathy (DR), and OCT-A. The OCT-A technique can successfully be used in the diagnosis of neovascularization, retinal vein occlusion (RVO) and retinal artery occlusion (RAO), vessel abnormalities and even anterior segment neovascularization. OCT-A can also be applied to compute data such as vessel density, and flow index in both superficial and deep plexuses. Results: Many studies have compared fluorescein angiography with OCT-A. Other studies have reported differences in vascular density in AMD patients and have compared them with people having healthy eyes. Although OCT-A offers rapid picture acquisition, high repeatability and resolution, it also has many drawbacks. The most common are: motion artifacts, projections from overlying vessels and limited field of view. An interesting new application is the possibility to assess changes during antivascular endothelial growth factor (anti-VEGF) therapy. Another function of OCT-A is the possible application in the study of choriocapillaries in many fields of ocular pathology. Conclusion: OCT-A is a new promising method that allows the visualization of the retinal vascular network and the counting of blood flow parameters. This technique provides reliable images useful in clinical routines. PMID:27741104

  16. 40 CFR 160.29 - Personnel.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 25 2012-07-01 2012-07-01 false Personnel. 160.29 Section 160.29 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY... facility shall maintain a current summary of training and experience and job description for...

  17. 40 CFR 160.29 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Personnel. 160.29 Section 160.29 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY... facility shall maintain a current summary of training and experience and job description for...

  18. 40 CFR 160.29 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Personnel. 160.29 Section 160.29 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY... facility shall maintain a current summary of training and experience and job description for...

  19. 40 CFR 160.29 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 24 2014-07-01 2014-07-01 false Personnel. 160.29 Section 160.29 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY... facility shall maintain a current summary of training and experience and job description for...

  20. 40 CFR 160.29 - Personnel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 25 2013-07-01 2013-07-01 false Personnel. 160.29 Section 160.29 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY... facility shall maintain a current summary of training and experience and job description for...

  1. CT angiography - head and neck

    MedlinePlus

    ... medlineplus.gov/ency/article/007677.htm CT angiography - head and neck To use the sharing features on this page, ... create pictures of the blood vessels in the head and neck. How the Test is Performed You will be ...

  2. CT angiography - abdomen and pelvis

    MedlinePlus

    Computed tomography angiography - abdomen and pelvis; CTA - abdomen and pelvis; Renal artery - CTA; Aortic - CTA; Mesenteric CTA ... belly or pelvis Masses and tumors in the abdomen or pelvis, including cancer, when needed to help ...

  3. An Evaluation of the Organ Dose Received by Cardiologists Arising From Angiography Examinations in Educational Hospital in Rasht

    PubMed Central

    Shoshtary, Akram; Islamian, Jalil Pirayesh; Asadinezhad, Mohsen; Sadremomtaz, Alireza

    2016-01-01

    Interventional procedures, cine acquisitions and operation of fluoroscopic equipment in high-dose fluoroscopic modes, involve long fluoroscopic times which can lead to high staff doses. Also, Coronary angiography (CA) procedures require the cardiologist and assisting personnel to remain close to the patient, which is the main source of scattered radiation. Thus, radiation exposure is a significant concern for radiation workers and it is important to measure the radiation doses received by personnel and evaluate the parameters concerning total radiation burden. In this research, we investigated radiation doses to 10 cardiologists performing 120 CA procedures. Using thermo luminescent dosimeters doses to the wrists, thyroid and eyes per procedure were measured. Based on the measured dose values, maximum doses to the Left wrist, Right wrist, thyroid and eyes of cardiologist were measured 241.45 µSv, 203.17 µSv, 78.21 µSv and 44.58 µSv, respectively. The results of this study indicate that distance from the source, use of protective equipment’s, procedure complexity, equipment performance, and cardiologist experience are the principal exposure-determining variables. It can be conclude that if adequate radiation protection approaches have been implemented, occupational dose levels to cardiologists would be within the regulated acceptable dose limits. PMID:26925906

  4. Technical aspects of CT angiography.

    PubMed

    Kuszyk, B S; Fishman, E K

    1998-10-01

    The basic tasks of spiral CT acquisition, image processing, and image display are the foundations underlying CT angiography regardless of the anatomic region of interest. Volume rendering is a rapidly emerging image processing technique for creating three-dimensional (3D) images from CT datasets, which has important advantages over other 3D rendering techniques including maximum intensity projection and surface rendering. This articles reviews the techniques that are commonly used in CT angiography and key considerations for optimization.

  5. CT Angiography after 20 Years

    PubMed Central

    Rubin, Geoffrey D.; Leipsic, Jonathon; Schoepf, U. Joseph; Fleischmann, Dominik; Napel, Sandy

    2015-01-01

    Through a marriage of spiral computed tomography (CT) and graphical volumetric image processing, CT angiography was born 20 years ago. Fueled by a series of technical innovations in CT and image processing, over the next 5–15 years, CT angiography toppled conventional angiography, the undisputed diagnostic reference standard for vascular disease for the prior 70 years, as the preferred modality for the diagnosis and characterization of most cardiovascular abnormalities. This review recounts the evolution of CT angiography from its development and early challenges to a maturing modality that has provided unique insights into cardiovascular disease characterization and management. Selected clinical challenges, which include acute aortic syndromes, peripheral vascular disease, aortic stent-graft and transcatheter aortic valve assessment, and coronary artery disease, are presented as contrasting examples of how CT angiography is changing our approach to cardiovascular disease diagnosis and management. Finally, the recently introduced capabilities for multispectral imaging, tissue perfusion imaging, and radiation dose reduction through iterative reconstruction are explored with consideration toward the continued refinement and advancement of CT angiography. PMID:24848958

  6. [The development and introduction of a rational system for the protection of the personnel in a large enterprise against attack by blood-sucking arthropods in western Siberia].

    PubMed

    Ermishev, Iu V; Dremova, V P; Stepnov, A P; Semenov, V E

    2000-01-01

    In the middle Ob River Valley (north and moderate taiga), a large number of bloodsucking dipterans (mosquitoes, blackflies, biting midges, horseflies) are recorded during 90-100 days; the activity of Ixodes persulcatus and their attack on humans are notified during 90-115 days. A package of measures that protect petroleum industrial workers from the attacks of bloodsucking insects and ticks includes the use of protective suits, the treatment of premises with insecticides, the use of repellents, and health education. Protective means for workers should be the items included into the list of expenses on safety measures. Work is done on a cost-accounting principle. The introduced system annually shows a high efficiency (95-98%) in protecting large groups of workers in their working places.

  7. Serum IgG antibody response to the protective antigen (PA) of Bacillus anthracis induced by Anthrax Vaccine Adsorbed (AVA) among U.S. military personnel

    PubMed Central

    Singer, Darrell E.; Schneerson, Rachel; Bautista, Christian T.; Rubertone, Mark V.; Robbins, John B.; Taylor, David N.

    2008-01-01

    The seroconversion rates and geometric mean concentrations (GMC) of IgG anti-PA for stored sera from U.S. military personnel immunized 3, 4, and 6 times with the U.S. licensed anthrax vaccine adsorbed were studied. Anti-PA IgG concentrations were measured by ELISA. All 246 vaccinees had low but detectable pre-immunization anti-PA IgG (GMC 1.83μg/mL). Three doses elicited a GMC of 60 μg/mL and a seroconversion rate of 85.3%, four doses elicited a GMC of 157 μg/mL and 67.9% and the sixth of 277 μg/mL and 45.5% respectively. The forth dose elicited 100% seroconversion compared to the pre-immunization level. These results should facilitate comparison between different immunization schedules and new vaccines. PMID:18206278

  8. Magnetic resonance angiography vs. angiography in tetralogy of Fallot.

    PubMed

    Rao, Uppalapati Venkateswara; Vanajakshamma, Velam; Rajasekhar, Durgaprasad; Lakshmi, Amancharla Yadagiri; Reddy, Reddivari Niranjan

    2013-08-01

    : To determine whether gadolinium-enhanced three-dimensional magnetic resonance angiography can provide a noninvasive alternative to diagnostic catheterization for evaluation of pulmonary artery anatomy in tetralogy of Fallot. Thirty-five consecutive patients with tetralogy of Fallot, who attended the cardiology outpatient department between January 2008 and December 2009, were included in the study. There were 21 males and 14 females, with a mean age of 9 ± 4.15 years (range, 3-21 years). Thirty-two patients had tetralogy of Fallot with varying severities of valvular and infundibular stenosis. Three patients had tetralogy of Fallot with pulmonary atresia. All patients underwent both cardiac catheterization with X-ray angiography and 3-dimensional magnetic resonance angiography within one month. Measurements of right and left pulmonary arteries and aortopulmonary collaterals were equal by both methods. There was a good correlation between magnetic resonance angiography and catheterization measurements of branch pulmonary arteries. Gadolinium-enhanced three-dimensional magnetic resonance angiography can be used as a reliable noninvasive alternative to X-ray cineangiography for delineation of pulmonary arterial anatomy in sick infants and young children, obviating the need for catheterization.

  9. Neutron personnel dosimetry

    SciTech Connect

    Griffith, R.V.

    1981-06-16

    The current state-of-the-art in neutron personnel dosimetry is reviewed. Topics covered include dosimetry needs and alternatives, current dosimetry approaches, personnel monitoring devices, calibration strategies, and future developments. (ACR)

  10. Protection of Military Personnel Against Vector-Borne Diseases: A Review of Collaborative Work of the Australian and US Military Over the Last 30 Years.

    PubMed

    Frances, Stephen P; Edstein, Michael D; Debboun, Mustapha; Shanks, G Dennis

    2016-01-01

    Australian and US military medical services have collaborated since World War II to minimize vector-borne diseases such as malaria, dengue, and scrub typhus. In this review, collaboration over the last 30 years is discussed. The collaborative projects and exchange scientist programs have resulted in mutually beneficial outcomes in the fields of drug development and personal protection measures against vector-borne diseases.

  11. Vocabulary for Healthcare Personnel.

    ERIC Educational Resources Information Center

    Falagrady, Teresa

    Developed by educators from the Emily Griffith Opportunity School, this teacher's guide presents a course in health care vocabulary for secretaries, medical records personnel, laboratory assistants, shipping personnel, and patient relations personnel in health care facilities. The course, which should require 10-14 hours of instruction, contains…

  12. Personnel Department Automation.

    ERIC Educational Resources Information Center

    Wilkinson, David

    In 1989, the Austin Independent School District's Office of Research and Evaluation was directed to monitor the automation of personnel information and processes in the district's Department of Personnel. Earlier, a study committee appointed by the Superintendent during the 1988-89 school year identified issues related to Personnel Department…

  13. Evolution of digital angiography systems.

    PubMed

    Brigida, Raffaela; Misciasci, Teresa; Martarelli, Fabiola; Gangitano, Guido; Ottaviani, Pierfrancesco; Rollo, Massimo; Marano, Pasquale

    2003-01-01

    The innovations introduced by digital subtraction angiography in digital radiography are briefly illustrated with the description of its components and functioning. The pros and cons of digital subtraction angiography are analyzed in light of present and future imaging technologies. In particular, among advantages there are: automatic exposure, digital image subtraction, digital post-processing, high number of images per second, possible changes in density and contrast. Among disadvantages there are: small round field of view, geometric distortion at the image periphery, high sensitivity to patient movements, not very high spatial resolution. At present, flat panel detectors represent the most suitable substitutes for digital subtraction angiography, with the introduction of novel solutions for those artifacts which for years have hindered its diagnostic validity. The concept of temporal artifact, reset light and possible future evolutions of this technology that may afford both diagnostic and protectionist advantages, are analyzed.

  14. Your Radiologist Explains Magnetic Resonance Angiography (MRA)

    MedlinePlus

    ... Sponsored by Image/Video Gallery Your Radiologist Explains Magnetic Resonance Angiography (MRA) Transcript Welcome to Radiology Info ... I’d like to talk with you about magnetic resonance angiography, or as it’s commonly known, MRA. ...

  15. LANSCE personnel access control system

    SciTech Connect

    Sturrock, J.C.; Gallegos, F.R.; Hall, M.J.

    1997-01-01

    The Radiation Security System (RSS) at the Los Alamos Neutron Science Center (LANSCE) provides personnel protection from prompt radiation due to accelerated beam. The Personnel Access Control System (PACS) is a component of the RSS that is designed to prevent personnel access to areas where prompt radiation is a hazard. PACS was designed to replace several older personnel safety systems (PSS) with a single modem unified design. Lessons learned from the operation over the last 20 years were incorporated into a redundant sensor, single-point failure safe, fault tolerant, and tamper-resistant system that prevents access to the beam areas by controlling the access keys and beam stoppers. PACS uses a layered philosophy to the physical and electronic design. The most critical assemblies are battery backed up, relay logic circuits; less critical devices use Programmable Logic Controllers (PLCs) for timing functions and communications. Outside reviewers have reviewed the operational safety of the design. The design philosophy, lessons learned, hardware design, software design, operation, and limitations of the device are described.

  16. Mechanical aspects of CO₂ angiography.

    PubMed

    Corazza, Ivan; Rossi, Pier Luca; Feliciani, Giacomo; Pisani, Luca; Zannoli, Sebastiano; Zannoli, Romano

    2013-01-01

    The aim of this paper is to clarify some physical-mechanical aspects involved in the carbon dioxide angiography procedure (CO₂ angiography), with a particular attention to a possible damage of the vascular wall. CO₂ angiography is widely used on patients with iodine intolerance. The injection of a gaseous element, in most cases manually performed, requires a long training period. Automatic systems allow better control of the injection and the study of the mechanical behaviour of the gas. CO₂ injections have been studied by using manual and automatic systems. Pressures, flows and jet shapes have been monitored by using a cardiovascular mock. Photographic images of liquid and gaseous jet have been recorded in different conditions, and the vascular pressure rises during injection have been monitored. The shape of the liquid jet during the catheter washing phase is straight in the catheter direction and there is no jet during gas injection. Gas bubbles are suddenly formed at the catheter's hole and move upwards: buoyancy is the only governing phenomenon and no bubbles fragmentation is detected. The pressure rise in the vessel depends on the injection pressure and volume and in some cases of manual injection it may double the basal vascular pressure values. CO₂ angiography is a powerful and safe procedure which diffusion will certainly increase, although some aspects related to gas injection and chamber filling are not jet well known. The use of an automatic system permits better results, shorter training period and limitation of vascular wall damage risk.

  17. [Personnel requirements of medical radiation physics in radiotherapy in comparison to the current guidelines "radiation protection in medicine" : Special consideration of intensity-modulated radiation therapy].

    PubMed

    Leetz, H-K; Eipper, H H; Gfirtner, H; Schneider, P; Welker, K

    2014-08-01

    In 1994 and 1998 reports on staffing levels in medical radiation physics for radiation therapy were published by the "Deutsche Gesellschaft für Medizinische Physik" (DGMP, German Society for Medical Physics). Because of the technical and methodological progress, changes in recommended qualifications of staff and new governmental regulations, it was necessary to establish new staffing levels. The data were derived from a new survey in clinics. Some of the previously established results from the old reports were adapted to the new conditions by conversion.The staffing requirements were normalized to main components as in the earlier reports resulting in a simple method for calculation of staffing levels. The results were compared with the requirements in the "Richtlinie Strahlenschutz in der Medizin" (guidelines on radiation protection in medicine) and showed satisfactory agreement.

  18. Chaplain Personnel Information Guide

    DTIC Science & Technology

    1991-04-15

    documnt may not be Mased for opem pisbiktao. si it hu been deajed by the appropiate miitay svice ot oervmnent qaeny. CHAPLAIN PERSONNEL INFORMATION GUIDE ...Include Security Classification) Chaplain Personnel Information Guide 12 PERSONAL AUTHOR(S) Chaplain (LTC) Jerry W. Black 13a. TYPE OF REPORT 13b...personnel information guide called the "Red Book." This guide contains information papers that are updated annually on subjects frequently discussed among the

  19. Projecting Personnel Needs.

    ERIC Educational Resources Information Center

    Kelly, Philip T.

    Increased reliance on personnel services is placing school districts' business operations in a no-win situation. This report evaluates methods of student population projection in relation to teacher costs. Educational costs reflect personnel costs in light of a decrease in the number of pupils being served. Increased enrollment projections create…

  20. Student Personnel "Educators."

    ERIC Educational Resources Information Center

    Knott, J. Eugene

    It is suggested that student personnel workers in higher education have comparable responsibilities to their academic counterparts as "educators" in a literal sense. Each contact with a student by personnel officers should be viewed as an opportunity for facilitating learning and growth. As such, a responsibility for being conversant with and open…

  1. Projecting Personnel Needs.

    ERIC Educational Resources Information Center

    Kelly, Philip T.

    Increased reliance on personnel services is placing school districts' business operations in a no-win situation. This report evaluates methods of student population projection in relation to teacher costs. Educational costs reflect personnel costs in light of a decrease in the number of pupils being served. Increased enrollment projections create…

  2. Personnel Management Institutes, 1975.

    ERIC Educational Resources Information Center

    Hinman, Stanley B., Jr., Comp.

    This publication is a compilation of five papers presented at the 1975 Personnel Management Institutes held by the New York State School Boards Association. Although the meeting was intended to provide useful information about personnel matters specifically for school board members and school administrators from New York, much of the content of…

  3. [Preventive vaccinations for medical personnel].

    PubMed

    Kerwat, Klaus; Goedecke, Marcel; Wulf, Hinnerk

    2014-05-01

    Vaccinations are among the most efficient and important preventive medical procedures. Modern vaccines are well tolerated. In Germany there are no longer laws for mandatory vaccinations, either for the general public or for medical personnel. Vaccinations are now merely "officially recommended" by the top health authorities on the basis of recommendations from the Standing Committee on Vaccinations (STIKO) of the Robert Koch Institute (RKI) according to § 20 para 3 of the Protection against Infection law (IfSG). The management of vaccine damage due to officially recommended vaccinations is guaranteed by the Federal States. Whereas vaccinations in childhood are generally considered to be a matter of course, the willingness to accept them decreases markedly with increasing age. In the medical sector vaccinations against, for example, hepatitis B are well accepted while other vaccinations against, for example, whooping cough or influenza are not considered to be so important. The fact that vaccinations, besides offering protection for the medical personnel, may also serve to protect the patients entrusted to medical care from nosocomial infections is often ignored.

  4. Cranial radiation exposure during cerebral catheter angiography.

    PubMed

    Chohan, Muhammad Omar; Sandoval, Daniel; Buchan, Andrew; Murray-Krezan, Cristina; Taylor, Christopher L

    2014-10-01

    Radiation exposure to patients and personnel remains a major concern in the practice of interventional radiology, with minimal literature available on exposure to the forehead and cranium. In this study, we measured cranial radiation exposure to the patient, operating interventional neuroradiologist, and circulating nurse during neuroangiographic procedures. We also report the effectiveness of wearing a 0.5 mm lead equivalent cap as protection against radiation scatter. 24 consecutive adult interventional neuroradiology procedures (six interventional, 18 diagnostic) were prospectively studied for cranial radiation exposures in the patient and personnel. Data were collected using electronic detectors and thermoluminescent dosimeters. Mean fluoroscopy time for diagnostic and interventional procedures was 8.48 (SD 2.79) min and 26.80 (SD 6.57) min, respectively. Mean radiation exposure to the operator's head was 0.08 mSv, as measured on the outside of the 0.5 mm lead equivalent protective headgear. This amounts to around 150 mSv/year, far exceeding the current deterministic threshold for the lens of the eye (ie, 20 mSv/year) in high volume centers performing up to five procedures a day. When compared with doses measured on the inside of the protective skullcap, there was a statistically significant reduction in the amount of radiation received by the operator's skull. Our study suggests that a modern neurointerventional suite is safe when equipped with proper protective shields and personal gear. However, cranial exposure is not completely eliminated with existing protective devices and the addition of a protective skullcap eliminates this exposure to both the operator and support staff. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  5. Angiography of nonneoplastic retroperitoneal masses

    SciTech Connect

    Lois, J.F.; Levin, D.C.; Hooshmand, I.

    1982-01-01

    Although noninvasive imaging modalities can be used to initially detect retroperitoneal masses, angiography is still desirable for several reasons in those cases in which surgery is contemplated. The latter can forewarn the surgeon as to possible hemorrhagic complications in highly vascular lesions. In some cases it can predict the malignant potential of the lesion. Finally, since these masses may derive blood supply from multiple sources, a vascular ''road map'' is provided to the surgeon. The angiographic findings of malignant retroperitoneal tumors are well known, but very little has been published dealing with benign nonneoplastic retroperitoneal masses. We have performed angiography in 11 surgically proven nonneoplastic retroperitoneal masses (9 inflammatory lesions, 2 hematomas). Major arterial or renal displacement occurred in 10. The 2 hematomas and 3 inflammatory lesions were totally avascular; 6 of the 9 inflammatory lesions revealed fine neovascularity and 5 of these 6 had an associated capillary blush. Sources of vascular supply included the lumbar, renal capsular, superior mesenteric, and gastroduodenal arteries. Although angiography is helpful in preoperative evaluation of retroperitoneal masses for the aforementioned reasons, it may be difficult or impossible to differentiate benign from malignant lesions based on the angiographic findings alone.

  6. 75 FR 2821 - Personnel Records

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ...; ] OFFICE OF PERSONNEL MANAGEMENT 5 CFR Part 293 RIN 3206-AM05 Personnel Records AGENCY: U.S. Office of Personnel Management. ACTION: Proposed rule with request for comments. SUMMARY: The U.S. Office of Personnel Management (OPM) is proposing to amend the regulations governing disposition of Official Personnel Folders...

  7. Technical principles of MR angiography methods.

    PubMed

    Ivancevic, Marko K; Geerts, Liesbeth; Weadock, William J; Chenevert, Thomas L

    2009-02-01

    Magnetic resonance provides a wide variety of possibilities for arterial and venous blood vessel imaging in all vascular territories. This article provides a brief review of the technical principles of MR angiography. The first section is dedicated to non-contrast-enhanced angiography techniques and includes several distinct approaches: time-of-flight, phase contrast, triggered angiography non-contrast-enhanced, and balanced steady-state free precession. The second section relates to the contrast-enhanced and time-resolved contrast-enhanced MR angiography methods. The latest technical developments in MR imaging hardware, sequences and software, coil technology, and reconstruction capability allow dynamic MR angiography performance similar to CT angiography, without risks of iodine contrast agent and ionizing radiation exposure.

  8. Radiation dose measurements in coronary CT angiography

    PubMed Central

    Sabarudin, Akmal; Sun, Zhonghua

    2013-01-01

    Coronary computed tomography (CT) angiography is associated with high radiation dose and this has raised serious concerns in the literature. Awareness of various parameters for dose estimates and measurements of coronary CT angiography plays an important role in increasing our understanding of the radiation exposure to patients, thus, contributing to the implementation of dose-saving strategies. This article provides an overview of the radiation dose quantity and its measurement during coronary CT angiography procedures. PMID:24392190

  9. Tetanus antitoxin titres in military personnel.

    PubMed

    Faithfull-Davies, D N; Parry, E S; Sheffield, F; Fieldhouse, P M; Boxall, M A

    1989-10-01

    A study was made of the titres of tetanus antitoxin in the sera of 186 recruits and 886 serving personnel. All were found to have titres of more than 0.01 IU per ml, the titre regarded as sufficient to provide protection from tetanus. The percentage of recruits with tetanus antitoxin titres less than 0.1 IU per ml was significantly greater than the percentage of serving personnel with antitoxin titres less than 0.1 IU per ml and the overall geometric mean titre of the antitoxin in the sera of the recruits was significantly lower than that in the sera of the serving personnel. In the light of the finding that all of the recruits had protective levels of tetanus antitoxin and in view of the imminent withdrawal of TABT Vaccine, alternative strategies for immunisation against tetanus are presented.

  10. 21 CFR 114.10 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Commissioner for giving instruction in food-handling techniques, food-protection principles, personal hygiene... 21 Food and Drugs 2 2011-04-01 2011-04-01 false Personnel. 114.10 Section 114.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR...

  11. Privacy and Personnel: A Time for Action

    ERIC Educational Resources Information Center

    Schein, Virginia E.

    1976-01-01

    Personnel administrators should take active steps to influence the course of legislative activities, as well as examine the internal practices regarding use and dissemination of information. Such actions will both ward off any unnecessary and restrictive legislation and provide privacy protection that will be desirable to both company and…

  12. 32 CFR 17.3 - Commission personnel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) From time to time, it may be appropriate for a Presiding Officer to forward to the Appointing Authority... classified or protected evidence and information is appropriately safeguarded at all times and that only... personnel to facilitate the impartial and expeditious conduct of full and fair trials by military commission. ...

  13. 32 CFR 17.3 - Commission personnel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) From time to time, it may be appropriate for a Presiding Officer to forward to the Appointing Authority... classified or protected evidence and information is appropriately safeguarded at all times and that only... personnel to facilitate the impartial and expeditious conduct of full and fair trials by military commission. ...

  14. 32 CFR 17.3 - Commission personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) From time to time, it may be appropriate for a Presiding Officer to forward to the Appointing Authority... classified or protected evidence and information is appropriately safeguarded at all times and that only... personnel to facilitate the impartial and expeditious conduct of full and fair trials by military commission. ...

  15. Insider protection

    SciTech Connect

    Waddoups, I.G.

    1993-07-01

    The government community is broadly addressing the insider threat. The first section of this paper defines protection approaches and the latter sections present various applicable technology developments. The bulk of the paper discusses technology developments applied to (1) personnel and material tracking and inventory, (2) classified document protection, and (3) protecting security systems. The personnel and material tracking system uses a PC based-host to (1) collect information from proximity tags and material movement sensors, (2) apply rules to this input to assure that the ongoing activity meets the site selectable rules and, (3) forward the results to either an automated inventory system or an alarm system. The document protection system uses a PC network to efficiently and securely control classified material which is stored on write-once-read-mostly optical media. The protection of sensor to multiplexer communications in a security system is emphasized in the discussion of protecting security systems.

  16. Soil contamination standards for protection of personnel

    SciTech Connect

    Rittmann, P.D.

    1998-04-16

    The objective of this report is to recommend soil contamination levels that will ensure that radionuclide intakes by unprotected workers are likely to give internal doses below selected dose limits during the working year. The three internal dose limits are 1, 100, and 500 mrem per year. In addition, photon, beta, and alpha instrument readings are estimated for these soil concentration limits. Two exposure pathways are considered: the first is inhalation of resuspended dust and the second is ingestion of trace amounts of soil. In addition, radioactive decay and ingrowth of progeny during the year of exposure is included. External dose from the soil contamination is not included because monitoring and control of external exposures is carried out independently from internal exposures, which are the focus of this report. The methods used are similar to those used by Carbaugh and Bihl (1993) to set bioassay criteria for such workers.

  17. MSFC Respiratory Protection Services

    NASA Technical Reports Server (NTRS)

    CoVan, James P.

    1999-01-01

    An overview of the Marshall Space Flight Center Respiratory Protection program is provided in this poster display. Respiratory protection personnel, building, facilities, equipment, customers, maintenance and operational activities, and Dynatech fit testing details are described and illustrated.

  18. Digital subtraction angiography in children

    SciTech Connect

    Wagner, M.L.; Singleton, E.B.; Egan, M.E.

    1983-01-01

    Preliminary results with digital subtraction angiography in infants and children have shown this to be an excellent screening procedure and often diagnostic. The examination can be performed satisfactorily on outpatients. Sixty patients have undergone this examination for evaluation of suspected abnormalities of the aortic arch and its branches, intracranial arteries, pulmonary arteries, abdominal aorta and its branches, and peripheral vessels. Adequate sedation is mandatory to prevent motion artifacts. While the literature reports increasing use of central venous catheters for delivery of contrast material, the use of short catheters placed in an antecubital vein is satisfactory for the pediatric patient. Techniques of the procedures are described along with seven appropriate case examples.

  19. 19 CFR 148.90 - Foreign military personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Foreign military personnel. 148.90 Section 148.90 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE... International Organizations and Special Treatment for Returning Individuals § 148.90 Foreign military personnel...

  20. 19 CFR 148.90 - Foreign military personnel.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Foreign military personnel. 148.90 Section 148.90 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE... International Organizations and Special Treatment for Returning Individuals § 148.90 Foreign military personnel...

  1. OCT Angiography Compared to Fluorescein and Indocyanine Green Angiography in Chronic Central Serous Chorioretinopathy.

    PubMed

    Teussink, Michel M; Breukink, Myrte B; van Grinsven, Mark J J P; Hoyng, Carel B; Klevering, B Jeroen; Boon, Camiel J F; de Jong, Eiko K; Theelen, Thomas

    2015-08-01

    Abnormal choroidal blood flow is considered important in the pathogenesis of chronic central serous chorioretinopathy (CSC). Optical coherence tomography (OCT) angiography can image ocular blood cell flow and could thus provide novel insights in disease mechanisms of CSC. We evaluated depth-resolved flow in chronic CSC by OCT angiography compared to fluorescein angiography (FA) and indocyanine green angiography (ICGA). Eighteen eyes with chronic CSC, and six healthy controls, were included. Two human observers annotated areas of staining, hypofluorescence, and hotspots on FA and ICGA, and areas of abnormal flow on OCT angiography. Interobserver agreement in annotating OCT angiography and FA/ICGA was measured by Jaccard indices (JIs). We assessed colocation of flow abnormalities and subretinal fluid visible on OCT, and the distance between hotspots on ICGA from flow abnormalities. Abnormal areas were most frequently annotated in late-phase ICGA and choriocapillary OCT angiography, with moderately high (median JI, 0.74) and moderate (median JI, 0.52) interobserver agreement, respectively. Abnormalities on late-phase ICGA and FA colocated with those on OCT angiography. Aberrant choriocapillary OCT angiography presented as foci of reduced flow surrounded by hyperperfused areas. Hotspots on ICGA were located near hypoperfused spots on OCT angiography (mean distance, 168 μm). Areas with current or former subretinal fluid were colocated with flow abnormalities. On OCT angiography, chronic CSC showed irregular choriocapillary flow patterns, corresponding to ICGA abnormalities. These results suggest focal choriocapillary ischemia with surrounding hyperperfusion that may lead to subretinal fluid leakage.

  2. Indocyanine green fluorescence angiography of the choroid.

    PubMed Central

    Craandijk, A; Van Beek, C A

    1976-01-01

    Indocyanine green fluorescence (ICG) angiography of the choroid gives better visualization of the choroidal vessels than does fluorescein angiography. We found that the detachment of the pigment epithelium seems bigger on ICG than on fluorescein angiograms, and pigmented lesions are more clearly delineated. Images PMID:952809

  3. Comparison of transplenic multidetector CT portography to multidetector CT-angiography in normal dogs.

    PubMed

    Echandi, Rita L; Morandi, Federica; Daniel, William T; Paquette, Janet L; Daniel, Gregory B

    2007-01-01

    We evaluated transplenic injection of iodinated contrast medium for computed tomography (CT) assessment of the portal vasculature. Specific aims were to: (1) establish a protocol for transplenic transplenic CT portography using a 40-row multidetector scanner; (2) compare transplenic CT portography to dual-phase CT angiography in terms of image quality, opacification of the portal system, and contrast enhancement of the portal vasculature and liver; (3) compare personnel exposure during transplenic CT portography and transplenic portal scintigraphy. Seven juvenile dogs underwent transplenic portal scintigraphy, CT angiography, and transplenic CT portography. Transplenic portal scintigraphy and CT angiography were performed using previously established protocols. For transplenic CT portography, a 20- or 22 gauge needle attached to an extension set was placed into the splenic parenchyma using CT guidance. Iodinated contrast medium (175 mg I/ml) was administered, and CT acquisition was started at the time of the injection. Transplenic CT portography was simple, rapid and provided more intense enhancement of the splenic and portal veins, with a lower contrast medium dose (median dose: 525 mg I for transplenic CT portography, 7700 mg I for CT angiography), but caused inconsistent intrahepatic portal branches and parenchymal opacification due to streamlining and streak artifacts. Despite significantly lower attenuation values in the portal vein, CT angiography provided sufficient enhancement for vessel identification and more consistent parenchymal hepatic enhancement. Personnel radiation exposure rate was higher during transplenic CT portography (0.0725 mSv/min) compared with transplenic portal scintigraphy (0.000125 mSv/min). As transplenic CT portography requires an average injection time of 1 min per study; over 650 [corrected] studies must be performed before reaching the maximum permissible whole body dose of 0.05 [corrected] Sv.

  4. Relaxation response in femoral angiography.

    PubMed

    Mandle, C L; Domar, A D; Harrington, D P; Leserman, J; Bozadjian, E M; Friedman, R; Benson, H

    1990-03-01

    Immediately before they underwent femoral angiography, 45 patients were given one of three types of audiotapes: a relaxation response tape recorded for this study, a tape of contemporary instrumental music, or a blank tape. All patients were instructed to listen to their audiotape during the entire angiographic procedure. Each audiotape was played through earphones. Radiologists were not told the group assignment or tape contents. The patients given the audiotape with instructions to elicit the relaxation response (n = 15) experienced significantly less anxiety (P less than .05) and pain (P less than .001) during the procedure, were observed by radiology nurses to exhibit significantly less pain (P less than .001) and anxiety (P less than .001), and requested significantly less fentanyl citrate (P less than .01) and diazepam (P less than .01) than patients given either the music (n = 14) or the blank (n = 16) control audiotapes. Elicitation of the relaxation response is a simple, inexpensive, efficacious, and practical method to reduce pain, anxiety, and medication during femoral angiography and may be useful in other invasive procedures.

  5. A summary of recommendations for occupational radiation protection in interventional cardiology.

    PubMed

    Durán, Ariel; Hian, Sim Kui; Miller, Donald L; Le Heron, John; Padovani, Renato; Vano, Eliseo

    2013-02-01

    The radiation dose received by cardiologists during percutaneous coronary interventions, electrophysiology procedures, and other interventional cardiology procedures can vary by more than an order of magnitude for the same type of procedure and for similar patient doses. There is particular concern regarding occupational dose to the lens of the eye. This document provides recommendations for occupational radiation protection for physicians and other staff in the interventional suite. Simple methods for reducing or minimizing occupational radiation dose include minimizing fluoroscopy time and the number of acquired images; using available patient dose reduction technologies; using good imaging-chain geometry; collimating; avoiding high-scatter areas; using protective shielding; using imaging equipment whose performance is controlled through a quality assurance program; and wearing personal dosimeters so that you know your dose. Effective use of these methods requires both appropriate education and training in radiation protection for all interventional cardiology personnel, and the availability of appropriate protective tools and equipment. Regular review and investigation of personnel monitoring results, accompanied as appropriate by changes in how procedures are performed and equipment used, will ensure continual improvement in the practice of radiation protection in the interventional suite. These recommendations for occupational radiation protection in interventional cardiology and electrophysiology have been endorsed by the Asian Pacific Society of Interventional Cardiology, the European Association of Percutaneous Cardiovascular Interventions, the Latin American Society of Interventional Cardiology, and the Society for Cardiovascular Angiography and Interventions.

  6. PAMTRAK: A personnel and material tracking system

    SciTech Connect

    Anspach, D.A.; Anspach, J.P.; Walters, B.G.; Crain, B. Jr.

    1996-06-01

    There is a need for an automated system for protecting and monitoring sensitive or classified parts and material. Sandia has developed a real-time personnel and material tracking system (PAMTRAK) that has been installed at selected DOE facilities. It safeguards sensitive parts and material by tracking tags worn by personnel and by monitoring sensors attached to the parts or material. It includes remote control and alarm display capabilities and a complementary program in Keyhole to display measured material attributes remotely. This paper describes the design goals, the system components, current installations, and the benefits a site can expect when using PAMTRAK.

  7. Personnel Retention Model Analysis.

    DTIC Science & Technology

    1980-01-01

    Of01 owee)V fOT public ,ei~ rd a;It _Ltributo su~ntd 11T. mgvOUTMu STATEMET (W10 sme inO" spr on.6 as. MI Afra Sme Bw Active Arumy. Personnel...S30. 1 * *0 .(4 s 5 *a j* IJ’) 531: IFR (JJFK)LTR(jjR ) GC To e02 532: RS ( ji j,,GF , 31 1 * SIJ’@jk K 533: *(J J F, )- K 534: 602 IF(ARS5J4

  8. "Geyser" leakage on fluorescein angiography.

    PubMed

    Levy, Jaime; Fagan, Xavier J; Lifshitz, Tova; Schneck, Marina

    2013-11-22

    An 82-year-old patient with diabetes was followed up due to moderate nonproliferative diabetic retinopathy with macular edema in the right eye. Visual acuity was 6/36. Focal macular laser was conducted (A). Three years later, the patient presented with blurry vision in the right eye. Visual acuity was 3/60. Vitreous hemorrhage was observed (B), and neovascularization of the disc was suspected (C). Fluorescein angiography (D, mid venous phase; E-F, recirculation phase) confirmed neovascularization of the disc and depicted a striking vertical leakage. Panretinal photocoagulation was started. Possible explanations for the "geyser" leakage may be either a partial posterior vitreous detachment allowing the fluorescein to track upwards but not elsewhere or a pocket of syneretic vitreous allowing the fluorescein passage in which to diffuse, much like the passage the blood would have taken.

  9. Personnel Management in Libraries.

    ERIC Educational Resources Information Center

    Rubin, Richard, Ed.

    1989-01-01

    Twelve articles discuss personnel management in libraries. Topics covered include building job commitment among employers, collective bargaining, entry-level recruitment, employee turnover, performance evaluation, managing resistance to change, training problems, productivity, employee stress, compensation systems, and the Allerton Park Institute.…

  10. Personnel Management Institutes 1974.

    ERIC Educational Resources Information Center

    Hinman, Stanley B., Jr.

    This report is a compilation of presentations made at the Personnel Management Institutes held by the New York State School Boards Association in the fall of 1974. Included are the following six presentations: "New Laws Affecting School Boards and School Administration," by Bernard T. McGivern; "How to Prepare for Tenure Hearings,…

  11. Personnel Management in Libraries.

    ERIC Educational Resources Information Center

    Rubin, Richard, Ed.

    1989-01-01

    Twelve articles discuss personnel management in libraries. Topics covered include building job commitment among employers, collective bargaining, entry-level recruitment, employee turnover, performance evaluation, managing resistance to change, training problems, productivity, employee stress, compensation systems, and the Allerton Park Institute.…

  12. Evaluating School Personnel Today.

    ERIC Educational Resources Information Center

    Poliakoff, Lorraine L.

    This document, an evaluation of school personnel, is based on a review of the literature on evaluation in the ERIC system. Emphasis is placed on the evaluation of school administrators, teacher evaluation by students, and the teacher's role in evaluation. A 23-item bibliography is included. (MJM)

  13. Personnel Management. Universities.

    ERIC Educational Resources Information Center

    Ohio Board of Regents, Columbus. Management Improvement Program.

    This manual is one of 10 completed in the Ohio Management Improvement Program (MIP) during the 1971-73 biennium. In this project, Ohio's 34 public universities and colleges, in an effort directed and staffed by the Ohio Board of Regents, have developed manuals of management practices, in this case, concerning personnel management. Emphasis in this…

  14. Training of Hydrometeorological Personnel.

    ERIC Educational Resources Information Center

    Hzmaljan, K. A.; And Others

    A working group of the Commission for Hydrometeorology has prepared this report to fill a need for detailed syllabi for instruction in hydrometeorology required by different levels of personnel. This situation has been brought about by the shortage or lack of national cadres of hydrologists in developing countries to undertake comprehensive water…

  15. Digital subtraction angiography of the heart and lungs

    SciTech Connect

    Moodie, D.S.; Yiannikas, J.

    1986-01-01

    This book contains 12 chapters. Some of the chapter titles are: Physical Principles of Cardiac Digital Subtraction Angiography, The Use of Intravenous Digital Subtraction Angiography in Evaluating Patients with Complex Congenital Heart Disease, Exercise Intravenous Digital Subtraction Angiograpny, Cardiomyopathic and Cardiac Neoplastic Disease, Digital Subtraction Angiography in the Catheterization Laboratory, and Cardiac Digital Subtraction Angiography - Future Directions.

  16. Renal angiography with iohexol and metrizoate

    SciTech Connect

    Toernquist, C.; Holtaes, S.

    1984-02-01

    The nephrotoxicity of the ionic contrast medium metrizoate was compared with that of nonionic iohexol when used for renal angiography. Fifteen patients who underwent renal angiography with metrizoate and 15 with iohexol were studied. Serum creatinine level, Cr-51-EDTA clearance, and urine albumin level were recorded before and after angiography. Metrizoate affected renal function, as indicated both by a transient decrease in glomerular filtration rate and by a transient albuminuria. Renal function was unaffected by iohexol. Furthermore, iohexol produced less subjective discomfort than metrizoate. There appeared to be no difference in the quality of the angiograms obtained with the two media.

  17. Whole body postmortem magnetic resonance angiography.

    PubMed

    Ruder, Thomas D; Hatch, Gary M; Ebert, Lars C; Flach, Patricia M; Ross, Steffen; Ampanozi, Garyfalia; Thali, Michael J

    2012-05-01

      Computed tomography (CT) and magnetic resonance (MR) imaging have become important elements of forensic radiology. Whereas the feasibility and potential of CT angiography have long been explored, postmortem MR angiography (PMMRA) has so far been neglected. We tested the feasibility of PMMRA on four adult human cadavers. Technical quality of PMMRA was assessed relative to postmortem CT angiography (PMCTA), separately for each body region. Intra-aortic contrast volumes were calculated on PMCTA and PMMRA with segmentation software. The results showed that technical quality of PMMRA images was equal to PMCTA in 4/4 cases for the head, the heart, and the chest, and in 3/4 cases for the abdomen, and the pelvis. There was a mean decrease in intra-aortic contrast volume from PMCTA to PMMRA of 46%. PMMRA is technically feasible and allows combining the soft tissue detail provided by MR and the information afforded by angiography. © 2011 American Academy of Forensic Sciences.

  18. Low-cost portable fluorescein angiography.

    PubMed

    Maude, Richard J; Plewes, Katherine; Dimock, Joss; Dondorp, Arjen M

    2011-09-01

    Fundus fluorescein angiography has great potential as a unique non-invasive tool to investigate in vivo the microvascular pathogenesis of a wide variety of diseases affecting the central nervous system. However, because it requires a bulky and expensive tabletop retinal camera, it is normally limited to cooperative and alert seated patients in well-resourced settings. Recently completed and ongoing studies of the pathogenesis of severe malaria are using fluorescein angiography to examine in detail the postulated central role of microvascular obstruction. We describe a novel method of fluorescein angiography with a portable retinal camera that can be adapted at very low cost for use in sick patients at the bedside. This method greatly expands the scope of potential studies utilising fluorescein angiography.

  19. Digital Subtraction Angiography In Peripheral Vascular Disease

    NASA Astrophysics Data System (ADS)

    Stieghorst, Michael F.; Crummy, Andrew B.; Lieberman, Robert P.; Turnipseed, William D.; Detmer, Donald E.; Berkoff, Herbert A.

    1981-11-01

    Digital subtraction angiography (DSA) has considerable utility in the evaluation of peripheral vascular disease. It is useful in screening selected patients for vascular disease and its relative ease of performance and good patient tolerance make it ideal for serial examinations of post operative patients. When used in conjunction with intra arterial injections, the technique may show "run-off" vessels which were not demonstrated by standard angiography. This paper presents our experience using DSA to image peripheral vascular problems.

  20. PTSD among military personnel.

    PubMed

    Creamer, Mark; Wade, Darryl; Fletcher, Susan; Forbes, David

    2011-04-01

    Although symptoms characteristic of post-traumatic stress disorder (PTSD) have been noted in military personnel for many centuries, it was not until 1980 that the disorder was formally recognized and became the focus of legitimate study. This paper reviews our current state of knowledge regarding the prevalence and course of this complex condition in past and present members of the defence forces. Although rates vary across conflicts and countries, there is no doubt that PTSD affects substantial numbers of personnel and results in considerable impairment in functioning and quality of life. The paper goes on to discuss recent attempts to build resilience and to promote adjustment following deployment, noting that there is little evidence at this stage upon which to draw firm conclusions. Finally, effective treatment for PTSD is reviewed, with particular reference to the challenges posed by this population in a treatment setting.

  1. Military Personnel Law Deskbook

    DTIC Science & Technology

    2006-08-01

    February 2006). B. Purpose of the Physical Disability Evaluation System (PDES). 1. Personnel Management. a. Effective and Fit Military b. Quality ...discipline, or morale of troops on the base under his command.”). 3. Limitations. There must be some nexus between the authority sought and the effect on...preparing group for and steeling it to violent action). A-7 (2) Military Standard: Speech which undermines the effectiveness of response to command

  2. CT angiography ofthe carotid arteries.

    PubMed

    Prokop, M; Waaijer, A; Kreuzer, S

    2004-01-01

    The introduction of multislice scanning has made CT angiography (CTA) a serious competitor to MR angiography (MRA) as a second line method for the evaluation of the carotid arteries. For optimum display of the morphology of stenoses, it is necessary to apply the thinnest possible section collimation (ideally [symbol: see text] 1.25mm). While the scan range is limited for single slice CTA, it is possible to cover the whole supraaortic circulation from the aortic arch to the intracranial vessels using multislice scanning. Timing of contrast injection is important, however, the injection technique for carotid CTA is more forgiving than for other body regions. Image evaluation is mainly based on axial sections and curved planar reformations (CPR). Other techniques only serve as an adjunct to better be able to demonstrate the findings. Most potential pitfalls can be avoided by using the appropriate technique. CTA has been shown to have a pooled sensitivity of 95% and specificity of 98% for the detection of >70% stenoses, even if only older single-slice techniques are used. Differentiation between lipid, fibrous and calcified plaques may be possible, especially with multislice scanning. Multislice CTA can in addition detect tandem stenoses in the region of the carotid origin from the aorta, the carotid siphon, and the intracranial portion of the carotids. CT is able to provide a comprehensive evaluation of patients with acute stroke by using a combined approach of pre-contrast CT to detect hemorrhage and manifest infarction, CT brain perfusion measurements to differentiate between penumbra and infarct and CTA to detect the occluded vessel as well as potential concomitant carotid abnormalities. In summary, carotid CTA has come of age and can be used to quantify stenoses more precisely than ultrasound, to detect tandem stenoses and for the workup of acute stroke patients. The learning objectives include learning how to chose acquisition parameters for carotid CTA, how to

  3. Ballistic Testing of Personnel Armor Materials

    DTIC Science & Technology

    1975-01-06

    Identity by block number) 7e)scribes methods for evaluating the resistance of personnel armor material. to perforation by attacking projectile fragments... armor vests, face shields , torso shield , leg armor , and protective suits. It is relatively light in weight, usually between 1/4 and 4 pounds per square...quantitative measures of the ability of body armor materials to completely stop or reduce the velocity (therefore lethality) of attacking fragments of various

  4. Personnel Management: Two Year Colleges.

    ERIC Educational Resources Information Center

    Ohio Board of Regents, Columbus. Management Improvement Program.

    This document is one of five manuals designed to improve management practices in Ohio two-year colleges. A chapter on organizing for personnel management discusses basic personnel functions, roles and responsibilities of administrators, and the need for a central statewide office of personnel affairs. A chapter on planning, policies, and…

  5. Models of Personnel Needs Assessment.

    ERIC Educational Resources Information Center

    Mattson, Beverly

    This report presents samples of models and strategies for determining professional development needs of special education personnel. The following areas are covered: definitions of needs and the needs assessment process; personnel needs assessment regulations under the Comprehensive System of Personnel Development, the Individuals with…

  6. A comparison of radiation doses between state-of-the-art multislice CT coronary angiography with iterative reconstruction, multislice CT coronary angiography with standard filtered back-projection and invasive diagnostic coronary angiography.

    PubMed

    Gosling, O; Loader, R; Venables, P; Roobottom, C; Rowles, N; Bellenger, N; Morgan-Hughes, G

    2010-06-01

    To accurately compare the radiation dose between prospectively gated cardiac multidetector CT (with and without iterative reconstruction) and diagnostic invasive coronary angiography using the latest International Commission on Radiological Protection 103 (ICRP) tissue weightings. A retrospective analysis of consecutive patients presenting to a university teaching hospital for investigation of coronary artery disease. Radiation doses for each technique were calculated using computational Monte Carlo modelling of a standard Cristy phantom rather than the application of previously published conversion factors. While these have frequently been used in other studies, they are based on out-dated ICRP tissue weightings (ICRP 60) and are for the whole chest rather than for structures irradiated in cardiac imaging. In order to allow a comparison, doses were calculated and expressed in terms of effective dose in millisieverts (mSv). From a population presenting for angiography within a clinical service, the median radiation dose from cardiac CT with standard filtered back-projection (84 patients, 5.4 mSv) was comparable with the dose from invasive diagnostic coronary angiography (94 patients, 6.3 mSv). The dose for cardiac CT using iterative reconstruction was significantly lower (39 patients, 2.5 mSv). The median effective dose from cardiac CT with standard filtered back-projection was comparable with the effective dose from invasive coronary angiography, even with application of the most contemporary ICRP tissue weightings and use of cardiac specific volumes. Cardiac CT scanning incorporating iterative reconstruction resulted in a significant reduction in the effective dose.

  7. Comparison of CT angiography and digital subtraction angiography in the diagnosis of aortic coarctation.

    PubMed

    Miabi, Zinat; Pourfathi, Hojjat; Midia, Mehran; Midia, Ramin; Parvizi, Rezayat

    2011-01-01

    There are several methods for the diagnosis and evaluation of coarctation of the aorta. Digital Subtraction Angiography (DSA) is the standard detection method, though it entails complications and side-effects. The aim of the present study was to compare Computed Tomography (CT) angiography with DSA for diagnosing aortic coarctation. We performed a cross-sectional study of 15 patients (11 males and four females aged between two and 30 years) referred to Tabriz Shahid Madani Hospital and Imaging Center between August 2005 and February 2006 with suspected aortic coarctation. All patients were subjected to DSA and CT angiography for diagnosis of aortic coarctation. The mean age of the patients was 14.6 years; 11 were male (74.4%) and four (26.6%) were female. The DSA and CT angiography results were comparable in all patients in terms of diagnosis and the detection of complications, particularly cardiovascular complications. However, CT angiography was less time-consuming to perform than DSA (p < 0.0001). In conclusion, CT angiography, comparableto DSA, diagnosed coarctation of aorta in all the patients. However, CT angiography is a non-invasive, cost effective procedure that takes significantly less time to carry out than DSA. Therefore, CT angiography is recommended as an appropriate method for diagnosing the coarctation of aorta.

  8. MD CT Angiography and MR Angiography of Nonatherosclerotic Renal Artery Disease

    SciTech Connect

    Flors, Lucia; Leiva-Salinas, Carlos; Ahmad, Ehab Ali; Norton, Patrick T.; Turba, Ulku C.; Bozlar, Ugur; Hagspiel, Klaus D.

    2011-12-15

    We reviewed the computed tomographic and magnetic resonance angiographic appearances of the various nonatherosclerotic renal artery pathologies. Rapid progress in cross-sectional techniques has allowed computed tomography and magnetic resonance angiography to replace digital subtraction angiography in most circumstances. When state-of-the-art equipment and optimized protocols are used, diagnosing a wide range of nonatherosclerotic pathologies is possible.

  9. PERSONNEL NEUTRON DOSIMETER

    DOEpatents

    Fitzgerald, J.J.; Detwiler, C.G. Jr.

    1960-05-24

    A description is given of a personnel neutron dosimeter capable of indicating the complete spectrum of the neutron dose received as well as the dose for each neutron energy range therein. The device consists of three sets of indium foils supported in an aluminum case. The first set consists of three foils of indium, the second set consists of a similar set of indium foils sandwiched between layers of cadmium, whereas the third set is similar to the second set but is sandwiched between layers of polyethylene. By analysis of all the foils the neutron spectrum and the total dose from neutrons of all energy levels can be ascertained.

  10. 78 FR 29759 - Chemical Facility Anti-Terrorism Standards Personnel Surety Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-21

    ... SECURITY Chemical Facility Anti-Terrorism Standards Personnel Surety Program AGENCY: National Protection...- Terrorism Standards Personnel Surety Program'' for 14 days.\\1\\ This extension of the comment period is...-terrorism Vulnerability Information (CVI),\\2\\ Sensitive Security Information (SSI),\\3\\ or Protected...

  11. Complications with Outpatient Angiography and Interventional Procedures

    SciTech Connect

    Young, Noel; Chi, Ka-Kit; Ajaka, Joe; McKay, Lesa; O'Neill, Diane; Wong, Kai Ping

    2002-03-15

    Purpose: To prospectively identify the complications, and rates of complication, in outpatient angiography and interventional procedures. Methods: There were 1050 consecutive patients, 646 men and 404 women, aged 17-89 years, with a total of 1239 procedures studied in a 2-year period, 1997 to 1999. Results: There were 560 cases of aorto-femoral angiography,resulting in 124 complications (22%), with pain or hematoma in 110.There were 206 cases of neck and cerebral angiography, resulting in 51 complications (25%), with pain and hematoma in 34, transient ischemic attack in 2 and cerebrovascular accident in 1. There were 197 interfentional procedures, with 177 being balloon dilatations, resulting in 68 complications (35%), with 2 having hematomas and 1 having hematoma/abscess requiring active treatment. There were 276 cases having various 'other' procedures (e.g., renal angiography),resulting in 65 complications (24%), with pain and hematoma in 61. No procedure-related death occurred. Eighteen cases (1.5%) had significant complications, with contrast allergy in eight. Conclusion: Outpatient angiography and intervention are relatively safe, with low significant complication rates.

  12. Personal Protective Equipment

    EPA Pesticide Factsheets

    Response personnel must wear the appropriate level of protection whenever near a hazardous release site. Level A is for the greatest exposure potential, and D is the minimum level. Examples range from totally encapsulated suits to hard hats.

  13. Indirect coronary angiography: a feasibility study.

    PubMed

    Wolffgram, T; Krieter, A; Berger, H; Detter, C; Schurr, M O; Braun, M; Schneider, U

    2002-01-01

    The diagnostic method of choice to proof coronary artery disease and to localize stenoses and to judge the stage of the disease is coronary angiography. A new angiographic technique invented by. Wolffgram and Krieter that works without cannulation of the coronary arteries could simplify the interventional procedure. In addition, a technique like this could be used for angiography after CABG surgery directly on the table for quality assurance reasons. This angiography could be performed by the cardiac surgeon without necessarily involving a cardiologist. A feasibility study was successfully done in a cooperation of the Departments. for Cardiology and Cardiac Surgery, Munich University, Steinbeis Transfer Centre for rHealthcare Technologies, Tuebingen and Fraunhofer Technology Development Group (TEG), Stuttgart.

  14. Full-field optical micro-angiography

    NASA Astrophysics Data System (ADS)

    Wang, Mingyi; Zeng, Yaguang; Liang, Xianjun; Lu, Xuanlong; Feng, Guanping; Han, Dingan; Yang, Guojian

    2014-02-01

    We present a detailed description of full-field optical micro-angiography on the basis of frequency-domain laser speckle imaging with intensity fluctuation modulation (LSI-IFM). The imaging approach works based on the instantaneous local intensity fluctuation realized via the combination of short exposure and low sampling rate of a camera and appropriate magnification of a microscope. In vivo experiments on mouse ear verify the theoretical description we made for the imaging mechanism and demonstrate the ability of LSI-IFM as optical micro-angiography. By introducing a fundus camera into LSI-IFM system, our approach has a potential application in label-free retina optical micro-angiography.

  15. Analysis of coronary angiography related psychophysiological responses

    PubMed Central

    2011-01-01

    Background Coronary angiography is an important tool in diagnosis of cardiovascular diseases. However, it is the administration is relatively stressful and emotionally traumatic for the subjects. The aim of this study is to evaluate psychophysiological responses induced by the coronary angiography instead of subjective methods such as a questionnaire. We have also evaluated the influence of the tranquilizer on the psychophysiological responses. Methods Electrocardiography (ECG), Blood Volume Pulse (BVP), and Galvanic Skin Response (GSR) of 34 patients who underwent coronary angiography operation were recorded. Recordings were done at three phases: "1 hour before," "during," and "1 hour after" the coronary angiography test. Total of 5 features obtained from the physiological signals were compared across these three phases. Sixteen of the patients were administered 5 mg of a tranquilizer (Diazepam) before the operation and remaining 18 were not. Results Our results indicate that there is a strong correlation between features (LF/HF, Bk, DN1/DN2, skin conductance level and seg_mean) in terms of reflecting psychophysiological responses. However only DN1/DN2 feature has statistically significant differences between angiography phases (for diazepam: p = 0.0201, for non_diazepam p = 0.0224). We also note that there are statistically significant differences between the diazepam and non-diazepam groups for seg_mean features in "before", "during" and "after" phases (p = 0.0156, 0.0282, and 0.0443, respectively). Conclusions The most intense sympathetic activity is observed in the "during" angiography phase for both of the groups. The obtained features can be used in some clinical studies where generation of the customized/individual diagnoses styles and quantitative evaluation of psychophysiological responses is necessary. PMID:21834993

  16. Enhancing Resilience in Active Duty Military Personnel.

    PubMed

    Crabtree-Nelson, Sonya; DeYoung, Lcdr Peter

    2017-02-01

    A systematic, evidence-based training program to support active duty military personnel through building unit-level resiliency in preparation for anticipated individual times of crisis is needed. Mental health nurses and social workers in the military possess critical training and expertise in identifying and supporting individual and community resilience factors. Their knowledge of the protective aspects of resilience can and should be used to educate all active duty military personnel, ensure military leaders are knowledgeable in how best to support their units, and provide research on the effectiveness of pre-combat resilience training. [Journal of Psychosocial Nursing and Mental Health Services, 55(2), 44-48.]. Copyright 2017, SLACK Incorporated.

  17. Acute Ischemic Stroke: Infarct Core Estimation on CT Angiography Source Images Depends on CT Angiography Protocol

    PubMed Central

    Pulli, Benjamin; Schaefer, Pamela W.; Hakimelahi, Reza; Chaudhry, Zeshan A.; Lev, Michael H.; Hirsch, Joshua A.; González, R. Gilberto

    2012-01-01

    Purpose: To test whether the relationship between acute ischemic infarct size on concurrent computed tomographic (CT) angiography source images and diffusion-weighted (DW) magnetic resonance images is dependent on the parameters of CT angiography acquisition protocols. Materials and Methods: This retrospective study had institutional review board approval, and all records were HIPAA compliant. Data in 100 patients with anterior-circulation acute ischemic stroke and large vessel occlusion who underwent concurrent CT angiography and DW imaging within 9 hours of symptom onset were analyzed. Measured areas of hyperintensity at acute DW imaging were used as the standard of reference for infarct size. Information regarding lesion volumes and CT angiography protocol parameters was collected for each patient. For analysis, patients were divided into two groups on the basis of CT angiography protocol differences (patients in group 1 were imaged with the older, slower protocol). Intermethod agreement for infarct size was evaluated by using the Wilcoxon signed rank test, as well as by using Spearman correlation and Bland-Altman analysis. Multivariate analysis was performed to identify predictors of marked (≥20%) overestimation of infarct size on CT angiography source images. Results: In group 1 (n = 35), median hypoattenuation volumes on CT angiography source images were slightly underestimated compared with DW imaging hyperintensity volumes (33.0 vs 41.6 mL, P = .01; ratio = 0.83), with high correlation (ρ = 0.91). In group 2 (n = 65), median volume on CT angiography source images was much larger than that on DW images (94.8 vs 17.8 mL, P < .0001; ratio = 3.5), with poor correlation (ρ = 0.49). This overestimation on CT angiography source images would have inappropriately excluded from reperfusion therapy 44.4% or 90.3% of patients eligible according to DW imaging criteria on the basis of a 100-mL absolute threshold or a 20% or greater mismatch threshold, respectively

  18. Digital subtraction angiography of the kidney.

    PubMed

    Gattoni, F; Avogadro, A; Baldini, U; Pozzato, C; Bonfanti, M T; Gandini, D; Franch, L; Uslenghi, C

    1988-09-01

    Intravenous and intra-arterial digital subtraction angiography (DSA) was performed in 88 patients: 34 with tumours, 10 with renal trauma, 26 with suspected renovascular hypertension, 6 with vascular impression on the renal pelvis, 8 with nephrolithiasis and 4 with sonographically abnormal kidneys. Venous and arterial DSA always gave diagnostically useful images. Intravenous DSA is valuable in patients with suspected renovascular hypertension or after vascular surgery, percutaneous transluminal angioplasty and transcatheter embolisation. Arterial DSA is preferable to venous DSA in other clinical situations, particularly in the evaluation of renal tumours, and may be recommended in preference to conventional angiography.

  19. Digital subtraction angiography of the thoracic aorta

    SciTech Connect

    Grossman, L.B.; Buonocore, E.; Modic, M.T.; Meaney, T.F.

    1984-02-01

    Forty-three patients with acquired and congenital abnormalities of the thoracic aorta were studied using digital subtraction angiography (DSA) after an intravenous bolus injection of 40 ml of contrast material. Abnormalities studied included coarctation, pseudocoarctation, Marfan syndrome, cervical aorta, double aortic arch, aneurysm, dissection, and tumor. Twenty-four patients also had conventional angiography. DSA was accurate in 95% of cases; in the other 5%, involving patients with acute type I dissection, the coronary arteries could not be seen. The authors concluded that in 92% of their patients, DSA could have replaced the standard aortogram.

  20. Fluorescein and Indocyanine Green Angiography for Uveitis

    PubMed Central

    Herbort, Carl P

    2009-01-01

    In recent years enormous progress has been achieved in investigational procedures for uveitis. Imaging is one such example with the advent of new methods such as indocyanine green angiography, ultrasound biomicroscopy and optical coherence tomography to cite only the most important. This tremendous increase in precision and accuracy in the assessment of the level and degree of inflammation and its monitoring comes in parallel with the development of extremely potent and efficacious therapies. In view of these developments, our whole attitude in the appraisal and investigation of the uveitis patient has to be adapted and correctly reoriented integrating the recent developments and this is no different for ocular angiography. PMID:20404985

  1. Iodide Mumps Complicating Coronary and Carotid Angiography.

    PubMed

    Elder, Alexander M M; Ng, Martin K C

    2017-02-01

    We report a case of asceptic sialadenitis that occurred in a patient with end-stage renal failure following administration of iodinated contrast for coronary and carotid angiography. This is a rare but important complication of iodinated contrast. Early diagnosis of iodide mumps following angiography avoids unnecessary investigations and treatment. In this case the patient underwent haemodialysis with subsequent complete resolution of the sialadenitis, a treatment that has previously not been reported for this condition. Copyright © 2016 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.

  2. Personnel electronic neutron dosimeter

    DOEpatents

    Falk, R.B.; Tyree, W.H.

    1982-03-03

    A personnel electronic dosimeter includes a neutron-proton and neutron-alpha converter for providing an electrical signal having a magnitude proportional to the energy of a detected proton or alpha particle produced from the converter, a pulse generator circuit for generating a pulse having a duration controlled by the weighed effect of the amplitude of the electrical signal, an oscillator enabled by the pulse for generating a train of clock pulses for a time dependent upon the pulse length, a counter for counting the clock pulses, and an indicator for providing a direct reading and aural alarm when the count indicates that the wearer has been exposed to a selected level of neutron dose equivalent.

  3. Personnel electronic neutron dosimeter

    DOEpatents

    Falk, Roger B.; Tyree, William H.

    1984-12-18

    A personnel electronic dosimeter includes a neutron-proton and neutron-alpha converter for providing an electrical signal having a magnitude proportional to the energy of a detected proton or alpha particle produced from the converter, a pulse generator circuit for generating a pulse having a duration controlled by the weighed effect of the amplitude of the electrical signal, an oscillator enabled by the pulse for generating a train of clock pulses for a time dependent upon the pulse length, a counter for counting the clock pulses, and an indicator for providing a direct reading and aural alarm when the count indicates that the wearer has been exposed to a selected level of neutron dose equivalent.

  4. Clinical applications of computed tomography angiography in neuroimaging.

    PubMed

    Dross, Peter; Fisher, Brandon

    2005-06-01

    Recent technical advances in multidetector computed tomography angiography (CTA) now allow for the noninvasive evaluation of the neurovascular tree. In the evaluation of intracranial aneurysms, stroke imaging, and other vascular abnormalities, CTA compares favorably with conventional angiography. Several illustrative case reports are presented and the advantages of CTA over conventional angiography are discussed.

  5. Comparative analysis of fluorescent angiography, computed tomographic angiography and magnetic resonance angiography for planning autologous breast reconstruction

    PubMed Central

    Chae, Michael P.; Hunter-Smith, David J.

    2015-01-01

    Background The high incidence of breast cancer and growing number of breast cancer patients undergoing mastectomy has led to breast reconstruction becoming an important part of holistic treatment for these patients. In planning autologous reconstructions, preoperative assessment of donor site microvascular anatomy with advanced imaging modalities has assisted in the appropriate selection of flap donor site, individual perforators, and lead to an overall improvement in flap outcomes. In this review, we compare the accuracy of fluorescent angiography, computed tomographic angiography (CTA), and magnetic resonance angiography (MRA) and their impact on clinical outcomes. Methods A review of the published English literature dating from 1950 to 2015 using databases, such as PubMed, Medline, Web of Science, and EMBASE was undertaken. Results Fluorescent angiography is technically limited by its inability to evaluate deep-lying perforators and hence, it has a minimal role in the preoperative setting. However, it may be useful intraoperatively in evaluating microvascular anastomotic patency and the mastectomy skin perfusion. CTA is currently widely considered the standard, due to its high accuracy and reliability. Multiple studies have demonstrated its ability to improve clinical outcomes, such as operative length and flap complications. However, concerns surrounding exposure to radiation and nephrotoxic contrast agents exist. MRA has been explored, however despite recent advances, the image quality of MRA is considered inferior to CTA. Conclusions Preoperative imaging is an essential component in planning autologous breast reconstruction. Fluorescent angiography presents minimal role as a preoperative imaging modality, but may be a useful intraoperative adjunct to assess the anastomosis and the mastectomy skin perfusion. Currently, CTA is the gold standard preoperatively. MRA has a role, particularly for women of younger age, iodine allergy, and renal impairment. PMID

  6. Magnetic Resonance Angiography: Principles and Applications.

    PubMed

    Dyke, Lara M

    2013-12-01

    Magnetic Resonance Angiography: Principles and Applications. Carr J. C., Carroll T. J., Springer-Verlag, Heidelberg/New York, 2012. 412 pp. Price $179.00. ISBN 978-1-4419-1685-3 (hardcover). © 2013 American Association of Physicists in Medicine.

  7. Clinical applications of magnetic resonance angiography.

    PubMed

    Glazer, M; McCormack, J; Dross, P

    1992-08-01

    Recent technical advances in magnetic resonance imaging (MRI) now allow for the noninvasive study of blood flow in vessels, or magnetic resonance angiography (MRA). We describe several case reports involving the use of MRA and discuss its advantages in evaluating patients for carotid artery stenosis, intracerebral aneurysms, and arteriovenous malformations (AVMs).

  8. Unexpected Angiography Findings and Effects on Management

    PubMed Central

    Neill, Matthew; Charles, Hearns W; Gross, Jonathan S; Farquharson, Sean; Deipolyi, Amy R

    2016-01-01

    Despite progress in noninvasive imaging with computed tomography and magnetic resonance imaging, conventional angiography still contributes to the diagnostic workup of oncologic and other diseases. Arteriography can reveal tumors not evident on cross-sectional imaging, in addition to defining aberrant or unexpected arterial supply to targeted lesions. This additional and potentially unanticipated information can alter management decisions during interventional procedures. PMID:27688932

  9. Physical Assault of School Personnel

    ERIC Educational Resources Information Center

    Kajs, Lawrence T.; Schumacher, Gary; Vital, Cheryl A.

    2014-01-01

    Physical assault against school personnel is a serious problem, although not highly publicized. This workplace violence can result in debilitating injury to school employees along with major monetary costs. This article looks at legal issues that address physical assault against school personnel as well as the roles professional associations have…

  10. Personnel Practices for Small Colleges.

    ERIC Educational Resources Information Center

    Bouchard, Ronald A.

    Personnel administration in higher education is the focus of this "hands-on, how-to-do-it" guide that provides fundamental materials for developing and maintaining a sound personnel program. Part One (Employment) examines government regulations, employee recruitment and selection, pre-employment inquiries and screening, post-employment process,…

  11. The Dartnell Personnel Director's Handbook.

    ERIC Educational Resources Information Center

    Scheer, Wilbert E.

    This handbook for personnel directors is designed to help improve the acquisition, selection, development, welfare, and general administration and control of business and industrial employees. Overall objectives and functions of personnel management are considered first. Part 2 (Employment) stresses advance planning; recruiting and interviewing;…

  12. Readings in Professional Personnel Assessment.

    ERIC Educational Resources Information Center

    International Personnel Management Association, Washington, DC.

    Thirteen papers are presented that discuss issues in public personnel decision making, specifically in the area of personnel selection. After an introduction by James P. Springer, the following papers are presented: (1) "History of Employment Testing" (Matthew Hale); (2) "Job Families: A Review and Discussion of Their Implications for Personnel…

  13. SCOPE OF PUPIL PERSONNEL SERVICES.

    ERIC Educational Resources Information Center

    ECKERSON, LOUISE OMWAKE; SMITH, HYRUM M.

    PART I OF THIS PAMPHLET DESCRIBES THE INTERPROFESSIONAL RESEARCH COMMISSION ON PUPIL PERSONNEL SERVICES, WHICH WAS STARTED IN 1962 BY THE OFFICE OF EDUCATION AND FINANCED BY THE NATIONAL INSTITUTE OF MENTAL HEALTH FOR A 5-YEAR PROGRAM. THE REST OF THE PAMPHLET DEALS WITH STATISTICS AND SPECIFIC PUPIL PERSONNEL SERVICES. OF THE 60,000…

  14. College Student Personnel Graduate Placement

    ERIC Educational Resources Information Center

    Packwood, William

    1976-01-01

    ACPA's Commission XII surveyed 103 college student personnel training institutions regarding their graduate placement. Graduates were identified according to degree, sex, and race. Percentages of graduates placed, areas within the college student personnel field, types of institutions, and areas of the country were computed. The discussion…

  15. Physical Assault of School Personnel

    ERIC Educational Resources Information Center

    Kajs, Lawrence T.; Schumacher, Gary; Vital, Cheryl A.

    2014-01-01

    Physical assault against school personnel is a serious problem, although not highly publicized. This workplace violence can result in debilitating injury to school employees along with major monetary costs. This article looks at legal issues that address physical assault against school personnel as well as the roles professional associations have…

  16. Coronary CT angiography with prospective ECG-triggering: an effective alternative to invasive coronary angiography

    PubMed Central

    2012-01-01

    Despite the tremendous contributions of coronary CT angiography to coronary artery disease, radiation dose associated with coronary CT angiography has raised serious concerns in the literature, as the risk of developing radiation-induced malignancy is not negligible. Various dose-saving strategies have been implemented, with some of the strategies resulting in significant dose reduction. Of these strategies, prospective ECG-triggering is one of the most effective techniques with resultant effective radiation dose similar to or even lower than that of invasive coronary angiography. Prospective ECG-triggered coronary CT angiography has been reported to have high diagnostic accuracy in the diagnosis of coronary artery disease with image quality comparable to that of retrospective ECG-gating, but with significantly reduced radiation dose. Successful performance of prospective ECG-triggering is determined by strict exclusion criteria and careful patient preparation. The aim of this article is to provide an overview of the diagnostic applications of coronary CT angiography with prospective ECG-triggering with focus on radiation dose reduction. Radiation dose measurements are discussed with aim of allowing accurate dose estimation. Diagnostic value of prospective ECG-triggered coronary CT angiography in patients with different heart rate is discussed. Finally, current status and future directions are highlighted. PMID:24282694

  17. Remotely displaying material attributes and personnel movements

    SciTech Connect

    Anspach, J.P.; Anspach, D.A.; Walters, B.G.; Crain, B.Jr.

    1996-08-01

    The United States Department of Energy (DOE) uses sensitive or classified parts and material that must be protected and accounted for. We believe there is a need for an automated system that can help protect and monitor these parts and material. In response to this need Sandia National Laboratories (SNL) has developed a real-time personnel and material tracking system called PAMTRAK that has been installed at selected DOE facilities. PAMTRAK safeguards sensitive parts and material by tracking tags worn by personnel and by monitoring sensors attached to the parts or material. This paper describes our goals when designing PAMTRAK, the PAMTRAK system components, our current installations, and the benefits a site can expect when using PAMTRAK. So far PAMTRAK has been installed exclusively at government facilities; however, it is also applicable to private industries that need to protect high value assets. Through government programs such as CRADAs, SBIRs, and other mechanisms, the DOE often works with private industry to promote further development and commercialization of national laboratory developed technologies. SNL supports and welcomes partners and new users of PAMTRAK.

  18. The Personnel Launch System

    NASA Technical Reports Server (NTRS)

    Piland, William M.; Talay, Theodore A.; Stone, Howard W.

    1990-01-01

    NASA has begun to study candidate vehicles for manned access to space in support of the Space Station or other future missions requiring on-demand transportation of people to and from earth orbit. One such system, which would be used to complement the present Shuttle or an upgraded version, is the Personnel Launch System (PLS), which is envisioned as a reusable priority vehicle to place people and small payloads into orbit using an experimental launch vehicle. The design of the PLS is based on a Space Station crew changeout requirement whereby eight passengers and two crew members are flown to the station and a like number are returned within a 72 hour mission duration. Experimental and computational aerothermodynamic heating studies have been conducted using a new two-color thermographic technique that involved coating the model with a phosphor that radiates at varying color intensities as a function of temperature when illuminated with UV light. A full-scale model, the HL-20, has been produced and will be used for man-machine research. Three launch vehicle concepts are being considered, a Titan IV, the Advanced Launch System, and a Shuttle equipped with liquid rocket boosters.

  19. Operation United Assistance: infectious disease threats to deployed military personnel.

    PubMed

    Murray, Clinton K; Yun, Heather C; Markelz, Ana Elizabeth; Okulicz, Jason F; Vento, Todd J; Burgess, Timothy H; Cardile, Anthony P; Miller, R Scott

    2015-06-01

    As part of the international response to control the recent Ebola outbreak in West Africa, the Department of Defense has deployed military personnel to train Liberians to manage the disease and build treatment units and a hospital for health care volunteers. These steps have assisted in providing a robust medical system and augment Ebola diagnostic capability within the affected nations. In order to prepare for the deployment of U.S. military personnel, the infectious disease risks of the regions must be determined. This evaluation allows for the establishment of appropriate force health protection posture for personnel while deployed, as well as management plans for illnesses presenting after redeployment. Our objective was to detail the epidemiology and infectious disease risks for military personnel in West Africa, particularly for Liberia, along with lessons learned from prior deployments. Reprint & Copyright © 2015 Association of Military Surgeons of the U.S.

  20. Expert systems for personnel assignment

    SciTech Connect

    Hardee, J.L.; Liepins, G.

    1986-01-01

    In order to reduce stress on assignment personnel (detailers) and ensure maximum fairness and consistency in the Navy's personnel assignment process, The Navy Military Personnel Command (NMPC) has begun to explore the potential use of expert systems to supplement current manual and computerized distribution methods. The Detailer's Assistant expert system is being developed to improve the detailers' ability to satisfy the needs of their constituents and Navy management. An initial prototype of the Detailer's Assistant is now being evaluated. Numerous upgrades and extensions should lead to an operational system in the near future. Further development to a production system will involve additional research in machine learning, intelligent database methods, and cooperating expert systems.

  1. Patients with Life-Threatening Arterial Renal Hemorrhage: CT Angiography and Catheter Angiography with Subsequent Superselective Embolization

    SciTech Connect

    Sommer, C. M. Stampfl, U.; Bellemann, N.; Ramsauer, S.; Loenard, B. M.; Haferkamp, A.; Hallscheidt, P.; Richter, G. M.; Kauczor, H. U.; Radeleff, B. A.

    2010-06-15

    The purpose of this study was to evaluate the technical and clinical success of superselective embolization in patients with life-threatening arterial renal hemorrhage undergoing preinterventional CT angiography. Forty-three patients with clinical signs of life-threatening arterial renal hemorrhage underwent CT angiography and catheter angiography. Superselective embolization was indicated in the case of a positive catheter angiography. Primary study goals were technical and clinical success of superselective embolization. Secondary study goals were CT angiographic and catheter angiographic image findings and clinical follow-up. The mean time interval between CT angiography and catheter angiography was 8.3 {+-} 10.3 h (range, 0.2-34.1 h). Arterial renal hemorrhage was identified with CT angiography in 42 of 43 patients (98%) and catheter angiography in 39 of 43 patients (91%) (overview angiography in 4 of 43 patients [9%], selective angiography in 16 of 43 patients [37%], and superselective angiography in 39 of 43 patients [91%]). Superselective embolization was performed in 39 of 43 patients (91%) and technically successful in 37 of 39 patients (95%). Therefore, coil embolization was performed in 13 of 37 patients (35%), liquid embolization in 9 of 37 patients (24%), particulate embolization in 1 of 37 patients (3%), and a combination in 14 of 37 patients (38%). Clinical failure occurred in 8 of 39 patients (21%) and procedure-related complications in 2 of 39 patients (5%). The 30-day mortality rate was 3%. Hemoglobin decreased significantly prior to intervention (P < 0.001) and increased significantly after intervention (P < 0.005). In conclusion, superselective embolization is effective, reliable, and safe in patients with life-threatening arterial renal hemorrhage. In contrast to overview and selective angiography, only superselective angiography allows reliable detection of arterial renal hemorrhage. Preinterventional CT angiography is excellent for detection

  2. 33 CFR 142.39 - Respiratory protection.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Respiratory protection. (a) Personnel in an atmosphere specified under ANSI Z88.2, requiring the use of....2 for that atmosphere. (b) Before personnel enter an atmosphere specified under ANSI Z88.2 requiring... personnel entering the atmosphere— (1) Follow the procedures stated in section 6 of ANSI Z88.2 concerning...

  3. 33 CFR 142.39 - Respiratory protection.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Respiratory protection. (a) Personnel in an atmosphere specified under ANSI Z88.2, requiring the use of....2 for that atmosphere. (b) Before personnel enter an atmosphere specified under ANSI Z88.2 requiring... personnel entering the atmosphere— (1) Follow the procedures stated in section 6 of ANSI Z88.2 concerning...

  4. 33 CFR 142.39 - Respiratory protection.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Respiratory protection. (a) Personnel in an atmosphere specified under ANSI Z88.2, requiring the use of....2 for that atmosphere. (b) Before personnel enter an atmosphere specified under ANSI Z88.2 requiring... personnel entering the atmosphere— (1) Follow the procedures stated in section 6 of ANSI Z88.2 concerning...

  5. 33 CFR 142.39 - Respiratory protection.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Respiratory protection. (a) Personnel in an atmosphere specified under ANSI Z88.2, requiring the use of....2 for that atmosphere. (b) Before personnel enter an atmosphere specified under ANSI Z88.2 requiring... personnel entering the atmosphere— (1) Follow the procedures stated in section 6 of ANSI Z88.2 concerning...

  6. 33 CFR 142.39 - Respiratory protection.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Respiratory protection. (a) Personnel in an atmosphere specified under ANSI Z88.2, requiring the use of....2 for that atmosphere. (b) Before personnel enter an atmosphere specified under ANSI Z88.2 requiring... personnel entering the atmosphere— (1) Follow the procedures stated in section 6 of ANSI Z88.2 concerning...

  7. Arctic Personnel Effects

    DTIC Science & Technology

    1983-09-16

    toes should be exercised from time to time to keep them warm and to detect any numb or hard areas. The ears should be massaged from time to time with...companion. (4) Do not rewarm by such measures as massage , exposure to open fires, cold water soaks, rubbing with snow. 5 TOP 1-1-003 16 September 1983 (5) Be...available, avoid walking. Protect the frozen part from additional injury but do not attempt to thaw it out by rubbing, bending, or massage . Do not rub with

  8. Angiography of Liver Transplantation Patients 1

    PubMed Central

    Zajko, Albert B.; Bron, Klaus M.; Starzl, Thomas E.; Van Thiel, David H.; Gartner, J. Carlton; Iwatsuki, Shunzaburo; Shaw, Byers W.; Zitelli, Basil J.; Malatack, J. Jeffrey; Urbach, Andrew H.

    2010-01-01

    Over 45 months, 119 angiographic examinations were performed in 95 patients prior to liver transplantation, and 53 examinations in 44 patients after transplantation. Transplantation feasibility was influenced by patency of the portal vein and inferior vena cava. Selective arterial portography, wedged hepatic venography, and transhepatic portography were used to assess the portal vein if sonography or computed tomography was inconclusive. Major indications for angiography after transplantation included early liver failure, sepsis, unexplained elevation of liver enzyme levels, and delayed bile leakage, all of which may be due to hepatic artery thrombosis. Other indications included gastrointestinal tract bleeding, hemobilia, and evaluation of portal vein patency in patients with chronic rejection who were being considered for retransplantation. Normal radiographic features of hepatic artery and portal vein reconstruction are demonstrated. Complications diagnosed using results of angiography included hepatic artery or portal vein stenoses and thromboses and pancreaticoduodenal aneurysms. Intrahepatic arterial narrowing, attenuation, slow flow, and poor filling were seen in five patients with rejection PMID:3901102

  9. Gadofosveset-enhanced magnetic resonance angiography

    PubMed Central

    Goyen, Mathias

    2008-01-01

    Gadofosveset (Vasovist®, Bayer Schering Pharma AG, Berlin/Germany) is the first intravascular contrast agent approved for use with magnetic resonance angiography in the European Union, Switzerland, Turkey, Canada, and Australia. Gadofosveset reversibly binds to albumin providing extended intravascular enhancement compared wth existing extracellular magnetic resonance contrast agents. Prior to approval, gadofosveset underwent extensive testing to evaluate the safety and efficacy of the drug; the clinical trials show that gadofosveset-enhanced magnetic resonance angiography (MRA) is safe and well tolerated in patients with vascular disease and effective for the detection of vascular stenosis and aneurysms gadofosveset has the potential to open new horizons in diagnostic MRA by increasing the spatial resolution and the robustness of MRA examinations and facilitating the examination of multiple vascular beds. PMID:18629367

  10. Prognostic utility of coronary computed tomographic angiography

    PubMed Central

    Otaki, Yuka; Berman, Daniel S.; Min, James K.

    2013-01-01

    Coronary computed tomographic angiography (CCTA) employing CT scanners of 64-detector rows or greater represents a noninvasive method that enables accurate detection and exclusion of anatomically obstructive coronary artery disease (CAD), providing excellent diagnostic information when compared to invasive angiography. There are numerous potential advantages of CCTA beyond simply luminal stenosis assessment including quantification of atherosclerotic plaque volume as well as assessment of plaque composition, extent, location and distribution. In recent years, an array of studies has evaluated the prognostic utility of CCTA findings of CAD for the prediction of major adverse cardiac events, all-cause death and plaque instability. This prognostic information enhances risk stratification and, if properly acted upon, may improve medical therapy and/or behavioral changes that may enhance event-free survival. The goal of the present article is to summarize the current status of the prognostic utility of CCTA findings of CAD. PMID:23809386

  11. Types of diaphragmatic motion during hepatic angiography.

    PubMed

    Katsuda, T; Kuroda, C; Fujita, M

    1997-01-01

    To determine the types and causes of diaphragmatic motion during hepatic angiography, the authors used transarterial cut-film portography (TAP) to study movement of the diaphragm during breath-holding. Thirty-three TAP sequences were studied, and the patients' diaphragmatic motions were classified into four categories according to the distance their diaphragms moved. Results showed that the diaphragm was stationary in 33% of the TAP studies, while perpetual motion occurred in 15% of the studies, early-phase motion occurred in 12% and late-phase motion occurred in 40%. Ten sequences showed diaphragmatic motion of more than 10 mm, with eight sequences showing caudal motion and two showing cranial motion. This article discusses the cause of diaphragmatic motion during breath-holding for hepatic angiography and presents suggestions to reduce motion artifacts during the exam.

  12. Health Hazards of Hospital Personnel

    PubMed Central

    Clever, Linda Hawes

    1981-01-01

    Health care workers historically have faced serious health problems, such as exposure to patients with tuberculosis. For hospital personnel today, a number of hazards exist. These range from toxic substance exposure to safety hazards presented by patients themselves. PMID:7281652

  13. Outplacement: An Established Personnel Function

    ERIC Educational Resources Information Center

    Scherba, John

    1978-01-01

    Every professional personnel department has the basic skills to provide at least minimum outplacement services such as resume preparation, resume typing and reproduction, counseling, and suggestions of job leads. (Author)

  14. 5 CFR 736.103 - Protecting the identity of a source.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 2 2013-01-01 2013-01-01 false Protecting the identity of a source. 736.103 Section 736.103 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) PERSONNEL INVESTIGATIONS Scope § 736.103 Protecting the identity of a source. When a...

  15. 5 CFR 736.103 - Protecting the identity of a source.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 2 2011-01-01 2011-01-01 false Protecting the identity of a source. 736.103 Section 736.103 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) PERSONNEL INVESTIGATIONS Scope § 736.103 Protecting the identity of a source. When a...

  16. 5 CFR 736.103 - Protecting the identity of a source.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 2 2012-01-01 2012-01-01 false Protecting the identity of a source. 736.103 Section 736.103 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) PERSONNEL INVESTIGATIONS Scope § 736.103 Protecting the identity of a source. When a...

  17. 5 CFR 736.103 - Protecting the identity of a source.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Protecting the identity of a source. 736.103 Section 736.103 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) PERSONNEL INVESTIGATIONS Scope § 736.103 Protecting the identity of a source. When...

  18. The Wellbeing of Army Personnel in Dual-Military Marriages

    DTIC Science & Technology

    2014-06-01

    negative relationship between WFC and family satisfaction, suggesting that this buffering effect might not protect the family domain. REFERENCES...Culbertson, S. S., Huffman, A. H., & Connell, A. R. (2012). Assessing gender biases: Development and initial validation of the Gender Role Stereotypes ...personnel: The gender effect . Paper presented at the annual meeting of the American Psychological Association, Washington, DC. Richard, L

  19. [Clinical applications of computed tomography coronary angiography].

    PubMed

    Bastarrika, G; Schoepf, U J

    2009-01-01

    The clinical applications of computed tomography coronary angiography (CTCA) are constantly evolving. Initially employed to quantify coronary artery calcification, multidetector CT also makes it possible to evaluate the anatomy and anatomical variations of coronary circulation, rule out coronary disease, and follow up surgical and percutaneous revascularization procedures. Moreover, CTCA may potentially be useful to quantify ventricular function, characterize non-calcified atherosclerotic plaques, and analyze myocardial perfusion and viability, providing anatomical, morphological, and functional information in patients with suspected ischemic heart disease.

  20. [Angiography and interventional radiology of the kidney].

    PubMed

    Hansmann, J; Richter, G M; Hallscheidt, P; Düx, M; Nöldge, G; Kauffmann, G W

    1999-05-01

    For imaging of renal pathology a broad spectrum of radiologic diagnostic procedures are available which are, sometimes and particularly more recently, competing among each other in their diagnostic yield and relevance. For tumorous lesions ultrasound, computed tomography and magnetic resonance imaging are performed predominantly. Angiography is no longer required with the exception of highly selected cases and in some specific preoperative workup requirements. Until recently, catheter based digital subtraction angiography has been considered as gold standard. However, non-invasive techniques such as CT-angiography and MR-angiography are evolving parallel to their quantum leap of resolutions and readiness to use. Nevertheless, well accepted criteria for quality assessement of these new modalities are still lacking. More comparison studies are urgently warranted. Despite the availability of ultrashort pulse sequences applying the T1 relaxation reduction effect of gadolinium enhanced MR techniques overestimation of renal artery stenosis still poses a substantial problem. Renal intervention implies a variety of procedures such as plain angioplasty, stent placement, embolization of traumatic and both benign and malignant tumors. These methods have emerged over the last two decades from a more experimental nature to a fully accepted treatment option. When renal artery angioplasty is embedded in an aggressive approach including stenting as an adjunct for more complex cases, renal ostial lesions and a well organized follow-up regimen its therapeutic potential for treatment of renal insufficiency, malignant hypertension, for organ preservation bears a very high potential. Provided adequat periinterventional drug regimen restenosis rates may be as low as 10%. In highly selected cases capillary embolization might be used as an alternative to nephrectomy with a similar clinical outcome. Particularly the development of superselective small caliber embolization catheters

  1. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IN GEOGRAPHIC ATROPHY.

    PubMed

    Sacconi, Riccardo; Corbelli, Eleonora; Carnevali, Adriano; Querques, Lea; Bandello, Francesco; Querques, Giuseppe

    2017-10-06

    To analyze choriocapillaris (CC) vessel density (VD) around geographic atrophy (GA) secondary to non-neovascular dry age-related macular degeneration using optical coherence tomography angiography. We compared CC VD surrounding GA margin (500 μm radius) with control CC (outside GA margin) in a consecutive series of GA patients presenting between August 2016 and February 2017 at the Medical Retina and Imaging Unit of University Vita-Salute, IRCCS Ospedale San Raffaele in Milan. Images were obtained through thresholding and binarization. We also compared the CC VD in a sample area of 500 μm × 500 μm surrounding GA margin rated as hyperautofluorescent on fundus autofluorescence to a similar area rated as isoautofluorescent. Fifty eyes of 29 patients (19 women and 10 men; mean age 77 ± 6 years) with mean GA area of 9.43 ± 5.08 mm and mean subfoveal choroidal thickness of 164 ± 73 μm were included. Choriocapillaris VD surrounding GA margin as detected by optical coherence tomography angiography revealed a significant impairment compared with control CC outside GA margin (0.317 ± 0.083 vs. 0.461 ± 0.054, P < 0.001), which was even greater in patients with foveal involvement (P = 0.013). Furthermore, mean VD in hyperautofluorescent areas was significantly lower compared with isoautofluorescent areas (0.242 ± 0.112 vs. 0.327 ± 0.130, P = 0.001). A positive correlation was disclosed between VD surrounding GA margin and subfoveal choroidal thickness (r = 0.332, P = 0.019). Optical coherence tomography angiography discloses CC impairment surrounding GA margin. Such CC impairment at GA margin seems to precede retinal pigment epithelium alterations at fundus autofluorescence. Optical coherence tomography angiography could be a new valuable tool for detecting CC alterations and to evaluate potential therapeutic responses in clinical studies.

  2. Cardiac CT Angiography in Congestive Heart Failure.

    PubMed

    Levine, Avi; Hecht, Harvey S

    2015-06-01

    Cardiac CT angiography has become an important tool for the diagnosis and treatment of congestive heart failure. Differentiation of ischemic from nonischemic cardiomyopathy; evaluation of myocardial perfusion; characterization of hypertrophic cardiomyopathy, left ventricular noncompaction, and arrhythmogenic right ventricular dysplasia; and delineation of congenital heart defects and valvular abnormalities are the primary diagnostic applications. Therapeutic use includes visualization of the coronary venous anatomy for optimal implementation of cardiac resynchronization therapy and evaluation of left ventricular assist devices and transplant vasculopathy.

  3. Electrostatic forces for personnel restraints

    NASA Technical Reports Server (NTRS)

    Ashby, N.; Ciciora, J.; Gardner, R.; Porter, K.

    1977-01-01

    The feasibility of utilizing electrostatic forces for personnel retention devices on exterior spacecraft surfaces was analyzed. The investigation covered: (1) determination of the state of the art; (2) analysis of potential adhesion surfaces; (3) safety considerations for personnel; (4) electromagnetic force field determination and its effect on spacecraft instrumentation; and (5) proposed advances to current technology based on documentation review, analyses, and experimental test data.

  4. [Morbidity in draft military personnel].

    PubMed

    Mukhametzhanov, A M; Smagulov, N K

    2015-01-01

    Military service activity appeared to influence health state of military personnel. Body strain at initial stages of the service, connected with stress situation, affects general body resistance and manifests in higher general morbidity level with transitory disablement that decreases with adaptation. Based on normalized intensity parameters, the equation enables to ease a procedure of evaluation and forecast of transitory disablement morbidity in draft military personnel.

  5. Developments in Decontamination Technologies of Military Personnel and Equipment

    NASA Astrophysics Data System (ADS)

    Sata, Utkarsh R.; Ramkumar, Seshadri S.

    Individual protection is important for warfighters, first responders and civilians to meet the current threat of toxic chemicals and chemical warfare (CW) agents. Within the realm of individual protection, decontamination of warfare agents is not only required on the battlefield but also in laboratory, pilot plants, production and agent destruction sites. It is of high importance to evaluate various decontaminants and decontamination techniques for implementing the best practices in varying scenarios such as decontamination of personnel, sites and sensitive equipment.

  6. Indocyanine green angiography features of malattia leventinese

    PubMed Central

    Souied, E H; Leveziel, N; Querques, G; Darmon, J; Coscas, G; Soubrane, G

    2006-01-01

    Background/aim Malattia leventinese (ML) is an inherited macular degeneration characterised by the presence of small radial drusen. Despite extensive descriptions of this study of the fundus, angiographic features of ML have been inadequately described. The aim is to describe the indocyanine green angiography (ICG) features observed in ML. Methods 10 eyes from five consecutive ML patients (aged 27–44 years) were prospectively included. A complete ophthalmological examination including colour fundus photographs, autofluorescence, fluorescein angiography (FA), and ICG was performed. Results ICG differentiated two types of drusen. Large round aggregated drusen were consistently hypofluorescent in the early phases and presented as hyperfluorescent spots surrounded by halos of hypofluorescence in the late phases. Conversely, small radial drusen were mostly hyperfluorescent in the early phases with decreased fluorescence in the late phases of the ICG sequence. FA also showed differences in staining between the two types of drusen. Conclusions ICG angiography revealed marked differences between the large round and small radial drusen observed in ML. The large central drusen presented with an unusual pustuliform feature on the late phases of the ICG sequence. This distinct feature may be useful in the diagnosis of late stage disease when drusen consolidation could obscure the radial drusen. PMID:16488948

  7. Optical Coherence Tomography Angiography in Retinal Diseases

    PubMed Central

    Chalam, K. V.; Sambhav, Kumar

    2016-01-01

    Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging system that generates volumetric data of retinal and choroidal layers. It has the ability to show both structural and blood flow information. Split-spectrum amplitude-decorrelation angiography (SSADA) algorithm (a vital component of OCTA software) helps to decrease the signal to noise ratio of flow detection thus enhancing visualization of retinal vasculature using motion contrast. Published studies describe potential efficacy for OCTA in the evaluation of common ophthalmologic diseases such as diabetic retinopathy, age related macular degeneration (AMD), retinal vascular occlusions and sickle cell disease. OCTA provides a detailed view of the retinal vasculature, which allows accurate delineation of microvascular abnormalities in diabetic eyes and vascular occlusions. It helps quantify vascular compromise depending upon the severity of diabetic retinopathy. OCTA can also elucidate the presence of choroidal neovascularization (CNV) in wet AMD. In this paper, we review the knowledge, available in English language publications regarding OCTA, and compare it with the conventional angiographic standard, fluorescein angiography (FA). Finally, we summarize its potential applications to retinal vascular diseases. Its current limitations include a relatively small field of view, inability to show leakage, and tendency for image artifacts. Further larger studies will define OCTA's utility in clinical settings and establish if the technology may offer a non-invasive option of visualizing the retinal vasculature, enabling us to decrease morbidity through early detection and intervention in retinal diseases. PMID:27195091

  8. Diagnosis of arterial injuries caused by penetrating trauma to the neck: comparison of helical CT angiography and conventional angiography.

    PubMed

    Múnera, F; Soto, J A; Palacio, D; Velez, S M; Medina, E

    2000-08-01

    To determine the sensitivity and specificity of helical computed tomographic (CT) angiography in the diagnosis of carotid and vertebral arterial injuries caused by penetrating neck trauma. A prospective study was conducted during 24 months in 60 patients with penetrating neck trauma who were referred for conventional angiography owing to clinical suspicion of arterial injury. In the patient population, 146 arteries (77 carotid, 69 vertebral) were studied by means of conventional angiography. In all patients, conventional angiography and helical CT angiography were completed within 6 hours. Two radiologists interpreted helical CT angiographic studies by means of consensus. Conventional angiography was the standard of reference for determining the sensitivity and specificity of helical CT angiography. Conventional angiograms showed arterial injuries in 10 (17%) of 60 patients. Conventional angiographic findings were arterial occlusion (n = 4), arteriovenous fistula (n = 2), pseudoaneurysm (n = 3), pseudoaneurysm with arteriovenous fistula (n = 1), and normal arteries (n = 136). Nine of 10 arterial injuries and all normal arteries were depicted adequately at helical CT angiography. Sensitivity of helical CT angiography was 90%, specificity was 100%, positive predictive value was 100%, and negative predictive value was 98%. The sensitivity and specificity of helical CT angiography are high for detection of major carotid and vertebral arterial injuries resulting from penetrating trauma.

  9. Multislice computerized tomography angiography in the evaluation of intracranial aneurysms: a comparison with intraarterial digital subtraction angiography.

    PubMed

    Wintermark, Max; Uske, Antoine; Chalaron, Marc; Regli, Luca; Maeder, Philippe; Meuli, Reto; Schnyder, Pierre; Binaghi, Stefano

    2003-04-01

    The goal of this study was to assess the diagnostic accuracy of computerized tomography (CT) angiography performed with the aid of multislice technology (MSCT angiography) in the investigation of intracranial aneurysms, by comparing this method with intraarterial digital subtraction (IADS) angiography. Fifty consecutive adult patients, who successively underwent MSCT angiography (four rows) and IADS angiography of intracranial vessels, were prospectively identified. The MSCT angiography studies consisted of 1.25-mm slices, with 0.8-mm reconstruction intervals, a pitch of 0.75, and timing determined by a test bolus. Two neuroradiologists, who were blinded to the initial interpretation of the MSCT angiograms as well as to those of the IADS angiograms, independently reviewed the MSCT angiograms for the detection and characterization of intracranial aneurysms. Forty-nine intracranial aneurysms were identified in 40 patients; 33 of these lesions were responsible for subarachnoid hemorrhage. The sensitivity, specificity, and accuracy of MSCT angiography in the detection of intracranial aneurysms were 94.8, 95.2, and 94.9%, respectively, on a per-aneurysm basis and 99, 95.2, and 98.3%, respectively, on a per-patient basis. Interobserver agreement was 98%. There was an excellent correlation between aneurysm size assessed using MSCT angiography and that determined by IADS angiography (slope = 0.916, r = 0.877, p < 0.001); however, 2 mm stood as the cutoff size below which the sensitivity of MSCT angiography was statistically lower. That method displayed great accuracy in characterizing the morphological characteristics of the aneurysm. Multislice CT angiography is an accurate and robust noninvasive screening test for intracranial aneurysms. It performs better than that reported for single-slice CT angiography. Introduction of eight- and especially 16-row MSCT angiography will provide further progression through thinner slices, a lower pitch, and a purely arterial phase.

  10. Diagnostic yield and accuracy of CT angiography, MR angiography, and digital subtraction angiography for detection of macrovascular causes of intracerebral haemorrhage: prospective, multicentre cohort study

    PubMed Central

    Velthuis, Birgitta K; Rinkel, Gabriël J E; Algra, Ale; de Kort, Gérard A P; Witkamp, Theo D; de Ridder, Johanna C M; van Nieuwenhuizen, Koen M; de Leeuw, Frank-Erik; Schonewille, Wouter J; de Kort, Paul L M; Dippel, Diederik W; Raaymakers, Theodora W M; Hofmeijer, Jeannette; Wermer, Marieke J H; Kerkhoff, Henk; Jellema, Korné; Bronner, Irene M; Remmers, Michel J M; Bienfait, Henri Paul; Witjes, Ron J G M; Greving, Jacoba P; Klijn, Catharina J M

    2015-01-01

    Study question What are the diagnostic yield and accuracy of early computed tomography (CT) angiography followed by magnetic resonance imaging/angiography (MRI/MRA) and digital subtraction angiography (DSA) in patients with non-traumatic intracerebral haemorrhage? Methods This prospective diagnostic study enrolled 298 adults (18-70 years) treated in 22 hospitals in the Netherlands over six years. CT angiography was performed within seven days of haemorrhage. If the result was negative, MRI/MRA was performed four to eight weeks later. DSA was performed when the CT angiography or MRI/MRA results were inconclusive or negative. The main outcome was a macrovascular cause, including arteriovenous malformation, aneurysm, dural arteriovenous fistula, and cavernoma. Three blinded neuroradiologists independently evaluated the images for macrovascular causes of haemorrhage. The reference standard was the best available evidence from all findings during one year’s follow-up. Study answer and limitations A macrovascular cause was identified in 69 patients (23%). 291 patients (98%) underwent CT angiography; 214 with a negative result underwent additional MRI/MRA and 97 with a negative result for both CT angiography and MRI/MRA underwent DSA. Early CT angiography detected 51 macrovascular causes (yield 17%, 95% confidence interval 13% to 22%). CT angiography with MRI/MRA identified two additional macrovascular causes (18%, 14% to 23%) and these modalities combined with DSA another 15 (23%, 18% to 28%). This last extensive strategy failed to detect a cavernoma, which was identified on MRI during follow-up (reference strategy). The positive predictive value of CT angiography was 72% (60% to 82%), of additional MRI/MRA was 35% (14% to 62%), and of additional DSA was 100% (75% to 100%). None of the patients experienced complications with CT angiography or MRI/MRA; 0.6% of patients who underwent DSA experienced permanent sequelae. Not all patients with negative CT angiography and

  11. 41 CFR Appendix C to Part 60 - 250-Review of Personnel Processes

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 1 2010-07-01 2010-07-01 true 250-Review of Personnel Processes C Appendix C to Part 60 Public Contracts and Property Management Other Provisions Relating to... PROTECTED VETERANS Pt. 60-250, App. C Appendix C to Part 60-250—Review of Personnel Processes The...

  12. 41 CFR Appendix C to Part 60 - 250-Review of Personnel Processes

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 41 Public Contracts and Property Management 1 2012-07-01 2009-07-01 true 250-Review of Personnel Processes C Appendix C to Part 60 Public Contracts and Property Management Other Provisions Relating to... PROTECTED VETERANS Pt. 60-250, App. C Appendix C to Part 60-250—Review of Personnel Processes The...

  13. Comparison between indocyanine green angiography and fluorescein angiography in normal cats.

    PubMed

    Hayashi, Miri; Maehara, Seiya; Ito, Yosuke; Yamashita, Kazuto; Kubo, Akira; Nakade, Tetsuya

    2017-07-01

    To study a new approach to indocyanine green (ICG) angiography for contrasting the ocular fundus in cats. Six healthy laboratory cats. Fluorescein (FLUO) and ICG angiography were performed using an infrared-sensitive charged coupled device-equipped fundus camera on sedated cats. At 12.3 ± 3.4 s after ICG administration, the choroidal arteries could be seen extending radially from the optic disk. The choroidal veins became apparent at 16.2 ± 4.1 s alongside the choroidal arteries. Gradual fading of the choroidal vessels began 5.8 ± 1.5 min postdye administration and diffuse fluorescence of the fundus appeared. Diffuse fluorescence of the optic disk faded at about 18.8 ± 2.9 min. Mean arterial blood pressure at 1 and 3 min after ICG administration showed no significant change when compared to pre-administration (P > 0.05). However, 5 min (P = 0.054) and 10 min (P < 0.05) postadministration, a significant drop in blood pressure occurred. The time lapse between FLUO administration and its appearance in the ocular fundus was 15.7 ± 3.8 s. Retinal veins became apparent at 22.0 ± 3.6 s alongside retinal arteries. At 31.2 ± 4.1 s, full venous fluorescence was visualized throughout the entire fundus. While FLUO angiography shows only the retinal vessels, ICG angiography enabled visualization of the choroidal vasculature. ICG angiography provides clear resolution while remaining reliable and simple; thus, a combination of ICG and FLUO angiography shows promise as a diagnostic aid for clinical evaluation of various chorioretinal diseases in cats. © 2016 American College of Veterinary Ophthalmologists.

  14. Dosing of indocyanine-green for intraoperative laser fluorescence angiography in kidney transplantation.

    PubMed

    Rother, Ulrich; Gerken, Andreas L H; Karampinis, Ioannis; Klumpp, Madeline; Regus, Susanne; Meyer, Alexander; Apel, Hendrik; Krämer, Bernhard K; Hilgers, Karl; Lang, Werner; Nowak, Kai

    2017-08-08

    Sufficient blood supply is a crucial factor determining postoperative allograft function in kidney transplantation. Therefore, besides the surgeon's individual impression a method for evaluating the quality of the organ's microperfusion is required. Laser fluorescence angiography with indocyanine-green (ICG) is an emerging tool for this purpose. However, no reproducible quantification of ICG fluorescence has been performed in transplantation so far. This retrospective two-center study was designed to evaluate the dosing of ICG for intraoperative laser fluorescence angiography in kidney transplantation. The Spy Elite(®) system (NOVADAQ, Canada) was employed for quantitative assessment of allograft microperfusion. ICG was administered systemically 5 min after reperfusion applying doses between 0.25 and 0.01 mg ICG per kg body weight. Quantitative assessment was performed with the implemented SPY-Q Software. 57 kidney recipients were included in two centers. The generated curves showing ICG ingress and egress rates were not evaluable due to oversensing when doses exceeded 0.02 mg per kg body weight. Fluorescence angiography with ICG is an emerging tool for the intraoperative quality control and evaluation of microperfusion in kidney transplantation. A dose of 0.02 mg ICG per kg body weight is recommended in order to ensure the quantitative assessment with SPY-Q. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  15. Pedal angiography in peripheral arterial occlusive disease: first-pass i.v. contrast-enhanced MR angiography with blood pool contrast medium versus intraarterial digital subtraction angiography.

    PubMed

    Kos, Sebastian; Reisinger, Clemens; Aschwanden, Markus; Bongartz, Georg M; Jacob, Augustinus L; Bilecen, Deniz

    2009-03-01

    The purpose of this study was to prospectively evaluate first-pass i.v. gadofosveset-enhanced MR angiography in patients with peripheral arterial occlusive disease for visualization of the pedal arteries and stenosis or occlusion of those arteries with intraarterial digital subtraction angiography as the reference standard. Twenty patients with peripheral arterial occlusive disease (nine women, 11 men; age-range 58-83 years) were prospectively enrolled. Gadofosveset first-pass contrast-enhanced MR angiography was performed with a 1.5-T system, a dedicated foot coil, and cuff compression to the calf. Arterial segments were assessed for degree of arterial stenosis, arterial visibility, diagnostic utility, and venous contamination. Detection of vessel stenosis or occlusion was evaluated in comparison with findings at digital subtraction angiography. The unpaired Student's t test was used to test arterial visibility with the two techniques. First-pass MR angiography with gadofosveset had good diagnostic utility in 83.9% of all segments and no venous contamination in 96.8% of all segments. There was no difference between the performance of intraarterial digital subtraction angiography and that of i.v. contrast-enhanced MR angiography in arterial visibility overall (p = 0.245) or in subgroup analysis of surgical arterial bypass targets (p = 0.202). The overall sensitivity, specificity, and accuracy of i.v. gadofosveset-enhanced MR angiography for characterization of clinically significant stenosis and occlusion were 91.4%, 96.1%, and 93.9%. In the subgroup analysis, the sensitivity, specificity, and accuracy were 85.5%, 96.5%, and 92.1%. Gadofosveset-enhanced MR angiography of the pedal arteries in patients with peripheral arterial occlusive disease has arterial visibility equal to that of digital subtraction angiography and facilitates depiction of clinically significant stenosis and occlusion.

  16. The Use of Fluorescein Angiography to Study Oxygen Toxicity

    DTIC Science & Technology

    1976-02-28

    NAVAL RESEA DICAL ÄTORY SUBMARINE BASE, GROTON, CONN. REPORT NUMBER 833 THE USE OF FLUORESCEIN ANGIOGRAPHY TO STUDY OXYGEN TOXICITY by...distribution unlimited PROBLEM To test whether fluorescein angiography can be used as a technique for monitoring an individual’s response to... Angiography to Study Oxygen Toxicity* Reprinted from Annals of Ophthalmology, Volume 9, Number 8, August 1977. Copyright 1977 by Annals of

  17. Non-contrast-enhanced magnetic resonance angiography: techniques and applications.

    PubMed

    Blankholm, Anne Dorte; Ringgaard, Steffen

    2012-01-01

    Non-contrast-enhanced magnetic resonance angiography has gained renewed interest since the discovery of the association between gadolinium-based contrast agents and nephrogenic systemic fibrosis. The following article is an overview of the different magnetic resonance angiography sequences, the technical possibilities and new developments. Clinical options and recent advancements will be highlighted, and recommendations for non-contrast-enhanced magnetic resonance angiography techniques in different anatomical regions will be given. Furthermore, the authors seek to predict the future of non-contrast-enhanced magnetic resonance angiography, with special focus on patients at risk.

  18. 21 CFR 21.32 - Personnel records.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... consult system notices applicable to the agency's personnel records that are published by the Office of... the procedures in § 21.33 and subparts D through F of this part, govern systems of personnel records... Personnel Management, i.e., systems that: (i) The Office of Personnel Management maintains. (ii)...

  19. Noninvasive detection of vertebral artery stenosis: a comparison of contrast-enhanced MR angiography, CT angiography, and ultrasound.

    PubMed

    Khan, Sofia; Rich, Philip; Clifton, Andrew; Markus, Hugh S

    2009-11-01

    Vertebral stenosis is associated with a high risk of recurrent stroke, but noninvasive imaging techniques to identify it have lacked sensitivity. Contrast-enhanced MR angiography and CT angiography have been recently developed and appear to have better sensitivity. However, no prospective studies have compared both of these techniques with ultrasound against the gold standard of intra-arterial angiography in the same group of patients. Forty-six patients were prospectively recruited in whom intra-arterial angiography was being performed. Contrast-enhanced MR angiography, CT angiography, and duplex ultrasound were also performed. Angiographic images were analyzed blinded to patient identity by 2 experienced neuroradiologists. Contrast-enhanced MR angiography had the highest sensitivity and specificity (Radiologist 1, 0.83 and 0.91, respectively; Radiologist 2, 0.89 and 0.87) for detecting >or=50% stenosis. CT angiography had good sensitivity (Radiologist 1, 0.68; Radiologist 2, 0.58) and excellent specificity (Radiologist 1, 0.92; Radiologist 2, 0.93), whereas duplex had low sensitivity (0.44) but excellent specificity (0.95). For vertebral origin stenosis >or=50%, sensitivities were similar for contrast-enhanced MR angiography (Radiologist 1, 0.91; Radiologist 2, 0.82) but relatively higher for CT angiography (Radiologist 1, 0.82; Radiologist 2, 0.82) and duplex (0.67). Contrast-enhanced MR angiography is the most sensitive noninvasive technique to detect vertebral artery stenosis and also has high specificity. CT angiography has good sensitivity and high specificity. In contrast, ultrasound has low sensitivity and will miss many vertebral stenoses.

  20. Major issues in the training of security personnel

    SciTech Connect

    Knauf, W.M.; Robertson, L.P.

    1982-01-01

    The effectiveness of the response component of a physical protection system depends greatly upon the training received by the security personnel. The issues and problems in the area of training which were of greatest concern to the attendees of the 1980 and 1981 INMM sponsored Technical Workshops on Guard Training are discussed. The attendees were training supervisors of managers of security personnel and represented a variety of organizations and companies including DOE facilities, NRC licensees, the military, private security contractors, and governmental agencies. Major categories of concern include: professionalism in security, legal constraints and obligations, physical and psychological testing and standards, governmental requirements, morale and motivation, and tactical training techniques.

  1. 33 CFR 142.36 - Protective clothing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) OUTER CONTINENTAL SHELF ACTIVITIES WORKPLACE SAFETY AND HEALTH Personal Protective Equipment § 142.36 Protective clothing. Personnel in areas where there are flying particles, molten metal, radiant energy,...

  2. 33 CFR 142.36 - Protective clothing.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) OUTER CONTINENTAL SHELF ACTIVITIES WORKPLACE SAFETY AND HEALTH Personal Protective Equipment § 142.36 Protective clothing. Personnel in areas where there are flying particles, molten metal, radiant energy,...

  3. 33 CFR 142.36 - Protective clothing.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) OUTER CONTINENTAL SHELF ACTIVITIES WORKPLACE SAFETY AND HEALTH Personal Protective Equipment § 142.36 Protective clothing. Personnel in areas where there are flying particles, molten metal, radiant energy,...

  4. 33 CFR 142.36 - Protective clothing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) OUTER CONTINENTAL SHELF ACTIVITIES WORKPLACE SAFETY AND HEALTH Personal Protective Equipment § 142.36 Protective clothing. Personnel in areas where there are flying particles, molten metal, radiant energy,...

  5. Analysis of enlarged images using time-of-flight magnetic resonance angiography, computed tomography, and conventional angiography.

    PubMed

    Heo, Yeong-Cheol; Lee, Hae-Kag; Yang, Han-Jun; Cho, Jae-Hwan

    2014-12-01

    This study aimed to assess the accuracy of time-of-flight magnetic resonance angiography, computed tomography, and conventional angiography in depicting the actual length of the blood vessels. Three-dimensional time-of-flight magnetic resonance angiography and computed tomography angiography were performed using a flow phantom model that was 2.11 mm in diameter and had a total area of 0.26 cm(2). After this, volume rendering technique and the maximum intensity projection method as well as two-dimensional digital subtraction angiography and three-dimensional rotational angiography based on conventional angiography were conducted. For three-dimensional time-of-flight magnetic resonance angiography, 8 channel sensitivity encoding (SENSE) head coil for the 3.0 Tesla equipment was used. Fluid was added to the normal saline solution at various rates, such as 11.4, 20.0, 31.4, 40.0, 51.5, 60.0, 71.5, 80.1, 91.5, and 100.1 cm/s using an automatic contrast media injector. Each image was thoroughly examined. After reconstructing the image using the maximum intensity projection method, the length of the conduit in the center of the coronal plane was measured 30 times. After performing computed tomography angiography with the 64-channel CT scanner and 16-channel CT scanner, the images were sent to TeraRecon. Then, the length of the conduit in the center of the coronal plane of each image was measured 30 times after reconstructing the images using volume rendering and maximum intensity projection techniques. For conventional angiography, three-dimensional rotational angiography and two-dimensional digital subtraction angiography were used. Images obtained by three-dimensional rotational angiography were reconstructed and enhanced by 33, 50, and 100 % in the 128 Matrix and the 256 Matrix, respectively on the Xtra Vision workstation. The maximum intensity projection was used for the reconstruction, and the length of the conduit was measured 30 times in the center of the coronal

  6. Safety and efficacy of dual-axis rotational coronary angiography vs. standard coronary angiography.

    PubMed

    Klein, Andrew J; Garcia, Joel A; Hudson, Paul A; Kim, Michael S; Messenger, John C; Casserly, Ivan P; Wink, Onno; Hattler, Brack; Tsai, Thomas T; Chen, S Y James; Hansgen, Adam; Carroll, John D

    2011-05-01

    To determine the safety and efficacy of dual-axis rotational coronary angiography (DARCA) by directly comparing it to standard coronary angiography (SA). Standard coronary angiography (SA) requires numerous fixed static images of the coronary tree and has multiple well-documented limitations. Dual-axis rotational coronary angiography (DARCA) is a new rotational acquisition technique that entails simultaneous LAO/RAO and cranial/caudal gantry movement. This technological advancement obtains numerous unique images of the left or right coronary tree with a single coronary injection. We sought to assess the safety and efficacy of DARCA as well as determine DARCA's adequacy for CAD screening and assessment. Thirty patients underwent SA following by DARCA. Contrast volume, radiation dose (DAP) and procedural time were recorded for each method to assess safety. For DARCA acquisitions, blood pressure (BP), heart rate (HR), symptoms and any arrhythmias were recorded. All angiograms were reviewed for CAD screening adequacy by two independent invasive cardiologists. Compared to SA, use of DARCA was associated with a 51% reduction in contrast, 35% less radiation exposure, and 18% shorter procedural time. Both independent reviewers noted DARCA to be at least equivalent to SA with respect to the ability to screen for CAD. DARCA represents a new angiographic technique which is equivalent in terms of image quality and is associated with less contrast use, radiation exposure, and procedural time than SA. Copyright © 2011 Wiley-Liss, Inc.

  7. Does CT Angiography Matter for Patients with Cervical Spine Injuries?

    PubMed

    Hagedorn, John C; Emery, Sanford E; France, John C; Daffner, Scott D

    2014-06-04

    Cervical injury can be associated with vertebral artery injury. This study was performed to determine the impact of computed tomography (CT) angiography of the head and neck on planning treatment of cervical spine fracture, if these tests were ordered appropriately, and to estimate cost and associated exposure to radiation and contrast medium. This retrospective review included all patients who underwent CT of the cervical spine and CT angiography of the head and neck from January 2010 to August 2011 at one institution. Patients were divided into those with and those without cervical spine fracture seen on CT of the cervical spine. We determined if the CT angiography of the head and neck was positive for vascular injury in the patients with a cervical fracture. Vascular injury treatment and alterations in surgical fracture treatment due to positive CT angiography of the head and neck were recorded. A scan was deemed appropriate if it had been ordered per established institutional protocol. Of the 381 patients who underwent CT angiography of the head and neck, 126 had a cervical injury. Sixteen of the CT angiography studies were appropriately ordered for non-spinal indications, and twenty-three were inappropriately ordered. The CT angiography was positive for one patient for whom the imaging was off protocol and one for whom the indication was non-spinal. Nineteen patients had positive CT angiography of the head and neck; no patient underwent surgical intervention for a vascular lesion. Eleven patients underwent surgical intervention for a cervical fracture; the operative plan was changed because of vascular injury in one case. The CT angiography was positive for eleven of forty-eight patients who had sustained a C2 fracture; this group accounted for eleven of the nineteen positive CT angiography studies. Noncontiguous injuries occurred in nineteen patients; three had positive CT angiography of the head and neck. The approximate charge for the CT angiography was

  8. Discordance between CT and angiography in the PIOPED II study.

    PubMed

    Wittram, Conrad; Waltman, Arthur C; Shepard, Jo-Anne O; Halpern, Elkan; Goodman, Lawrence R

    2007-09-01

    To retrospectively evaluate the causes of discordant computed tomographic (CT)-angiographic readings from the Prospective Investigation of Pulmonary Embolism Diagnosis, or PIOPED, II study. Institutional review board approval was obtained for this HIPAA-compliant study. Of 1036 patients suspected of having pulmonary embolism who were examined with CT, 226 underwent angiography; 206 patients had concordant results and 20 had discordant results according to two independent readers. Of these 20 patients, 10 were men and 10 were women (mean age, 49 years). Among the 20 studies with discordant results, central readers identified seven cases as negative and 13 as positive for pulmonary embolism at CT; these findings were reversed at angiography. Side-by-side comparisons of discordant studies were performed in consensus. The time between CT and angiography and all locations of pulmonary embolism vascular territory were recorded. The McNemar binomial test was used. One patient had false-positive findings at angiography, 13 patients had false-negative findings at angiography, and two patients had false-negative findings at CT. Four patients had true-negative findings at CT; however, findings were positive for thrombus at angiography. The sensitivity for the detection of pulmonary embolism was 87% for CT and 32% for angiography (P=.007). The largest missed thrombus at angiography was subsegmental in eight patients, segmental in two patients, and lobar in three patients; at CT it was subsegmental in two patients. The mean time between CT and angiography was 40 hours+/-21 (standard deviation) (range, 10-97 hours). In the interval between CT and angiography, thrombi can remain the same, resolve, develop, or result from angiography. Copyright (c) RSNA, 2007.

  9. Advances in personnel neutron dosimetry

    SciTech Connect

    Vallario, E.; Faust, L.

    1983-07-01

    A program to assess current personnel neutron dosimeter capabilities and to develop improved personnel neutron dosimeters examines the two types of passive dosimeters in use at DOE facilities: NTA film and TLD-albedo dosimeters. Two new neutron dosimeters under development to overcome some of their problems are combination/track-etch dosimeters and pocket rem-meters. The DOE program is investigating new materials and improved manufacturing processes using the CR-39 polymer and that is nearly free of surface defects. 1 figure.

  10. Multidetector computed tomography angiography of the abdomen.

    PubMed

    Güven, Koray; Acunaş, Bülent

    2004-10-01

    Multidetector computed tomography (MDCT) angiography has provided excellent opportunities for advancement of computed tomography (CT) technology and clinical applications. It has a wide range of applications in the abdomen including vascular pathologies either occlusive or aneurysmal; enables the radiologist to produce vascular mapping that clearly show tumor invasion of vasculature and the relationship of vessels to mass lesions. MDCTA can be used in preoperative planning for hepatic resection, preoperative evaluation and planning for liver transplantation. MDCTA can also provide extremely valuable information in the evaluation of ischemic bowel disease, active Crohn disease, the extent and location of collateral vessels in cirrhosis.

  11. Computed Tomographic Angiography of the Abdominal Aorta.

    PubMed

    Hansen, Neil J

    2016-01-01

    Computed tomographic (CT) angiography (CTA) has become the preferred imaging test of choice for various aortic conditions because of its excellent spatial resolution, rapid image acquisition, and its wide availability. CTA provides a robust tool for planning aortic interventions and diagnosing acute and chronic vascular diseases in the abdomen. CTA is the standard for imaging aneurysms before intervention and evaluating the aorta in the acute setting to assess traumatic injury, dissection, and aneurysm rupture. Knowledge of the imaging features of these disease processes, inflammatory vasculitides, and occlusive atherosclerotic disease is essential for guiding surgical and medical management of patients.

  12. Utilization of cardiac computed tomography angiography and outpatient invasive coronary angiography in Ontario, Canada.

    PubMed

    Roifman, Idan; Rezai, Mohammad R; Wijeysundera, Harindra C; Chow, Benjamin J W; Wright, Graham A; Tu, Jack V

    2015-01-01

    Cardiac computed tomography angiography (coronary CTA) has emerged as a non-invasive method of diagnosing coronary artery disease. The extent of utilization and uptake of this technology since initiation of its funding by the government of Ontario is unknown. The aim of our study was to examine coronary CTA utilization and the rates of elective invasive coronary angiography and revascularization before and after funding initiation. We studied all coronary CTAs performed on adults in Ontario after initiation of funding. We also used an interrupted time series analysis to compare the average monthly rates of invasive angiography and revascularization before and after initiation of funding. There was an initial steep increase in age-and sex-standardized rates of coronary CTA from 5.0 to 11.4/100,000 over the first two quarters after funding initiation. Afterwards, there was a gradual increase in utilization from 11.4 to 17.1/100,000 over two subsequent calendar years. There was a significant reduction in both the mean monthly outpatient invasive coronary angiography (from 20.7 to 19.9 per 100,000 (p = 0.0004)) and revascularization (from 4.9 to 4.4 per 100,000 (p < 0.0001)) rates in the three years following introduction of the coronary CTA billing code as compared to the three prior to its introduction. Since the introduction of coronary CTA funding in Ontario, there has been a steady and controlled increase in its utilization. The increasing use of coronary CTA was associated with a reduction in both the rates of invasive angiography and revascularization. Copyright © 2015 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.

  13. Hemodialysis fistula occlusion: demonstration with 64-slice CT angiography.

    PubMed

    Neyman, Edward G; Johnson, Pamela T; Fishman, Elliot K

    2006-01-01

    The speed and resolution of 64-slice CT have resulted in new applications for CT angiography (CTA) owing to rapid data acquisition during the arterial phase, improved visualization of small vessels, and lengthened anatomic coverage. Extremity CT angiography is one such region. This case report shows the utility of multislice CTA for the evaluation of hemodialysis graft dysfunction.

  14. Optical coherence tomography (OCT) angiography findings in retinal arterial macroaneurysms.

    PubMed

    Alnawaiseh, Maged; Schubert, Friederike; Nelis, Pieter; Wirths, Gabriele; Rosentreter, André; Eter, Nicole

    2016-07-22

    Optical coherence tomography angiography is a novel imaging technique that allows dyeless in vivo visualization of the retinal and choroidal vasculature. The purpose of this study was to describe optical coherence tomography (OCT) angiography findings in patients with retinal arterial macroaneurysms (RAMs). Three eyes of three patients with RAMs were retrospectively included. Fundus photography, OCT, fluorescein angiography (FA), and OCT angiography were performed. The entire imaging data was analyzed in detail. OCT angiography could detect the RAMs noninvasively without dye injection. By simultaneously observing the OCT scans, it was possible to determine the depth of the RAMs in the retina, to detect the exact localization in relation to the main vessel, and to determine the level of blood flow in the RAMs. OCT angiography can clearly visualize RAMs without use of a dye. It also allows layer-specific observation of blood flow in each layer of the RAM. OCT angiography provides additional dynamic information on RAMs, which is not obtained with FA and facilitates a better understanding of its morphology and activity. This information in combination with ICG and fluorescein angiography can help to optimize direct laser treatment.

  15. Fire Protection Program Manual

    SciTech Connect

    Sharry, J A

    2012-05-18

    This manual documents the Lawrence Livermore National Laboratory (LLNL) Fire Protection Program. Department of Energy (DOE) Orders 420.1B, Facility Safety, requires LLNL to have a comprehensive and effective fire protection program that protects LLNL personnel and property, the public and the environment. The manual provides LLNL and its facilities with general information and guidance for meeting DOE 420.1B requirements. The recommended readers for this manual are: fire protection officers, fire protection engineers, fire fighters, facility managers, directorage assurance managers, facility coordinators, and ES and H team members.

  16. Keratoconus in USAF Flying Personnel

    DTIC Science & Technology

    Despite the rigid screening of all categories of rated personnel for the ability to meet stringent visual standards, cases of keratoconus continue to...entity. Aspects of incidence, early diagnosis, serial progression, and treatment are discussed. Two cases of keratoconus which developed after four years

  17. Rights & Responsibilities. Personnel Management Module.

    ERIC Educational Resources Information Center

    Barker, Gale; And Others

    This module on rights and responsibilities is intended to introduce the hospitality manager or supervisor to sound personnel management practices that comply with the law. The material is presented in a self-instructional format in seven sections. At the beginning of each section is a statement of the objectives that will be achieved as a result…

  18. Health Instruction Packages: Dental Personnel.

    ERIC Educational Resources Information Center

    Hayes, Gary E.; And Others

    Text, illustrations, and exercises are utilized in this set of four learning modules designed to instruct non-professional dental personnel in selected job-related skills. The first module, by Gary E. Hayes, describes how to locate the hinge axis point of the jaw, place and secure a bitefork, and perform a facebow transfer. The second module,…

  19. Occupational hazards to hospital personnel

    SciTech Connect

    Patterson, W.B.; Craven, D.E.; Schwartz, D.A.; Nardell, E.A.; Kasmer, J.; Noble, J.

    1985-05-01

    Hospital personnel are subject to various occupational hazards. Awareness of these risks, compliance with basic preventive measures, and adequate resources for interventions are essential components of an occupational health program. Physical, chemical, and radiation hazards; important infectious risks; and psychosocial problems prevalent in hospital workers are reviewed. A rational approach to managing and preventing these problems is offered. 370 references.

  20. Health Instruction Packages: Dental Personnel.

    ERIC Educational Resources Information Center

    Hayes, Gary E.; And Others

    Text, illustrations, and exercises are utilized in this set of four learning modules designed to instruct non-professional dental personnel in selected job-related skills. The first module, by Gary E. Hayes, describes how to locate the hinge axis point of the jaw, place and secure a bitefork, and perform a facebow transfer. The second module,…

  1. Source Book--Nursing Personnel.

    ERIC Educational Resources Information Center

    Spencer, William E.

    This book, organized in six chapters and a bibliography, presents historical and current statistics and references on the supply of nursing personnel within the United States. Chapter 1 includes a discussion of national estimates of the active nurse supply and the distribution of these nurses by field of practice and by academic preparation.…

  2. Source Book--Nursing Personnel.

    ERIC Educational Resources Information Center

    Spencer, William E.

    This book, organized in six chapters and a bibliography, presents historical and current statistics and references on the supply of nursing personnel within the United States. Chapter 1 includes a discussion of national estimates of the active nurse supply and the distribution of these nurses by field of practice and by academic preparation.…

  3. Simulation in Preparing School Personnel.

    ERIC Educational Resources Information Center

    Cruickshank, Donald R.; Broadbent, Frank W.

    The purpose of this state-of-the-art paper is to provide an overview of simulation ("a representation of several variables in the same arrangement as they occur in a particular natural or artificial system"), particularly as it relates to the professional preparation of school personnel. After distinguishing between "simulation" and "simulation…

  4. College Student Personnel Graduate Placement

    ERIC Educational Resources Information Center

    Greer, Richard M.; And Others

    1978-01-01

    This study reports results of ACPA Commission XII's survey of 101 college student personnel training institutions regarding their graduate placement. Graduates were identified according to degree, race, and sex. Percentages of graduates placed, specialty areas, types of institutions, areas of the country, and time and method of placement were…

  5. Image Artifacts in Optical Coherence Angiography

    PubMed Central

    Spaide, Richard F.; Fujimoto, James G.; Waheed, Nadia K.

    2016-01-01

    To describe image artifacts of optical coherence tomography angiography (OCTA) and their underlying causative mechanisms. To establish a common vocabulary for the artifacts observed. Methods The methods by which OCTA images are acquired, generated and displayed are reviewed as are the mechanisms by which each or all of these methods can produce extraneous image information. A common set of terminology is proposed and used. Results OCTA uses motion contrast to image blood flow and thereby images the vasculature without the need for a contrast agent. Artifacts are very common and can arise from the OCT image acquisition, intrinsic characteristics of the eye, eye motion, or image processing and display strategies. OCT image acquisition for angiography takes more time than simple structural scans and necessitates trade-offs in flow resolution, scan quality, and speed. An important set of artifacts are projection artifacts in which images of blood vessels appear at erroneous locations. Image processing used for OCTA can alter vascular appearance through segmentation defects and because of image display strategies can give false impressions of the density and location of vessels. Eye motion leads to discontinuities in displayed data. OCTA artifacts can be detected by interactive evaluation of the images. Conclusions Image artifacts are common, and can lead to incorrect interpretations of OCTA images. Because of the quantity of data available and the potential for artifacts, physician interaction in viewing the image data will be required, much like what happens in modern radiology practice. PMID:26428607

  6. Perfusion Angiography in Acute Ischemic Stroke

    PubMed Central

    Liebeskind, David S.

    2016-01-01

    Visualization and quantification of blood flow are essential for the diagnosis and treatment evaluation of cerebrovascular diseases. For rapid imaging of the cerebrovasculature, digital subtraction angiography (DSA) remains the gold standard as it offers high spatial resolution. This paper lays out a methodological framework, named perfusion angiography, for the quantitative analysis and visualization of blood flow parameters from DSA images. The parameters, including cerebral blood flow (CBF) and cerebral blood volume (CBV), mean transit time (MTT), time-to-peak (TTP), and Tmax, are computed using a bolus tracking method based on the deconvolution of the time-density curve on a pixel-by-pixel basis. The method is tested on 66 acute ischemic stroke patients treated with thrombectomy and/or tissue plasminogen activator (tPA) and also evaluated on an estimation task with known ground truth. This novel imaging tool provides unique insights into flow mechanisms that cannot be observed directly in DSA sequences and might be used to evaluate the impact of endovascular interventions more precisely. PMID:27446232

  7. Angiography with a multifunctional line scanning ophthalmoscope

    NASA Astrophysics Data System (ADS)

    Hammer, Daniel X.; Ferguson, R. Daniel; Patel, Ankit H.; Vazquez, Vanessa; Husain, Deeba

    2012-02-01

    A multifunctional line scanning ophthalmoscope (mLSO) was designed, constructed, and tested on human subjects. The mLSO could sequentially acquire wide-field, confocal, near-infrared reflectance, fluorescein angiography (FA), and indocyanine green angiography (ICGA) retinal images. The system also included a retinal tracker (RT) and a photodynamic therapy laser treatment port. The mLSO was tested in a pilot clinical study on human subjects with and without retinal disease. The instrument exhibited robust retinal tracking and high-contrast line scanning imaging. The FA and ICGA angiograms showed a similar appearance of hyper- and hypo-pigmented disease features and a nearly equivalent resolution of fine capillaries compared to a commercial flood-illumination fundus imager. An mLSO-based platform will enable researchers and clinicians to image human and animal eyes with a variety of modalities and deliver therapeutic beams from a single automated interface. This approach has the potential to improve patient comfort and reduce imaging session times, allowing clinicians to better diagnose, plan, and conduct patient procedures with improved outcomes.

  8. Coronary CT angiography: Beyond morphological stenosis analysis.

    PubMed

    Sun, Zhonghua

    2013-12-26

    Rapid technological developments in computed tomography (CT) imaging technique have made coronary CT angiography an attractive imaging tool in the detection of coronary artery disease. Despite visualization of excellent anatomical details of the coronary lumen changes, coronary CT angiography does not provide hemodynamic changes caused by presence of plaques. Computational fluid dynamics (CFD) is a widely used method in the mechanical engineering field to solve complex problems through analysing fluid flow, heat transfer and associated phenomena by using computer simulations. In recent years, CFD is increasingly used in biomedical research due to high performance hardware and software. CFD techniques have been used to study cardiovascular hemodynamics through simulation tools to assist in predicting the behaviour of circulatory blood flow inside the human body. Blood flow plays a key role in the localization and progression of coronary artery disease. CFD simulation based on 3D luminal reconstructions can be used to analyse the local flow fields and flow profiling due to changes of vascular geometry, thus, identifying risk factors for development of coronary artery disease. The purpose of this article is to provide an overview of the coronary CT-derived CFD applications in coronary artery disease.

  9. Optical coherence tomography based angiography [Invited

    PubMed Central

    Chen, Chieh-Li; Wang, Ruikang K.

    2017-01-01

    Optical coherence tomography (OCT)-based angiography (OCTA) provides in vivo, three-dimensional vascular information by the use of flowing red blood cells as intrinsic contrast agents, enabling the visualization of functional vessel networks within microcirculatory tissue beds non-invasively, without a need of dye injection. Because of these attributes, OCTA has been rapidly translated to clinical ophthalmology within a short period of time in the development. Various OCTA algorithms have been developed to detect the functional micro-vasculatures in vivo by utilizing different components of OCT signals, including phase-signal-based OCTA, intensity-signal-based OCTA and complex-signal-based OCTA. All these algorithms have shown, in one way or another, their clinical values in revealing micro-vasculatures in biological tissues in vivo, identifying abnormal vascular networks or vessel impairment zones in retinal and skin pathologies, detecting vessel patterns and angiogenesis in eyes with age-related macular degeneration and in skin and brain with tumors, and monitoring responses to hypoxia in the brain tissue. The purpose of this paper is to provide a technical oriented overview of the OCTA developments and their potential pre-clinical and clinical applications, and to shed some lights on its future perspectives. Because of its clinical translation to ophthalmology, this review intentionally places a slightly more weight on ophthalmic OCT angiography. PMID:28271003

  10. INDOCYANINE GREEN ANGIOGRAPHY OF PACHYCHOROID PIGMENT EPITHELIOPATHY.

    PubMed

    Ersoz, M Giray; Arf, Serra; Hocaoglu, Mumin; Sayman Muslubas, Isil; Karacorlu, Murat

    2017-07-18

    To compare choroidal hyperpermeability and vessel density between eyes with central serous chorioretinopathy (CSC), those with pachychoroid pigment epitheliopathy (PPE) and those with uncomplicated pachychoroid (UCP). We retrospectively reviewed indocyanine green angiography images of 60 patients with unilateral active CSC who had PPE (36 eyes) or UCP (24 eyes) in their fellow eyes. We used color thresholding of indocyanine green angiography images to determine choroidal vessel density. The mean choroidal thickness of eyes with CSC was greater than that of eyes with PPE or UCP, but this difference was not statistically significant (P = 0.46). There was no significant difference between the PPE (92%) and CSC (93%) groups regarding choroidal hyperpermeability (P = 0.76), but both of these groups had higher choroidal permeability than the UCP group (50%) (both P < 0.001). In 30 (90%) of 33 eyes with PPE who had choroidal hyperpermeability, retinal pigment epithelium alterations were in the region of hyperpermeability. Choroidal vessel density did not differ between the PPE and UCP groups (P = 0.57). Pachychoroid pigment epitheliopathy is forme fruste of CSC. There is no difference between complicated and UCP regarding subfoveal choroidal thickness and choroidal vessel density. The main difference between these groups is choroidal hyperpermeability.

  11. Indocyanine green angiography in posterior uveitis.

    PubMed

    Agrawal, Rupesh V; Biswas, Jyotirmay; Gunasekaran, Dinesh

    2013-04-01

    Literature review for indocyanine green angiography and evaluate the role of indocyanine green angiogram (ICGA) in patients with posterior uveitis seen at a tertiary referral eye care centre. Detailed review of the literature on ICGA was performed. Retrospective review of medical records of patients with posterior uveitis and dual fundus and ICGA was done after institutional board approval. Eighteen patients (26 eyes) had serpiginous choroiditis out of which 12 patients had active choroiditis and six patients had healed choroiditis, six patients (12 eyes) had ampiginous choroiditis, six patients (12 eyes) had acute multifocal posterior placoid pigment epitheliopathy, eight patients (10 eyes) had multifocal choroiditis, four patients (eight eyes) had presumed ocular histoplasmosis syndrome, four patients (eight eyes) had presumed tuberculous choroiditis, two patients (four eyes) had multiple evanescent white dot syndrome and two patients (four eyes) had Vogt Koyanagi Harada (VKH) syndrome. The most characteristic feature noted on ICGA was the presence of different patterns of hypofluorescent dark spots, which were present at different stages of the angiogram. ICGA provides the clinician with a powerful adjunctive tool in choroidal inflammatory disorders. It is not meant to replace already proven modalities such as the fluorescein angiography, but it can provide additional information that is useful in establishing a more definitive diagnosis in inflammatory chorioretinal diseases associated with multiple spots. It still needs to be determined if ICGA can prove to be a follow up parameter to evaluate disease progression.

  12. Indocyanine green angiography in posterior uveitis

    PubMed Central

    Agrawal, Rupesh V; Biswas, Jyotirmay; Gunasekaran, Dinesh

    2013-01-01

    Literature review for indocyanine green angiography and evaluate the role of indocyanine green angiogram (ICGA) in patients with posterior uveitis seen at a tertiary referral eye care centre. Detailed review of the literature on ICGA was performed. Retrospective review of medical records of patients with posterior uveitis and dual fundus and ICGA was done after institutional board approval. Eighteen patients (26 eyes) had serpiginous choroiditis out of which 12 patients had active choroiditis and six patients had healed choroiditis, six patients (12 eyes) had ampiginous choroiditis, six patients (12 eyes) had acute multifocal posterior placoid pigment epitheliopathy, eight patients (10 eyes) had multifocal choroiditis, four patients (eight eyes) had presumed ocular histoplasmosis syndrome, four patients (eight eyes) had presumed tuberculous choroiditis, two patients (four eyes) had multiple evanescent white dot syndrome and two patients (four eyes) had Vogt Koyanagi Harada (VKH) syndrome. The most characteristic feature noted on ICGA was the presence of different patterns of hypofluorescent dark spots, which were present at different stages of the angiogram. ICGA provides the clinician with a powerful adjunctive tool in choroidal inflammatory disorders. It is not meant to replace already proven modalities such as the fluorescein angiography, but it can provide additional information that is useful in establishing a more definitive diagnosis in inflammatory chorioretinal diseases associated with multiple spots. It still needs to be determined if ICGA can prove to be a follow up parameter to evaluate disease progression. PMID:23685486

  13. Intraoperative Fluorescence Vascular Angiography: During Tibial Bypass

    PubMed Central

    Perry, Diana; Bharara, Manish; Armstrong, David G; Mills, Joseph

    2012-01-01

    Preventing amputations in persons with lower extremity complications of diabetes is a complex endeavor, particularly in those with concomitant ischemia and tissue loss. Fluorescence angiography (Novadaq SPY system) may provide a tool for objective evaluations of tissue viability in the diabetic foot, which is an important indicator of the ability of the diabetic ulcer to heal adequately. The SPY system uses a low-power laser coupled with a charge-coupled device camera and indocyanine green (ICG) to sequence perfusion at the surface of the skin. We present an illustrated example of the potential utility of ICG fluorescence angiography (ICGFA) before and after vascular intervention in a high-risk limb. ICGFA appeared to reveal demarcation between viable and nonviable tissue and real-time perfusion, specifically capillary fill. ICGFA clarified the extent of necessary debridement and provided an immediate indication of improvement in regional perfusion status following revascularization. Future studies involving ICGFA may include pre- and postdebridement and closure perfusion, comparison of tissue perfusion pre- and post-endovascular therapy, and lower extremity flap viability. Future works will also address the consistency of results with ICGFA by analyzing a larger cohort of patients being treated by our unit. PMID:22401340

  14. Computed tomography imaging and angiography - principles.

    PubMed

    Kamalian, Shervin; Lev, Michael H; Gupta, Rajiv

    2016-01-01

    The evaluation of patients with diverse neurologic disorders was forever changed in the summer of 1973, when the first commercial computed tomography (CT) scanners were introduced. Until then, the detection and characterization of intracranial or spinal lesions could only be inferred by limited spatial resolution radioisotope scans, or by the patterns of tissue and vascular displacement on invasive pneumoencaphalography and direct carotid puncture catheter arteriography. Even the earliest-generation CT scanners - which required tens of minutes for the acquisition and reconstruction of low-resolution images (128×128 matrix) - could, based on density, noninvasively distinguish infarct, hemorrhage, and other mass lesions with unprecedented accuracy. Iodinated, intravenous contrast added further sensitivity and specificity in regions of blood-brain barrier breakdown. The advent of rapid multidetector row CT scanning in the early 1990s created renewed enthusiasm for CT, with CT angiography largely replacing direct catheter angiography. More recently, iterative reconstruction postprocessing techniques have made possible high spatial resolution, reduced noise, very low radiation dose CT scanning. The speed, spatial resolution, contrast resolution, and low radiation dose capability of present-day scanners have also facilitated dual-energy imaging which, like magnetic resonance imaging, for the first time, has allowed tissue-specific CT imaging characterization of intracranial pathology.

  15. Magnetic Resonance Angiography of the Aorta

    PubMed Central

    Takehara, Yasuo; Yamashita, Shuhei; Sakahara, Harumi; Masui, Takayuki; Isoda, Haruo

    2011-01-01

    Magnetic resonance angiography (MRA) is capable of imaging arteries in the half to whole body by a single acquisition without a nephrotoxic contrast medium, and acquired images can be reconstructed into a specific cross-sectional view in an arbitrary directions. MRA is applicable for vessels non-reachable by a catheter approach, and collateral vessels can be fully visualized. Since MRA is minimally-invasive with no exposure to ionized radiation, it can be repeatedly applied for follow-up. However, there are also disadvantages: the temporal and spatial resolutions are inferior to those of X-ray angiography, and, at present, it cannot be used as a guide for intervention. Moreover, gadolinium administrations may cause NSF in patients who have lost renal function, as a new risk. Accordingly, strict consideration is required for an indication of its application. Development of non-contrast MRA and evaluation of the wall itself may draw more attention in the future. Plaque imaging is being routinely performed nowadays, and the measurement of vascular wall shear stress, which has a close association with arteriosclerosis, may become possible by utilizing the time-resolved phase-contrast method capable of measuring the time-resolved velocity vectors of blood flow throughout the body. (*English Translation of J Jpn Coll Angiol, 2009, 49: 503-516.) PMID:23555465

  16. Gadolinium-Enhanced Magnetic Resonance Angiography for Pulmonary Embolism

    PubMed Central

    Stein, Paul D.; Chenevert, Thomas L.; Fowler, Sarah E.; Goodman, Lawrence R.; Gottschalk, Alexander; Hales, Charles A.; Hull, Russell D.; Jablonski, Kathleen A.; Leeper, Kenneth V.; Naidich, David P.; Sak, Daniel J.; Sostman, H. Dirk; Tapson, Victor F.; Weg, John G.; Woodard, Pamela K.

    2011-01-01

    Background The accuracy of gadolinium-enhanced magnetic resonance pulmonary angiography and magnetic resonance venography for diagnosing pulmonary embolism has not been determined conclusively. Objective To investigate performance characteristics of magnetic resonance angiography, with or without magnetic resonance venography, for diagnosing pulmonary embolism. Design Prospective, multicenter study from 10 April 2006 to 30 September 2008. (ClinicalTrials.gov registration number: NCT00241826) Setting 7 hospitals and their emergency services. Patients 371 adults with diagnosed or excluded pulmonary embolism. Measurements Sensitivity, specificity, and likelihood ratios were measured by comparing independently read magnetic resonance imaging with the reference standard for diagnosing pulmonary embolism. Reference standard diagnosis or exclusion was made by using various tests, including computed tomographic angiography and venography, ventilation–perfusion lung scan, venous ultra-sonography, D-dimer assay, and clinical assessment. Results Magnetic resonance angiography, averaged across centers, was technically inadequate in 25% of patients (92 of 371). The proportion of technically inadequate images ranged from 11% to 52% at various centers. Including patients with technically inadequate images, magnetic resonance angiography identified 57% (59 of 104) with pulmonary embolism. Technically adequate magnetic resonance angiography had a sensitivity of 78% and a specificity of 99%. Technically adequate magnetic resonance angiography and venography had a sensitivity of 92% and a specificity of 96%, but 52% of patients (194 of 370) had technically inadequate results. Limitation A high proportion of patients with suspected embolism was not eligible or declined to participate. Conclusion Magnetic resonance pulmonary angiography should be considered only at centers that routinely perform it well and only for patients for whom standard tests are contraindicated. Magnetic

  17. Laser fluorescence angiography reveals perfusion defects in retrograde cardioplegia.

    PubMed

    Gorki, H; Patel, N C; Balacumaraswami, L; Pillai, J B; Subramanian, V A

    2011-11-01

    Adequate perfusion of the right ventricle with retrograde cardioplegia has always been questioned. However, clinical studies suggested sufficient protection and, up to now, intraoperative assessment of cardioplegia distribution has been difficult. As a pilot study in 14 patients, we used indocyanine green laser fluorescence angiography (ICGLA) to assess vascular and myocardial perfusion of different areas of the right anterior ventricular wall. Regions of interest were analyzed quantitatively using a new software package. ICGLA allowed rapid and reliable visualization of cardioplegic flow and distribution. Retrograde cardioplegia revealed perfusion defects in the territory of the right anterior cardiac veins when compared to antegrade delivery and to areas close to the left anterior descending vein(s), confirmed by quantitative analyses of maximal fluorescence intensity. Five patients were excluded from quantitative analyses. The learning curve, pitfalls, limitations and special image details are described. A larger study is necessary to examine the relevance of perfusion defects to metabolic changes in affected myocytes and to global right ventricular function.

  18. Pulmonary arterial hypertension: an imaging review comparing MR pulmonary angiography and perfusion with multidetector CT angiography

    PubMed Central

    Junqueira, F P; Lima, C M A O; Coutinho, A C; Parente, D B; Bittencourt, L K; Bessa, L G P; Domingues, R C; Marchiori, E

    2012-01-01

    Pulmonary hypertension (PH) is a progressive disease that leads to substantial morbidity and eventual death. Pulmonary multidetector CT angiography (MDCTA), pulmonary MR angiography (MRA) and MR-derived pulmonary perfusion (MRPP) imaging are non-invasive imaging techniques for the differential diagnosis of PH. MDCTA is considered the gold standard for the diagnosis of pulmonary embolism, one of the most common causes of PH. MRA and MRPP are promising techniques that do not require the use of ionising radiation or iodinated contrast material, and can be useful for patients for whom such material cannot be used. This review compares the imaging aspects of pulmonary MRA and 64-row MDCTA in patients with chronic thromboembolic or idiopathic PH. PMID:22932061

  19. Fluorescein Angiography Versus Optical Coherence Tomography Angiography in Macular Telangiectasia Type I Treated With Bevacizumab Therapy.

    PubMed

    Yannuzzi, Nicolas A; Gregori, Ninel Z; Roisman, Luiz; Gupta, Nisha; Goldhagen, Brian E; Goldhardt, Raquel

    2017-03-01

    This is a report of microvascular changes seen on fluorescein angiography (FA) and optical coherence tomography angiography (OCTA) in a 47-year-old man with macular telangiectasia Type 1 (MacTel1) after a 7-year bevacizumab (Avastin; Genentech, South San Francisco, CA) treatment course. OCTA allowed for clear visualization of most telangiectasias and aneurysms in the deep capillary plexus, with only few microvascular dilatations in the superficial plexus. In addition, areas of capillary dropout in the superficial and deep vascular plexa located near telangiectasias were documented on OCTA. Serial FA demonstrated reduced number of aneurysms and telangiectasias at the 7-year mark compared to baseline. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:263-266.]. Copyright 2017, SLACK Incorporated.

  20. Pulmonary arterial hypertension: an imaging review comparing MR pulmonary angiography and perfusion with multidetector CT angiography.

    PubMed

    Junqueira, F P; Lima, C M A O; Coutinho, A C; Parente, D B; Bittencourt, L K; Bessa, L G P; Domingues, R C; Marchiori, E

    2012-11-01

    Pulmonary hypertension (PH) is a progressive disease that leads to substantial morbidity and eventual death. Pulmonary multidetector CT angiography (MDCTA), pulmonary MR angiography (MRA) and MR-derived pulmonary perfusion (MRPP) imaging are non-invasive imaging techniques for the differential diagnosis of PH. MDCTA is considered the gold standard for the diagnosis of pulmonary embolism, one of the most common causes of PH. MRA and MRPP are promising techniques that do not require the use of ionising radiation or iodinated contrast material, and can be useful for patients for whom such material cannot be used. This review compares the imaging aspects of pulmonary MRA and 64-row MDCTA in patients with chronic thromboembolic or idiopathic PH.

  1. Mandatory influenza vaccination for all healthcare personnel: a review on justification, implementation and effectiveness.

    PubMed

    Wang, Tiffany L; Jing, Ling; Bocchini, Joseph A

    2017-10-01

    As healthcare-associated influenza is a serious public health concern, this review examines legal and ethical arguments supporting mandatory influenza vaccination policies for healthcare personnel, implementation issues and evidence of effectiveness. Spread of influenza from healthcare personnel to patients can result in severe harm or death. Although most healthcare personnel believe that they should be vaccinated against seasonal influenza, the Centers for Disease Control and Prevention (CDC) report that only 79% of personnel were vaccinated during the 2015-2016 season. Vaccination rates were as low as 44.9% in institutions that did not promote or offer the vaccine, compared with rates of more than 90% in institutions with mandatory vaccination policies. Policies that mandate influenza vaccination for healthcare personnel have legal and ethical justifications. Implementing such policies require multipronged approaches that include education efforts, easy access to vaccines, vaccine promotion, leadership support and consistent communication emphasizing patient safety. Mandatory influenza vaccination for healthcare personnel is a necessary step in protecting patients. Patients who interact with healthcare personnel are often at an elevated risk of complications from influenza. Vaccination is the best available strategy for protecting against influenza and evidence shows that institutional policies and state laws can effectively increase healthcare personnel vaccination rates, decreasing the risk of transmission in healthcare settings. There are legal and ethical precedents for institutional mandatory influenza policies and state laws, although successful implementation requires addressing both administrative and attitudinal barriers.

  2. Personnel Safety for Future Magnetic Fusion Power Plants

    SciTech Connect

    Lee Cadwallader

    2009-07-01

    The safety of personnel at existing fusion experiments is an important concern that requires diligence. Looking to the future, fusion experiments will continue to increase in power and operating time until steady state power plants are achieved; this causes increased concern for personnel safety. This paper addresses four important aspects of personnel safety in the present and extrapolates these aspects to future power plants. The four aspects are personnel exposure to ionizing radiation, chemicals, magnetic fields, and radiofrequency (RF) energy. Ionizing radiation safety is treated well for present and near-term experiments by the use of proven techniques from other nuclear endeavors. There is documentation that suggests decreasing the annual ionizing radiation exposure limits that have remained constant for several decades. Many chemicals are used in fusion research, for parts cleaning, as use as coolants, cooling water cleanliness control, lubrication, and other needs. In present fusion experiments, a typical chemical laboratory safety program, such as those instituted in most industrialized countries, is effective in protecting personnel from chemical exposures. As fusion facilities grow in complexity, the chemical safety program must transition from a laboratory scale to an industrial scale program that addresses chemical use in larger quantity. It is also noted that allowable chemical exposure concentrations for workers have decreased over time and, in some cases, now pose more stringent exposure limits than those for ionizing radiation. Allowable chemical exposure concentrations have been the fastest changing occupational exposure values in the last thirty years. The trend of more restrictive chemical exposure regulations is expected to continue into the future. Other issues of safety importance are magnetic field exposure and RF energy exposure. Magnetic field exposure limits are consensus values adopted as best practices for worker safety; a typical

  3. The potential for neurovascular intravenous angiography using K-edge digital subtraction angiography

    NASA Astrophysics Data System (ADS)

    Schültke, E.; Fiedler, S.; Kelly, M.; Griebel, R.; Juurlink, B.; LeDuc, G.; Estève, F.; Le Bas, J.-F.; Renier, M.; Nemoz, C.; Meguro, K.

    2005-08-01

    Background: Catheterization of small-caliber blood vessels in the central nervous system can be extremely challenging. Alternatively, intravenous (i.v.) administration of contrast agent is minimally invasive and therefore carries a much lower risk for the patient. With conventional X-ray equipment, volumes of contrast agent that could be safely administered to the patient do not allow acquisition of high-quality images after i.v. injection, because the contrast bolus is extremely diluted by passage through the heart. However, synchrotron-based digital K-edge subtraction angiography does allow acquisition of high-quality images after i.v. administration of relatively small doses of contrast agent. Materials and methods: Eight adult male New Zealand rabbits were used for our experiments. Animals were submitted to both angiography with conventional X-ray equipment and synchrotron-based digital subtraction angiography. Results: With conventional X-ray equipment, no contrast was seen in either cerebral or spinal blood vessels after i.v. injection of iodinated contrast agent. However, using K-edge digital subtraction angiography, as little as 1 ml iodinated contrast agent, when administered as i.v. bolus, yielded images of small-caliber blood vessels in the central nervous system (both brain and spinal cord). Conclusions: If it would be possible to image blood vessels of the same diameter in the central nervous system of human patients, the synchrotron-based technique could yield high-quality images at a significantly lower risk for the patient than conventional X-ray imaging. Images could be acquired where catheterization of feeding blood vessels has proven impossible.

  4. Type 1 Choroidal Neovascularization Lesion Size: Indocyanine Green Angiography Versus Optical Coherence Tomography Angiography.

    PubMed

    Costanzo, Eliana; Miere, Alexandra; Querques, Giuseppe; Capuano, Vittorio; Jung, Camille; Souied, Eric H

    2016-07-01

    To evaluate the size of type 1 choroidal neovascularization (CNV) in neovascular AMD by optical coherence tomography angiography (OCTA) and to compare with indocyanine green angiography (ICGA). Patients diagnosed type 1 CNV underwent multimodal imaging by fluorescein angiography (FA), ICGA, spectral-domain (SD)-OCT, and OCTA. Lesion size was measured both on OCTA at the choriocapillaris level with "select area" and "vessel area" functions, incorporated in AngioVue software and on ICGA at intermediate and late phases, by two masked independent readers. Nineteen eyes of 17 patients (mean age 80.6 ± 8.36) were included in the analysis. Mean visual acuity was 0.2 logMAR. All OCTA revealed a high flow neovascular network in the choriocapillaris segmentation. On OCTA, interclass correlation between readers 1 and 2 was 0.96 (95% confidence interval [CI] 0.94-0.99) for select area and 0.97 (95% CI 0.96-0.99) for vessel area. The difference between lesion size in OCTA versus ICGA was detected in all eyes and it was statistically significant for both readers (P < 0.05). Optical coherence tomography angiography provides both quantitative and qualitative information on type 1 CNV and appears as a new reproducible way to evaluate CNV area and vessels area. Type 1 CNV lesion size in the choriocapillaris segmentation of OCTA and ICGA intermediate and late phases revealed that the OCTA size is significantly smaller than the ICGA size. This supports the idea that OCTA could be considered for evaluation of the neovascular lesion and for evaluation of therapeutic responses.

  5. 40 CFR 792.29 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) GOOD LABORATORY PRACTICE STANDARDS Organization and Personnel § 792.29 Personnel. (a) Each individual.... (b) Each testing facility shall maintain a current summary of training and experience and...

  6. 40 CFR 792.29 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) GOOD LABORATORY PRACTICE STANDARDS Organization and Personnel § 792.29 Personnel. (a) Each individual.... (b) Each testing facility shall maintain a current summary of training and experience and...

  7. Personnel Management: A J/A Perspective

    ERIC Educational Resources Information Center

    Tasca, A. J.

    1974-01-01

    Recently, personnel executives and their staffs are being asked to help management solve an increasing number of human resource and business problems. Personnel management must undergo some changes if it is to achieve its full potential. (Author/AJ)

  8. The Control Process In Personnel Management

    ERIC Educational Resources Information Center

    Tracy, Lane

    1976-01-01

    The concept of human resource planning in personnel administration is gradually reintroducing the need for control over personnel functions as is usually demanded of other functions such as production and finance. (Author/TA)

  9. Personnel Management: A J/A Perspective

    ERIC Educational Resources Information Center

    Tasca, A. J.

    1974-01-01

    Recently, personnel executives and their staffs are being asked to help management solve an increasing number of human resource and business problems. Personnel management must undergo some changes if it is to achieve its full potential. (Author/AJ)

  10. Contact dermatitis in military personnel.

    PubMed

    Dever, Tara T; Walters, Michelle; Jacob, Sharon

    2011-01-01

    Military personnel encounter the same allergens and irritants as their civilian counterparts and are just as likely to develop contact dermatitis from common exposures encountered in everyday life. In addition, they face some unique exposures that can be difficult to avoid owing to their occupational duties. Contact dermatitis can be detrimental to a military member's career if he or she is unable to perform core duties or avoid the inciting substances. An uncontrolled contact dermatitis can result in the member's being placed on limited-duty (ie, nondeployable) status, needing a job or rate change, or separation from military service. We present some common causes of contact dermatitis in military personnel worldwide and some novel sources of contact dermatitis in this population that may not be intuitive.

  11. Personnel

    SciTech Connect

    2006-10-13

    Le président du conseil M.Doran explique la décision que le conseil du Cern vient de prendre sur la 4.étape du régime complémentaire des pensions. Le président du comité des finances le Dr.Andersen ainsi que le Prof.Connor(?) prennent aussi la parole

  12. Personnel

    ScienceCinema

    None

    2016-07-12

    Le président du conseil M.Doran explique la décision que le conseil du Cern vient de prendre sur la 4.étape du régime complémentaire des pensions. Le président du comité des finances le Dr.Andersen ainsi que le Prof.Connor(?) prennent aussi la parole

  13. 5 CFR 293.302 - Establishment of Official Personnel Folder.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Establishment of Official Personnel Folder. 293.302 Section 293.302 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Official Personnel Folder § 293.302 Establishment of Official Personnel Folder...

  14. 5 CFR 293.302 - Establishment of Official Personnel Folder.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Establishment of Official Personnel Folder. 293.302 Section 293.302 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Official Personnel Folder § 293.302 Establishment of Official Personnel Folder...

  15. 5 CFR 293.302 - Establishment of Official Personnel Folder.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Establishment of Official Personnel Folder. 293.302 Section 293.302 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Official Personnel Folder § 293.302 Establishment of Official Personnel Folder...

  16. 5 CFR 293.302 - Establishment of Official Personnel Folder.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Establishment of Official Personnel Folder. 293.302 Section 293.302 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Official Personnel Folder § 293.302 Establishment of Official Personnel Folder...

  17. 5 CFR 293.302 - Establishment of Official Personnel Folder.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Establishment of Official Personnel Folder. 293.302 Section 293.302 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL RECORDS Official Personnel Folder § 293.302 Establishment of Official Personnel...

  18. Comparative International Military Personnel Policies.

    DTIC Science & Technology

    1998-07-01

    Netherlands France Germany United Kingdom United Kingdom ( Chile ) The Netherlands Belgium The Netherlands Italy Denmark A workshop paper submitted by...115 Comparative International Military Personnel Policies 1. HISTORICAL ACCOUNT Chile had the first permanent army in America. It was founded...exemplified in the decisions taken by Ines de Suarez in the first years of the ’ Conquista ’, or afterwards by Sergeant ’Candelaria’ in the War of the Pacific

  19. Manpower planning for nurse personnel.

    PubMed Central

    Keaveny, T J; Hayden, R L

    1978-01-01

    A technique is described which can be applied to manpower planning for nurse personnel at a state or regional level. An iterative process explores the implications of alternative planning policy decision strategies intended to balance manpower supply and requirements. Impacts of the following policy alternatives are estimated: scale of operations of education institutions; interstate migration patterns; labor force participation rates; and job design of licensed practical nurse (LPN) and registered nurse (RN) positions. PMID:665883

  20. X-15 personnel July 1962

    NASA Image and Video Library

    1962-07-16

    X-15 personnel July 1962 Cockpit: Edward "Ed" Nice Ladder: Thomas "Tom" McAlister Back Row, left to right: William Clark, Edward "Ed" Sabo, Donald "Don" Hall, Billy Furr, Allen Dustin, Raymond "Ray" White, George E. Trott, Alfred "Al" Grieshaber, Merle Curtis, LeRoy "Lee" Adelsbach, Allen Lowe, Jay L. King, Lorenzo "Larry" Barnett. Kneeling, left to right: Byron Gibbs, Price "Bob" Workman, Ira Cupp, unidentified, John Gordon.

  1. Combat Attitudes of USAFE Personnel,

    DTIC Science & Technology

    1986-04-01

    characteristic that Air Force personnel stationed there must face a foreign environment. xil Chapter One INTRODUCTION Over the course of history , many military...calculated steps to ensure its soldiers are ready to fight. This could be more critical today than at any other time in history because of the...incredibly violent. The technology will be ultramodern; the psychological stresses on soldiers, as terrible and lonely as any in the history of warfare" (p

  2. Collaborative Operations for Personnel Recovery

    DTIC Science & Technology

    2008-02-01

    AFRL-RI-RS-TR-2008-26 Final Technical Report February 2008 COLLABORATIVE OPERATIONS FOR PERSONNEL RECOVERY University of...ADDRESS(ES) Artificial Intelligence Applications Institute The University of Edinburgh Appleton Tower, Crichton St. Edinburgh EH8 9LE, UK 8...under agreement number F30602-03-2-0014. The University of Edinburgh, the U.S. government and research sponsors are authorized to reproduce and

  3. Visual-Functional Mismatch Between Coronary Angiography, Fractional Flow Reserve, and Quantitative Coronary Angiography.

    PubMed

    Safi, Morteza; Eslami, Vahid; Namazi, Mohammad Hasan; Vakili, Hossain; Saadat, Habib; Alipourparsa, Saeid; Adibi, Ali; Movahed, Mohammad Reza

    2016-12-01

    Anatomical and functional mismatches are not uncommon in the assessment of coronary lesions. The aim of this study was to identify clinical and lesion-specific factors affecting angiographic, anatomical, and functional mismatch in intermediate coronary lesions. In patients who underwent coronary angiography for clinical reasons, fractional flow reserve (FFR), and quantitative coronary angiography (QCA) analyses for intermediate stenotic lesions were performed simultaneously. Mismatches between the measured values were analyzed. A total of 95 intermediate lesions were assessed simultaneously by visual angiography, FFR, and QCA. The visual-FFR mismatch was found in 40% of the lesions while reverse visual-FFR mismatch was determined in nearly 14% of the lesions. Mismatch and reverse mismatch between FFR and QCA parameters were observed in 10 and 23% of the lesions. FFR value was significant in 32% of the lesions while visually significant stenosis was shown in 61% of the lesions. Among the visual-FFR reverse mismatch group, the prevalence of culprit lesions within the left anterior descending (LAD) was significantly higher than other vessels (p value < 0.02). There were high frequencies of angiographic, QCA, and functional mismatches in analyses of intermediate coronary lesions. LAD lesions showed the highest mismatch. Angiographic or QCA estimation of lesion severity has consistently resulted in inappropriate stenting of functionally nonsignificant lesions or undertreatment of significant lesions based on FFR.

  4. Patient radiation dose from computed tomography angiography and digital subtraction angiography of the brain

    NASA Astrophysics Data System (ADS)

    Netwong, Y.; Krisanachinda, A.

    2016-03-01

    The 64-row multidetector computed tomography angiography (64-MDCTA) provides vascular image quality of the brain similar to digital subtraction angiography (DSA), but the effective dose of CTA is lower than DSA studied in phantom. The purpose of this study is to evaluate the effective dose from 64-MDCTA and DSA. Effective dose (according to ICRP 103) from 64-MDCTA and DSA flat panel detector for cerebral vessels examination of the brain using standard protocols as recommended by the manufacturer was calculated for 30 cases of MDCTA (15 male and 15 female).The mean patient age was 49.5 (23-89) yrs. 30 cases of DSA (14 male and 16 female), the mean patient age was 46.8 (21-81) yrs. For CTA, the mean effective dose was 3.7 (2.82- 5.19) mSv. For DSA, the mean effective dose was 5.78 (3.3-10.06) mSv. The effective dose of CTA depends on the scanning protocol and scan length. Low tube current can reduce patient dose whereas the number of exposures and number of series in 3D rotational angiography (3D RA) resulted in increasing effective dose in DSA patients.

  5. Fluorescein angiography basic science and engineering.

    PubMed

    Wolfe, D R

    1986-12-01

    Fluorescein angiography is an application of the physical phenomenon of fluorescence, which is phosphorescence in which the quantum mechanical decay curve is so rapid that it appears instantaneous, and it consequently has no afterglow. Sodium fluorescein is excited by light energy between 465 and 490 nm, and it decays into a lower state emitting light energy between 520 and 530 nm as fluorescent radiation. The free electrons available for excitation are reduced by chemical bonding between the fluorescein dye and plasma proteins to which up to 80% of the dye is bound in the bloodstream, thus reducing overall fluorescence. Optimalization of the observed and recorded fluorescence is afforded by providing exciter and barrier filters with as little overlap as possible to reduce or eliminate contrast reducing pseudofluorescence.

  6. Indications for angiography in blunt thoracic trauma

    SciTech Connect

    Barcia, T.C.; Livoni, J.P.

    1983-04-01

    The clinical charts and radiographs of 113 patients who underwent aortography for suspected blunt injury to the aorta and brachiocephalic vessels were reviewed to identify the most useful indications for angiography. Eight previously described clinical criteria and 14 previously described radiographic criteria were evaluated in each of these patients, 27 of whom had either an aortic or brachiocephalic injury. Contrary to previous reports, our data indicate that no single clinical or radiographic sign is highly specific for vascular injury. An abnormal aortic outline and mediastinal widening remain the most sensitive criteria, although these were also present in a large number of patients without vascular injury. Displaced paraspinous lines and nasogastric tubes are also useful signs.

  7. Digital subtraction angiography in extremity trauma

    SciTech Connect

    Goodman, P.C.; Jeffrey, R.B. Jr.; Brant-Zawadzki, M.

    1984-10-01

    Digital subtraction angiography (DSA) may have considerable impact on the work-up of patients who have suffered trauma. The angiographic evaluation of vascular injuries can be accomplished rapidly and with minimal catheter use and manipulation, which is particularly important for those critically ill patients who have significant immobility because of multiple fractures. The authors retrospectively reviewed the digital subtraction angiograms in 50 consecutive cases of extremity trauma. The quality of the images in 44 of these permitted a confident diagnosis, the accuracy of which was confirmed by surgical or clinical follow-up. DSA reduces the time required to perform the procedure, the amount of contrast material injected, patient discomfort, and film cost. Its major disadvantage is the limited field size of the image intensifier.

  8. Coronary CT angiography with low radiation dose.

    PubMed

    Xu, Lei; Zhang, Zhaoqi

    2010-02-01

    With the introduction of 64-slice CT and dual-source CT technology, coronary CT angiography(CCTA) has emerged as a useful diagnostic imaging modality for the noninvasive assessment of coronary heart disease. Recently, the risks associated with ionizing radiation on CT have raised serious concerns.The main concern of exposure to ionizing radiation is the potential risk of cancer. CCTA involves much higher radiation dose with the advances in the spatial and temporal resolution of cardiac CT. Currently,various dose-saving algorithms, such as ECG (electrocardiography)-based dose modulation, reduced tube voltage, and prospective ECG gating, high-pitch helical scanning are available to lower radiation exposure during cardiac CT. Therefore, careful selection of CT scanning protocols is needed to keep the radiation exposure 'as low as reasonably achievable (ALARA)'. In this review we will discuss the radiation dose safety issues, the measurement of radiation dose and current use of dose-saving techniques in CCTA.

  9. Coronary CT angiography: current status and continuing challenges

    PubMed Central

    Sun, Z; Choo, G H; Ng, K H

    2012-01-01

    Coronary CT angiography has been increasingly used in the diagnosis of coronary artery disease owing to rapid technological developments, which are reflected in the improved spatial and temporal resolution of the images. High diagnostic accuracy has been achieved with multislice CT scanners (64 slice and higher), and in selected patients coronary CT angiography is regarded as a reliable alternative to invasive coronary angiography. With high-quality coronary CT imaging increasingly being performed, patients can benefit from an imaging modality that provides a rapid and accurate diagnosis while avoiding an invasive procedure. Despite the tremendous contributions of coronary CT angiography to cardiac imaging, study results reported in the literature should be interpreted with caution as there are some limitations existing within the study design or related to patient risk factors. In addition, some attention must be given to the potential health risks associated with the ionising radiation received during cardiac CT examinations. Radiation dose associated with coronary CT angiography has raised serious concerns in the literature, as the risk of developing malignancy is not negligible. Various dose-saving strategies have been implemented, with some of the strategies resulting in significant dose reduction. The aim of this review is to present an overview of the role of coronary CT angiography on cardiac imaging, with focus on coronary artery disease in terms of the diagnostic and prognostic value of coronary CT angiography. Various approaches for dose reduction commonly recommended in the literature are discussed. Limitations of coronary CT angiography are identified. Finally, future directions and challenges with the use of coronary CT angiography are highlighted. PMID:22253353

  10. Accuracy of distance measurements in biplane angiography

    NASA Astrophysics Data System (ADS)

    Toennies, Klaus D.; Oishi, Satoru; Koster, David; Schroth, Gerhard

    1997-05-01

    Distance measurements of the vascular system of the brain can be derived from biplanar digital subtraction angiography (2p-DSA). The measurements are used for planning of minimal invasive surgical procedures. Our 90 degree-fixed-angle G- ring angiography system has the potential of acquiring pairs of such images with high geometric accuracy. The sizes of vessels and aneurysms are estimated applying a fast and accurate extraction method in order to select an appropriate surgical strategy. Distance computation from 2p-DSA is carried out in three steps. First, the boundary of the structure to be measured is detected based on zero-crossings and closeness to user-specified end points. Subsequently, the 3D location of the center of the structure is computed from the centers of gravity of its two projections. This location is used to reverse the magnification factor caused by the cone-shaped projection of the x-rays. Since exact measurements of possibly very small structures are crucial to the usefulness in surgical planning, we identified mechanical and computational influences on the geometry which may have an impact on the measurement accuracy. A study with phantoms is presented distinguishing between the different effects and enabling the computation of an optimal overall exactness. Comparing this optimum with results of distance measurements on phantoms whose exact size and shape is known, we found, that the measurement error for structures of size of 20 mm was less than 0.05 mm on average and 0.50 mm at maximum. The maximum achievable accuracy of 0.15 mm was in most cases exceeded by less than 0.15 mm. This accuracy surpasses by far the requirements for the above mentioned surgery application. The mechanic accuracy of the fixed-angle biplanar system meets the requirements for computing a 3D reconstruction of the small vessels of the brain. It also indicates, that simple measurements will be possible on systems being less accurate.

  11. [Myocardial perfusion imaging by digital subtraction angiography].

    PubMed

    Kadowaki, H; Ishikawa, K; Ogai, T; Katori, R

    1986-03-01

    Several methods of digital subtraction angiography (DSA) were compared to determine which could better visualize regional myocardial perfusion using coronary angiography in seven patients with myocardial infarction, two with angina pectoris and five with normal coronary arteries. Satisfactory DSA was judged to be achieved if the shape of the heart on the mask film was identical to that on the live film and if both films were exactly superimposed. To obtain an identical mask film in the shape of each live film, both films were selected from the following three phases of the cardiac cycle; at the R wave of the electrocardiogram, 100 msec before the R wave, and 200 msec before the R wave. The last two were superior for obtaining mask and live films which were similar in shape, because the cardiac motion in these phases was relatively small. Using these mask and live films, DSA was performed either with the continuous image mode (CI mode) or the time interval difference mode (TID mode). The overall perfusion of contrast medium through the artery to the vein was adequately visualized using the CI mode. Passage of contrast medium through the artery, capillary and vein was visualized at each phase using TID mode. Subtracted images were displayed and photographed, and the density of the contrast medium was adequate to display contour lines as in a relief map. Using this DSA, it was found that regional perfusion of the contrast medium was not always uniform in normal subjects, depending on the typography of the coronary artery.(ABSTRACT TRUNCATED AT 250 WORDS)

  12. 21 CFR 58.29 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 1 2011-04-01 2011-04-01 false Personnel. 58.29 Section 58.29 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Organization and Personnel § 58.29 Personnel. (a) Each individual engaged...

  13. 21 CFR 58.29 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 1 2014-04-01 2014-04-01 false Personnel. 58.29 Section 58.29 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Organization and Personnel § 58.29 Personnel. (a) Each individual engaged...

  14. 21 CFR 58.29 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Personnel. 58.29 Section 58.29 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Organization and Personnel § 58.29 Personnel. (a) Each individual engaged...

  15. 21 CFR 58.29 - Personnel.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 1 2013-04-01 2013-04-01 false Personnel. 58.29 Section 58.29 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Organization and Personnel § 58.29 Personnel. (a) Each individual engaged...

  16. 21 CFR 58.29 - Personnel.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 1 2012-04-01 2012-04-01 false Personnel. 58.29 Section 58.29 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Organization and Personnel § 58.29 Personnel. (a) Each individual engaged...

  17. 14 CFR 145.151 - Personnel requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Personnel requirements. 145.151 Section 145.151 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SCHOOLS AND OTHER CERTIFICATED AGENCIES REPAIR STATIONS Personnel § 145.151 Personnel requirements....

  18. 46 CFR 107.113 - Industrial personnel.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Industrial personnel. 107.113 Section 107.113 Shipping... CERTIFICATION General § 107.113 Industrial personnel. Industrial personnel are all persons, exclusive of the... unit for the sole purpose of carrying out the industrial business or functions of the unit. ...

  19. 21 CFR 211.28 - Personnel responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... from contamination. (b) Personnel shall practice good sanitation and health habits. (c) Only personnel... Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS... instructed to report to supervisory personnel any health conditions that may have an adverse effect on...

  20. 76 FR 81359 - National Security Personnel System

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-28

    ...;having general applicability and legal effect, most of which are keyed #0;to and codified in the Code of... MANAGEMENT 5 CFR Chapter XCIX RIN 3206-AM 53 National Security Personnel System AGENCY: Department of Defense... Defense and Office of Personnel Management regulations concerning the National Security Personnel System...

  1. The Changing World of Personnel Management.

    ERIC Educational Resources Information Center

    Anderson, Eileen R.

    Although personnel management in the public sector has become increasingly difficult because of recent social changes, more worker and middle management involvement in decision-making processes can improve all levels of personnel management. The social changes affecting personnel management have assumed three forms: (1) the entrance into the work…

  2. The Personnel Office and Computer Services: Tomorrow.

    ERIC Educational Resources Information Center

    Nicely, H. Phillip, Jr.

    1980-01-01

    It is suggested that the director of personnel should be making maximum use of available computer services. Four concerns of personnel directors are cited: number of government reports required, privacy and security, cost of space for personnel records and files, and the additional decision-making tools required for collective bargaining…

  3. Personnel Management for Effective Schools. Second Edition.

    ERIC Educational Resources Information Center

    Seyfarth, John T.

    Myriad issues face those who manage school personnel. Explicating the wide range of activities covered by the term "personnel management" is the object of this text. It is geared for prospective and current school administrators whose responsibilities include any aspect of personnel management. The text is organized around the premise that student…

  4. Personnel Development Practices in Turkish Education System

    ERIC Educational Resources Information Center

    Ozdemir, Tuncay Yavuz

    2016-01-01

    Nowadays everything develops and changes very quickly and sustainability of organizational goals will be possible only when personnel can keep up with these changes. From administrative aspect it is important to enhance personnel's potential and prompt them to achieve organizational goals. Personnel development is a process which influences and…

  5. The Changing World of Personnel Management.

    ERIC Educational Resources Information Center

    Anderson, Eileen R.

    Although personnel management in the public sector has become increasingly difficult because of recent social changes, more worker and middle management involvement in decision-making processes can improve all levels of personnel management. The social changes affecting personnel management have assumed three forms: (1) the entrance into the work…

  6. CT angiography in the abdomen: a pictorial review and update.

    PubMed

    Liu, Peter S; Platt, Joel F

    2014-02-01

    The development of multidetector CT technology and helical scanning techniques has revolutionized the use of CT for primary diagnostic evaluation of the abdominal vasculature, particularly the arterial system. CT angiography has numerous benefits relative to conventional catheter angiography, and has largely replaced catheter-based techniques in many clinical algorithms. This pictorial review and update will cover important technical principles related to modern CT angiography (including contrast delivery and dose considerations), discuss relevant anatomy and variants, and illustrate numerous arterial conditions related to the abdominal aorta and branch vessels.

  7. Optical coherence tomography angiography and indocyanine green angiography for corneal vascularisation.

    PubMed

    Ang, Marcus; Cai, Yijun; MacPhee, Becky; Sim, Dawn A; Keane, Pearse A; Sng, Chelvin C A; Egan, Catherine A; Tufail, Adnan; Larkin, Daniel F; Wilkins, Mark R

    2016-11-01

    To describe an optical coherence tomography angiography (OCTA) system adapted for anterior segment imaging, compared with indocyanine green angiography (ICGA) in eyes with corneal vascularisation. Retrospective study of subjects with corneal vascularisation secondary to microbial keratitis who had OCTA scans performed using a commercially available split-spectrum amplitude-decorrelation algorithm angiography system (AngioVue; Optovue Inc., Fremont, California, USA) and ICGA images (Spectralis; Heidelberg Engineering, Heidelberg, Germany). The agreement between OCTA and ICGA techniques in terms of area of vascularisation measured, using Bland-Altman 95% limits of agreement (LOA). We compared the area of corneal vascularisation in 64 scan images (eight eyes, four scans for each angiography technique). In our series, the overall mean area of vascularisation from the ICGA scans was 0.49±0.34 mm(2) and OCTA scans was 0.51±0.36 mm(2). We obtained substantial repeatability in terms of image quality score (κ=0.80) for all OCTA scans. The agreement between OCTA and ICGA scans was good, although ICGA measured a smaller area compared with the OCTA with a mean difference of -0.03 mm(2) (95% CI -0.07 to 0.01). The LOA ranged from a lower limit of -0.27 (95% CI -0.34 to -0.19) to an upper limit of 0.20 (95% CI 0.13 to 0.28, p=0.127). We found that rapid, non-contact OCTA adapted for the cornea was comparable with ICGA for measurement of the area of corneal vascularisation in this pilot clinical study. Further prospective studies are required to confirm if this relatively new imaging technique may be further developed to replace invasive angiography techniques for the anterior segment. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  8. Child Protection in Military Communities. The User Manual Series.

    ERIC Educational Resources Information Center

    Broadhurst, Diane D.; And Others

    Intended for use by military personnel involved in child advocacy efforts and by Child Protective Services personnel working in conjunction with the military, this manual describes programs, procedures, and regulations developed to facilitate intervention in cases of child abuse and neglect among military personnel. Initially, an overview of child…

  9. 75 FR 29366 - Hyginus U. Aguzie v. Office of Personnel Management

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-25

    ... BOARD Hyginus U. Aguzie v. Office of Personnel Management AGENCY: Merit Systems Protection Board. ACTION: Notice. SUMMARY: The Merit Systems Protection Board (MSPB) is providing notice of an extension of time in... Management, MSPB Docket Number DC-0731-09-0261-R-1. DATES: All briefs submitted in response to this notice...

  10. Coronary MR angiography revealed: how to optimize image quality.

    PubMed

    Ishida, Masaki; Sakuma, Hajime

    2015-02-01

    Magnetic resonance (MR) imaging of the coronary arteries has been challenging, owing to the small size of the vessels and the complex motion caused by cardiac contraction and respiration. Free-breathing, whole-heart coronary MR angiography has emerged as a method that can provide visualization of the entire coronary arterial tree within a single 3-dimensional acquisition. Although coronary MR angiography is noninvasive and without radiation exposure, acquisition of high-quality coronary images is operator dependent and is generally more difficult than computed tomographic angiography. This article explains how to optimize acquisition of coronary MR angiography for reliable assessment of coronary artery disease. Copyright © 2015 Elsevier Inc. All rights reserved.

  11. Aortic valve laceration following coronary angiography and percutaneous coronary intervention.

    PubMed

    Roy, James; Manganas, Con; Youssef, George; Rees, David

    2016-11-01

    Valve complications following coronary angiography and percutaneous coronary interventions are rare. We report a case of an aortic valve laceration following cardiac catheterization and percutaneous coronary intervention, which required surgical valve replacement. © 2016 Wiley Periodicals, Inc.

  12. Digital subtraction angiography for preoperative evaluation of extremity tumors

    SciTech Connect

    Paushter, D.M.; Borkowski, G.R.; Buonocore, E.; Belhobek, G.H.; Marks, K.E.

    1983-07-01

    A retrospective study was undertaken to evaluate the role of digital subtraction angiography (DSA) in the surgical planning of musculoskeletal neoplasms. Thirteen patients with primary bone and soft-tissue tumors were examined by CT and DSA. Three patients also had conventional angiography. DSA yielded surgically useful information in 10 patients, comparable to that expected from conventional angiography. DSA was most helpful in demonstrating the presence or absence of major vessel involvement by tumor when this could not be ascertained definitely on CT. Demonstration of mass extent by CT was accurate in 11 patients. Results of this study suggest that the combination of CT and DSA is useful in the preoperative evaluation of selected extremity tumors and should diminish the need for conventional angiography.

  13. Intra-Operative Indocyanine Green Angiography of the Parathyroid Gland.

    PubMed

    Vidal Fortuny, Jordi; Karenovics, Wolfram; Triponez, Frederic; Sadowski, Samira M

    2016-10-01

    Major complications of thyroid and parathyroid surgery are recurrent laryngeal nerve injuries and definitive hypoparathyroidism. The use of intra-operative Indocyanine Green Angiography for confirmation of vascular status of the parathyroid gland is reported here.

  14. Indocyanine green angiography findings in acute retinal necrosis syndrome.

    PubMed

    Bissig, A; Balaskas, K; Vaudaux, J D; Guex-Crosier, Y

    2011-04-01

    Acute retinal necrosis syndrome is clinically defined by the presence of peripheral necrotizing retinitis associated with severe occlusive vasculitis caused primarily by herpes simplex virus and varicella zoster virus. Previously considered as an exclusively retinal pathology, choroidal involvement, as demonstrated by indocyanine green angiography, has not been extensively studied. Indocyanine green angiography was performed in 4 patients with ARN. Observed angiographic patterns included: 1. a characteristic triangular area of hypo-perfusion, 2. hypofluorescent lobular patches and areas of fuzzy choroidal vascular hyperfluorescence, and 3. isolated hypofluorescent lobular patches of the contralateral eye. Marked choroidal hypo-perfusion on indocyanine green angiography was associated with extensive retinal ischemia. Treatment included a combination of antiviral agents and corticosteroids complemented by prophylactic acetylsalicylate. Indocyanine green angiography may provide important information regarding choroidal vascular involvement in ARN. It may also permit the timely identification of sub-clinical contralateral eye involvement. © Georg Thieme Verlag KG Stuttgart · New York.

  15. Cine photography and video recording of anterior segment fluorescein angiography.

    PubMed Central

    Marsh, R J; Ford, S M

    1978-01-01

    A description is given of apparatus and technique for carrying out cine photography and video recording of anterior segment fluorescein angiography. We found cine best for single-frame analysis and video tape recording less expensive. Images PMID:708682

  16. Digital subtraction angiography in pediatric cerebrovascular occlusive disease

    SciTech Connect

    Faerber, E.N.; Griska, L.A.B.; Swartz, J.D.; Capitanio, M.A.; Popky, G.L.

    1984-08-01

    While conventional angiography has been used to demonstrate cerebrovascular occlusive disease in the past, digital subtraction angiography (DSA) is capable of showing progressive vascular involvement with ease, simplicity, and extremely low morbidity, making it particularly well suited for children and outpatients either alone or coordinated with computed tomography. The authors discuss the usefulness and advantages of DSA as demonstrated in 7 infants and children with hemiplegia, 4 of whom had sickle-cell disease.

  17. Personnel Launch System (PLS) study

    NASA Technical Reports Server (NTRS)

    Ehrlich, Carl F., Jr.

    1991-01-01

    NASA is currently studying a personnel launch system (PLS) approach to help satisfy the crew rotation requirements for the Space Station Freedom. Several concepts from low L/D capsules to lifting body vehicles are being examined in a series of studies as a potential augmentation to the Space Shuttle launch system. Rockwell International Corporation, under contract to NASA, analyzed a lifting body concept to determine whether the lifting body class of vehicles is appropriate for the PLS function. The results of the study are given.

  18. BETA-GAMMA PERSONNEL DOSIMETER

    DOEpatents

    Davis, D.M.; Gupton, E.D.; Hart, J.C.; Hull, A.P.

    1961-01-17

    A personnel dosimeter is offered which is sensitive to both gamma and soft beta radiations from all directions within a hemisphere. The device is in the shape of a small pill box which is worn on a worker-s wrist. The top and sides of the device are provided with 50 per cent void areas to give 50 per cent response to the beta rays and complete response to the gamma rays. The device is so constructed as to have a response which will approximate the dose received by the basal layer of the human epidermis.

  19. Personnel Security Program. Change 2

    DTIC Science & Technology

    1993-07-14

    administrative action in a personnel security determination. # First Amendment (Ch 2, 7/14/93) 1-3 Jan 87# DoD 5200.2-R 1-312 National Agency Check (NAC) A... First Amendment (Ch 2, 7/14/93) 1-4 Jan 87# DoD 5200.2-R (1) The nature and seriousness of the conduct: (2) The circumstances surrounding the conduct...Acce-ioii For NTiS r(PA&J LI D ’••.:t . ,. ~ F .r...... An. .... # First Amendment (Ch 2, 7/14/93) VI-3 Jan 87# DoD5200.2-R 0 CHAPTER VII ISSUING

  20. Personnel occupied woven envelope robot

    NASA Technical Reports Server (NTRS)

    Wessling, F. C.

    1986-01-01

    The use of nonmetallic or fabric structures for space application is considered. The following structures are suggested: (1) unpressurized space hangars; (2) extendable tunnels for soft docking; and (3) manned habitat for space stations, storage facilities, and work structures. The uses of the tunnel as a passageway: for personnel and equipment, eliminating extravehicular activity, for access to a control cabin on a space crane and between free flyers and the space station are outlined. The personnal occupied woven envelope robot (POWER) device is shown. The woven envelope (tunnel) acts as part of the boom of a crane. Potential applications of POWER are outlined. Several possible deflection mechanisms and design criteria are determined.

  1. Guidelines for Protection in Evaluation.

    ERIC Educational Resources Information Center

    Mainzer, Richard W.; And Others

    The report examines due process protections and requirements in evaluation as mandated by P.O. 94-142 (The Education for All Handicapped Children Act) and Maryland special education Bylaw. A checklist guide for Admission, Review, and Dismissal (ARD) personnel to ensure protection in evaluation is provided. Self check guidelines touch on 16…

  2. Risk factors for occupational brucellosis among veterinary personnel in Turkey.

    PubMed

    Kutlu, Murat; Ergonul, Onder; Sayin-Kutlu, Selda; Guven, Tumer; Ustun, Cemal; Alp-Cavus, Sema; Ozturk, Serife Barcın; Acicbe, Ozlem; Akalin, Serife; Tekin, Recep; Tekin-Koruk, Suda; Demiroglu, Yusuf Ziya; Keskiner, Ramazan; Gönen, Ibak; Sapmaz-Karabag, Sevil; Bosnak, Vuslat; Kazak, Esra

    2014-11-01

    Veterinarians and veterinary technicians are at risk for occupational brucellosis. We described the risk factors of occupational brucellosis among veterinary personnel in Turkey. A multicenter retrospective survey was performed among veterinary personnel who were actively working in the field. Of 712 veterinary personnel, 84 (11.8%) had occupational brucellosis. The median number of years since graduation was 7 (interquartile ranges [IQR], 4-11) years in the occupational brucellosis group, whereas this number was 9 (IQR, 4-16) years in the non-brucellosis group (p<0.001). In multivariable analysis, working in the private sector (odds ratio [OR], 2.8; 95% confidence interval [95% CI], 1.55-5.28, p=0.001), being male (OR, 4.5; 95% CI, 1.05-18.84, p=0.041), number of performed deliveries (OR, 1.01; 95% CI, 1.002-1.02, p=0.014), and injury during Brucella vaccine administration (OR, 5.4; 95% CI, 3.16-9.3, p<0.001) were found to be risk factors for occupational brucellosis. We suggest that all veterinary personnel should be trained on brucellosis and the importance of using personal protective equipment in order to avoid this infection.

  3. Risk of blood contamination and injury to operating room personnel.

    PubMed Central

    Quebbeman, E J; Telford, G L; Hubbard, S; Wadsworth, K; Hardman, B; Goodman, H; Gottlieb, M S

    1991-01-01

    The potential for transmission of deadly viral diseases to health care workers exists when contaminated blood is inoculated through injury or when blood comes in contact with nonintact skin. Operating room personnel are at particularly high risk for injury and blood contamination, but data on the specifics of which personnel are at greater risk and which practices change risk in this environment are almost nonexistent. To define these risk factors, experienced operating room nurses were employed solely to observe and record the injuries and blood contaminations that occurred during 234 operations involving 1763 personnel. Overall 118 of the operations (50%) resulted in at least one person becoming contaminated with blood. Cuts or needlestick injuries occurred in 15% of the operations. Several factors were found to significantly alter the risk of blood contamination or injury: surgical specialty, role of each person, duration of the procedure, amount of blood loss, number of needles used, and volume of irrigation fluid used. Risk calculations that use average values to include all personnel in the operating room or all operations performed substantially underestimate risk for surgeons and first assistants, who accounted for 81% of all body contamination and 65% of the injuries. The area of the body contaminated also changed with the surgical specialty. These data should help define more appropriate protection for individuals in the operating room and should allow refinements of practices and techniques to decrease injury. Images Fig. 1. PMID:1953115

  4. Relationships between coronary angiography, mood, anxiety and insomnia.

    PubMed

    Ozdemir, Pınar Guzel; Selvi, Yavuz; Boysan, Murat; Ozdemir, Mahmut; Akdağ, Serkan; Ozturk, Fatih

    2015-08-30

    The purpose of this study was to investigate and compare the anxiety, depression and insomnia levels in the pre- and post-coronary angiography in patients undergoing elective coronary angiography due to suspected coronary artery disease. This prospective cross-sectional study consisted of 120 patients consecutively underwent coronary angiogram (CAG) between January and August 2014 in Departments of Cardiology. The mean age was 57.49 (SD±9.73), and 58.3% of the sample were women. The Hospital Anxiety and Depression Scale, Profile of Mood States Scale, Spielberger's State-Trait Anxiety Inventory, and Insomnia Severity Index were used. Patients were subsumed under 2 groups as normal and critical according to the presence or the absence of visually severe stenosis in at least one coronary artery. Subjects with significant stenosis had greater mean scores on depression-dejection and anger-hostility sub-scales of the POMS in the post-angiography than pre-angiography scores. We found that older age and having a physical illness significantly contributed to the risk of having significant stenosis in coronary vasculature. Subjects with severe coronary artery stenosis scored higher on depression-dejection and anger-hostility sub-scales at the post-angiography time period relative to pre-angiography scores. Trait and state anxiety levels were found to be moderate higher in both groups. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  5. CT angiography of intracranial aneurysms: a focus on postprocessing.

    PubMed

    Tomandl, Bernd F; Köstner, Niels C; Schempershofe, Miriam; Huk, Walter J; Strauss, Christian; Anker, Lars; Hastreiter, Peter

    2004-01-01

    Computed tomographic (CT) angiography is a well-known tool for detection of intracranial aneurysms and the planning of therapeutic intervention. Despite a wealth of existing studies and an increase in image quality due to use of multisection CT and increasingly sophisticated postprocessing tools such as direct volume rendering, CT angiography has still not replaced digital subtraction angiography as the standard of reference for detection of intracranial aneurysms. One reason may be that CT angiography is still not a uniformly standardized method, particularly with regard to image postprocessing. Several methods for two- and three-dimensional visualization can be used: multiplanar reformation, maximum intensity projection, shaded surface display, and direct volume rendering. Pitfalls of CT angiography include lack of visibility of small arteries, difficulty differentiating the infundibular dilatation at the origin of an artery from an aneurysm, the kissing vessel artifact, demonstration of venous structures that can simulate aneurysms, inability to identify thrombosis and calcification on three-dimensional images, and beam hardening artifacts produced by aneurysm clips. Finally, an algorithm for the safe and useful application of CT angiography in patients with subarachnoid hemorrhage has been developed, which takes into account the varying quality of equipment and software at different imaging centers. Copyright RSNA, 2004

  6. Aqueous Angiography with Fluorescein and Indocyanine Green in Bovine Eyes.

    PubMed

    Huang, Alex S; Saraswathy, Sindhu; Dastiridou, Anna; Begian, Alan; Legaspi, Hanz; Mohindroo, Chirayu; Tan, James C H; Francis, Brian A; Caprioli, Joseph; Hinton, David R; Weinreb, Robert N

    2016-11-01

    We characterize aqueous angiography as a real-time aqueous humor outflow imaging (AHO) modality in cow eyes with two tracers of different molecular characteristics. Cow enucleated eyes (n = 31) were obtained and perfused with balanced salt solution via a Lewicky AC maintainer through a 1-mm side-port. Fluorescein (2.5%) or indocyanine green (ICG; 0.4%) were introduced intracamerally at 10 mm Hg individually or sequentially. With an angiographer, infrared and fluorescent images were acquired. Concurrent anterior segment optical coherence tomography (OCT) was performed, and fixable fluorescent dextrans were introduced into the eye for histologic analysis of angiographically positive and negative areas. Aqueous angiography in cow eyes with fluorescein and ICG yielded high-quality images with segmental patterns. Over time, ICG maintained a better intraluminal presence. Angiographically positive, but not negative, areas demonstrated intrascleral lumens with anterior segment OCT. Aqueous angiography with fluorescent dextrans led to their trapping in AHO pathways. Sequential aqueous angiography with ICG followed by fluorescein in cow eyes demonstrated similar patterns. Aqueous angiography in model cow eyes demonstrated segmental angiographic outflow patterns with either fluorescein or ICG as a tracer. Further characterization of segmental AHO with aqueous angiography may allow for intelligent placement of trabecular bypass minimally invasive glaucoma surgeries for improved surgical results.

  7. Aqueous Angiography with Fluorescein and Indocyanine Green in Bovine Eyes

    PubMed Central

    Huang, Alex S.; Saraswathy, Sindhu; Dastiridou, Anna; Begian, Alan; Legaspi, Hanz; Mohindroo, Chirayu; Tan, James C. H.; Francis, Brian A.; Caprioli, Joseph; Hinton, David R.; Weinreb, Robert N.

    2016-01-01

    Purpose We characterize aqueous angiography as a real-time aqueous humor outflow imaging (AHO) modality in cow eyes with two tracers of different molecular characteristics. Methods Cow enucleated eyes (n = 31) were obtained and perfused with balanced salt solution via a Lewicky AC maintainer through a 1-mm side-port. Fluorescein (2.5%) or indocyanine green (ICG; 0.4%) were introduced intracamerally at 10 mm Hg individually or sequentially. With an angiographer, infrared and fluorescent images were acquired. Concurrent anterior segment optical coherence tomography (OCT) was performed, and fixable fluorescent dextrans were introduced into the eye for histologic analysis of angiographically positive and negative areas. Results Aqueous angiography in cow eyes with fluorescein and ICG yielded high-quality images with segmental patterns. Over time, ICG maintained a better intraluminal presence. Angiographically positive, but not negative, areas demonstrated intrascleral lumens with anterior segment OCT. Aqueous angiography with fluorescent dextrans led to their trapping in AHO pathways. Sequential aqueous angiography with ICG followed by fluorescein in cow eyes demonstrated similar patterns. Conclusions Aqueous angiography in model cow eyes demonstrated segmental angiographic outflow patterns with either fluorescein or ICG as a tracer. Translational Relevance Further characterization of segmental AHO with aqueous angiography may allow for intelligent placement of trabecular bypass minimally invasive glaucoma surgeries for improved surgical results. PMID:27847692

  8. Developing the Interpretive Niche for Protected Area Personnel.

    ERIC Educational Resources Information Center

    Rodriguez, Donald A.; Wallace, George N.

    1994-01-01

    Examines the role of park guards in the Galapagos National Park in Ecuador, in interpretation and visitor management. Presents strategies for involving the park guards, who function more as rangers, in interpretative activities with local people and national visitors. (LZ)

  9. 29 CFR 1910.335 - Safeguards for personnel protection.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... danger of head injury from electric shock or burns due to contact with exposed energized parts. (v... circuit parts, each employee shall use insulated tools or handling equipment if the tools or handling... handling equipment, insulated for the circuit voltage, shall be used to remove or install fuses when the...

  10. 29 CFR 1910.335 - Safeguards for personnel protection.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... danger of head injury from electric shock or burns due to contact with exposed energized parts. (v... circuit parts, each employee shall use insulated tools or handling equipment if the tools or handling... handling equipment, insulated for the circuit voltage, shall be used to remove or install fuses when the...

  11. 29 CFR 1910.335 - Safeguards for personnel protection.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... danger of head injury from electric shock or burns due to contact with exposed energized parts. (v... circuit parts, each employee shall use insulated tools or handling equipment if the tools or handling... handling equipment, insulated for the circuit voltage, shall be used to remove or install fuses when the...

  12. 29 CFR 1910.335 - Safeguards for personnel protection.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... danger of head injury from electric shock or burns due to contact with exposed energized parts. (v... circuit parts, each employee shall use insulated tools or handling equipment if the tools or handling... handling equipment, insulated for the circuit voltage, shall be used to remove or install fuses when the...

  13. Volunteer Firefighter and EMS Personnel Job Protection Act

    THOMAS, 111th Congress

    Sen. Carper, Thomas R. [D-DE

    2009-05-12

    Senate - 05/12/2009 Read twice and referred to the Committee on Health, Education, Labor, and Pensions. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  14. Effectiveness of Transparent Shields in Protecting Explosive Operations Personnel

    DTIC Science & Technology

    1994-08-01

    secondary fragments; and that the upper torso not be exposed to a thermal flux exceeding 0.62 t cal/-0.7423 cm -s, where t is the exposure time in...of Celotex near the side edges to maintain the air gap between Brazil’s and Groves’ shields, which were taped together. In two tests there was no

  15. Ballistic Properties of Composite Materials for Personnel Protection

    DTIC Science & Technology

    1989-01-01

    Signal Corporation as Spectra 900 or 1000, and in The Netherlands and Japan by DSM Research and Toyobo respectively as Dyneema , Two further...composites, while similar data published by Allied Signal Corporation for Spectra/thermoplastic rosin latex composites also fit equation (4) with K - 236.5...significant difference in the ballistic properties can be identified, However, the low thermoplastic resin latex content (10% by weight) of the Allied

  16. Personnel protection means. Part 1: Safety supervisor manual

    NASA Astrophysics Data System (ADS)

    A manual for use by a safety supervisor in an industrial environment is presented. Italian laws governing safety regulations are reviewed. The main criteria for the choice of safety equipement and for its acquisition, test, distribution and maintenance are discussed. The responsibilities of the safety supervisor are described.

  17. Chemical means of protecting US military personnel from mosquito bites

    USDA-ARS?s Scientific Manuscript database

    Since 1942, the United States Department of Agriculture (USDA) has examined over 30,000 repellents and insecticides for the U.S. military. The repellent research has focused on discovery of repellents that work on clothing, skin, and at a distance (spatial repellents). Borne out of this research is...

  18. Personnel protection through reconnaissance robotics at superfund remedial sites

    SciTech Connect

    Frank, U.; Esposito, C.; Sullivan, D. )

    1992-03-01

    This paper describes the demonstration of a commercially-available robotic platform modified and equipped for air monitoring and the ongoing research for the development of a ground penetrating radar (GPR) system to detect buried chemical waste drums. These robotic devices can ultimately be routinely deployed in the field for the purpose of conducting inherently safe reconnaissance activities during Superfund/SARA remedial operations.

  19. Effects of Protective Clothing on Personnel Performance--Annotated Index

    DTIC Science & Technology

    1986-08-20

    CLOTHING IN THE HEAT ON 00-86 SIGNAL DETECTION OVER THE VISUAL FIELD (U) Army Tank- Automotive Command (Warren, MI) 069 EVALUATION OF COMBAT 4EHICLE GUNNER...thing apparatus at a light (21% V02 max ). and a moderate 41% V02 max ) work level. The mean endurance times were 12% (NS) and 24% (P less than 0.01...protocols were administered. Heart rate (HR). oxygen consumption ( Vo2 ). skin (Ts) and rectal (Tr) temperatures were monitored. The impervious suits results

  20. 29 CFR 1910.335 - Safeguards for personnel protection.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... danger of head injury from electric shock or burns due to contact with exposed energized parts. (v... each employee from shock, burns, or other electrically related injuries while that employee is working... could cause injury due to electric shock, burns, or failure of electric equipment parts: (1) Safety...

  1. Contrast agent choice for intravenous coronary angiography

    NASA Astrophysics Data System (ADS)

    Zeman, H. D.; Siddons, D. P.

    1990-05-01

    The screening of the general population for coronary artery disease would be practical if a method existed for visualizing the extent of occlusion after an intravenous injection of contrast agent. Measurements performed with monochromatic synchrotron radiation X-rays and an iodine-containing contrast agent at the Stanford Synchrotron Radiation Laboratory have shown that such an intravenous angiography procedure would be possible with an adequately intense monochromatic X-ray source. Because of the size and cost of synchrotron radiation facilities it would be desirable to make the most efficient use of the intensity available, while reducing as much as possible the radiation dose experienced by the patient. By choosing contrast agents containing elements with a higher atomic number than iodine, it is possible to both improve the image quality and reduce the patient radiation dose, while using the same synchrotron radiation source. By using Si monochromator crystals with a small mosaic spread, it is possible to increase the X-ray flux available for imaging by over an order of magnitude, without any changes in the storage ring or wiggler magnet. The most critical imaging task for intravenous coronary angiography utilizing synchrotron radiation X-rays is visualizing a coronary artery through the left ventricle or aorta which also contain contrast agent. Calculations have been made of the signal to noise ratio expected for this imaging task for various contrast agents with atomic numbers between that of iodine and bismuth. The X-ray energy spectrum of the X-17 superconduction wiggler beam line at the National Synchrotron Light Source at Brookhaven National Laboratory has been used for these calculations. Both perfect Si crystals and Si crystals with a small mosaic spread are considered as monochromators. Contrast agents containing Gd or Yb seem to have about the optimal calculated signal to noise ratio. Gd-DTPA is already approved for use as a contrast agent for

  2. 4D CT angiography more closely defines intracranial thrombus burden than single-phase CT angiography.

    PubMed

    Frölich, A M J; Schrader, D; Klotz, E; Schramm, R; Wasser, K; Knauth, M; Schramm, P

    2013-10-01

    In patients with acute stroke, the location and extent of intravascular thrombi correlate with clinical and imaging outcomes and have been used to predict the success of intravenous thrombolysis. We hypothesized that 4D-CTA reconstructed from whole-brain CTP more closely outlines intracranial thrombi than conventional single-phase CTA. Sixty-seven patients with anterior circulation occlusion were retrospectively analyzed. For 4D-CTA, temporal maximum intensity projections were calculated that combine all 30 spiral scans of the CTP examination through temporal fusion. Thrombus extent was assessed by a semi-quantitative clot burden score (0-10; in which 0 = complete unilateral anterior circulation occlusion and 10 = patent vasculature). In patients with sufficient collateral flow, the length of the filling defect and corresponding hyperdense middle cerebral artery sign on NCCT were measured. Clot burden on temporal maximum intensity projection (median clot burden score, 7.0; interquartile range, 5.1-8.0) was significantly lower than on single-phase CT angiography (median, 6.0; interquartile range, 4.5-7.0; P < .0001). The length of the hyperdense middle cerebral artery sign (14.30 ± 5.93 mm) showed excellent correlation with the filling defect in the middle cerebral artery on temporal maximum intensity projection (13.40 ± 6.40 mm); this filling defect was larger on single-phase CT angiography (18.08 ± 6.54 mm; P = .043). As the result of an increased sensitivity for collateral flow, 4D-CTA temporal maximum intensity projection more closely outlines intracranial thrombi than conventional single-phase CT angiography. Our findings can be helpful when planning acute neurointervention. Further research is necessary to validate our data and assess the use of 4D-CTA in predicting response to different recanalization strategies.

  3. Imaging Foveal Microvasculature: Optical Coherence Tomography Angiography Versus Adaptive Optics Scanning Light Ophthalmoscope Fluorescein Angiography

    PubMed Central

    Mo, Shelley; Krawitz, Brian; Efstathiadis, Eleni; Geyman, Lawrence; Weitz, Rishard; Chui, Toco Y. P.; Carroll, Joseph; Dubra, Alfredo; Rosen, Richard B.

    2016-01-01

    Purpose To compare the use of optical coherence tomography angiography (OCTA) and adaptive optics scanning light ophthalmoscope fluorescein angiography (AOSLO FA) for characterizing the foveal microvasculature in healthy and vasculopathic eyes. Methods Four healthy controls and 11 vasculopathic patients (4 diabetic retinopathy, 4 retinal vein occlusion, and 3 sickle cell retinopathy) were imaged with OCTA and AOSLO FA. Foveal perfusion maps were semiautomatically skeletonized for quantitative analysis, which included foveal avascular zone (FAZ) metrics (area, perimeter, acircularity index) and vessel density in three concentric annular regions of interest. On each set of OCTA and AOSLO FA images, matching vessel segments were used for lumen diameter measurement. Qualitative image comparisons were performed by visual identification of microaneurysms, vessel loops, leakage, and vessel segments. Results Adaptive optics scanning light ophthalmoscope FA and OCTA showed no statistically significant differences in FAZ perimeter, acircularity index, and vessel densities. Foveal avascular zone area, however, showed a small but statistically significant difference of 1.8% (P = 0.004). Lumen diameter was significantly larger on OCTA (mean difference 5.7 μm, P < 0.001). Microaneurysms, fine structure of vessel loops, leakage, and some vessel segments were visible on AOSLO FA but not OCTA, while blood vessels obscured by leakage were visible only on OCTA. Conclusions Optical coherence tomography angiography is comparable to AOSLO FA at imaging the foveal microvasculature except for differences in FAZ area, lumen diameter, and some qualitative features. These results, together with its ease of use, short acquisition time, and avoidance of potentially phototoxic blue light, support OCTA as a tool for monitoring ocular pathology and detecting early disease. PMID:27409463

  4. 5 CFR 352.508 - Appeals to the Merit Systems Protection Board.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Appeals to the Merit Systems Protection Board. 352.508 Section 352.508 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE... Foreign Assistance Act of 1961 § 352.508 Appeals to the Merit Systems Protection Board. (a) If an...

  5. Seventh Personnel Dosimetry Intercomparison Study

    SciTech Connect

    Swaja, R.E.; Sims, C.S.; Greene, R.T.

    1981-12-01

    The Seventh Personnel Dosimetry Intercomparison Study was conducted March 31-April 10, 1981, at the Oak Ridge National Laboratory. Dosimeters from 34 participating agencies were mounted on anthropomorphic phantoms and exposed to a range of low-level dose equivalents (1.5-15.0mSv neutron and 0.1-2.8 mSv gamma) which could be encountered during routine personnel monitoring in mixed radiation fields. The Health Physics Research Reactor, operating in the steady-state mode, served as the source of radiation for two equivalent sets of six separate exposures. Lucite and concrete shields along with the unshielded reactor provided three different neutron and gamma spectra for five of the exposures in each set. Results reported by the participating agencies showed that no single type of neutron dosimeter exhibited acceptable performance characteristics for all mixed-field environments encountered in this study. Film, TLD, and TLD-albed dosimeters were found to be inadequate for neutron dose equivalent measurements when large numbers of slow neutrons are present unless significant corrections are made to measured results. Track dosimeters indicated the least sensitivity to spectral characteristics, but did not always yield to the most accurate results. Gamma dose measurements showed that TLD-700 dosimeters produced significantly more accurate results than film dosimeters which tend to overestimate gamma doses in mixed radiation fields.

  6. Correlation between magnetic resonance angiography (MRA) and quantitative coronary angiography (QCA) in ectatic coronary vessels.

    PubMed

    Mavrogeni, Sophie I; Manginas, Athanassios; Papadakis, Emmanouil; Foussas, Stefanos; Douskou, Marouso; Baras, Panagiotis; Seimenis, Ioannis; Cokkinos, Dennis V

    2004-01-01

    Coronary artery ectasia (CAE) is defined as a dilatation of an arterial segment to a diameter at least 1.5 times that of the adjacent normal artery. The correct follow-up of ectatic vessels is hampered by the need for repeat angiograms. In this work we compared quantitative coronary angiography (QCA) measurements of the diameter of the proximal most ectatic part of coronary vessels, with corresponding measurements obtained by magnetic resonance angiography (MRA) using both gradient echo and turbo spin echo imaging sequences. Fifteen patients (14 male), aged 45-65 years, with known CAE were prospectively studied. Two electrocardiogram (ECG)-triggered pulse sequences were implemented for coronary magnetic resonance angiography. The first was a three-dimensional (3D), segmented, k-space gradient-echo sequence, employing a T2-weighted preparation prepulse and a frequency-selective, fat-saturation prepulse to enhance "white blood" (WB) contrast of the coronary arteries. The second sequence was an M2D dual Inversion Recovery (IR) Turbo Spin-Echo with a linear k-space acquisition scheme, providing "black-blood" (BB) contrast of the coronaries. All scans were carried out with the patient free breathing using a 2D, real-time Navigator beam, for respiratory motion tracking and gating. All patients underwent QCA, and the diameter of the proximal most ectatic part of each vessel was measured and compared with "white-blood" and "black-blood" MRA measurements. The average length of continuously visualized LM, LAD, LCx, and RCA by MRA was 2.5 +/- 0.3, 5.8 +/- 0.8, 3.9 +/- 1.0, and 7.2 +/- 1.2 cm, respectively. There were no statistically significant differences between diameter measurements of the proximal most ectatic part of each vessel, obtained with WB and BB sequences. There was a close correlation between MRA and QCA measurements (r = 0.87, p < 0.001). Bland-Altman analysis showed no systematic differences between the examined methods, over the whole range of vessel

  7. Unusual Congenital Aortic Anomaly with Rare Common Celiamesenteric Trunk Variation: MR Angiography and Digital Substraction Angiography Findings

    SciTech Connect

    Tosun, Ozgur Sanlidilek, Umman; Cetin, Huseyin; Ozdemir, Ozcan; Kurt, Aydin; Sakarya, Mehmet Emin; Tas, Ismet

    2007-09-15

    Magnetic resonance angiography and digital substraction angiography (DSA) findings in a case with a rare congenital thoracoabdominal aortic hypoplasia and common celiamesenteric trunk variation with occlusion of infrarenal abdominal aorta are described here. To our knowledge, this aortic anomaly has not been previously described in the English literature. DSA is the optimum imaging modality for determination of aortic hypoplasia, associated vascular malformations, collateral vessels, and direction of flow within vessels.

  8. 5 CFR 250.202 - Office of Personnel Management responsibilities.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Office of Personnel Management responsibilities. 250.202 Section 250.202 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL MANAGEMENT IN AGENCIES Strategic Human Capital Management § 250.202 Office of Personnel...

  9. 5 CFR 250.202 - Office of Personnel Management responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Office of Personnel Management responsibilities. 250.202 Section 250.202 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL MANAGEMENT IN AGENCIES Strategic Human Capital Management § 250.202 Office of Personnel...

  10. 5 CFR 250.202 - Office of Personnel Management responsibilities.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Office of Personnel Management responsibilities. 250.202 Section 250.202 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL MANAGEMENT IN AGENCIES Strategic Human Capital Management § 250.202 Office of Personnel...

  11. 5 CFR 250.202 - Office of Personnel Management responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Office of Personnel Management responsibilities. 250.202 Section 250.202 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERSONNEL MANAGEMENT IN AGENCIES Strategic Human Capital Management § 250.202 Office of Personnel...

  12. Image quality metrics for optical coherence angiography

    PubMed Central

    Lozzi, Andrea; Agrawal, Anant; Boretsky, Adam; Welle, Cristin G.; Hammer, Daniel X.

    2015-01-01

    We characterized image quality in optical coherence angiography (OCA) en face planes of mouse cortical capillary network in terms of signal-to-noise ratio (SNR) and Weber contrast (Wc) through a novel mask-based segmentation method. The method was used to compare two adjacent B-scan processing algorithms, (1) average absolute difference (AAD) and (2) standard deviation (SD), while varying the number of lateral cross-sections acquired (also known as the gate length, N). AAD and SD are identical at N = 2 and exhibited similar image quality for N<10. However, AAD is relatively less susceptible to bulk tissue motion artifact than SD. SNR and Wc were 15% and 35% higher for AAD from N = 25 to 100. In addition data sets were acquired with two objective lenses with different magnifications to quantify the effect of lateral resolution on fine capillary detection. The lower power objective yielded a significant mean broadening of 17% in Full Width Half Maximum (FWHM) diameter. These results may guide study and device designs for OCA capillary and blood flow quantification. PMID:26203372

  13. Photodynamic therapy monitoring with optical coherence angiography

    PubMed Central

    Sirotkina, M. A.; Matveev, L. A.; Shirmanova, M. V.; Zaitsev, V. Y.; Buyanova, N. L.; Elagin, V. V.; Gelikonov, G. V.; Kuznetsov, S. S.; Kiseleva, E. B.; Moiseev, A. A.; Gamayunov, S. V.; Zagaynova, E. V.; Feldchtein, F. I.; Vitkin, A.; Gladkova, N. D.

    2017-01-01

    Photodynamic therapy (PDT) is a promising modern approach for cancer therapy with low normal tissue toxicity. This study was focused on a vascular-targeting Chlorine E6 mediated PDT. A new angiographic imaging approach known as M-mode-like optical coherence angiography (MML-OCA) was able to sensitively detect PDT-induced microvascular alterations in the mouse ear tumour model CT26. Histological analysis showed that the main mechanisms of vascular PDT was thrombosis of blood vessels and hemorrhage, which agrees with angiographic imaging by MML-OCA. Relationship between MML-OCA-detected early microvascular damage post PDT (within 24 hours) and tumour regression/regrowth was confirmed by histology. The advantages of MML-OCA such as direct image acquisition, fast processing, robust and affordable system opto-electronics, and label-free high contrast 3D visualization of the microvasculature suggest attractive possibilities of this method in practical clinical monitoring of cancer therapies with microvascular involvement. PMID:28148963

  14. Quantitative fluorescence angiography for neurosurgical interventions.

    PubMed

    Weichelt, Claudia; Duscha, Philipp; Steinmeier, Ralf; Meyer, Tobias; Kuß, Julia; Cimalla, Peter; Kirsch, Matthias; Sobottka, Stephan B; Koch, Edmund; Schackert, Gabriele; Morgenstern, Ute

    2013-06-01

    Present methods for quantitative measurement of cerebral perfusion during neurosurgical operations require additional technology for measurement, data acquisition, and processing. This study used conventional fluorescence video angiography--as an established method to visualize blood flow in brain vessels--enhanced by a quantifying perfusion software tool. For these purposes, the fluorescence dye indocyanine green is given intravenously, and after activation by a near-infrared light source the fluorescence signal is recorded. Video data are analyzed by software algorithms to allow quantification of the blood flow. Additionally, perfusion is measured intraoperatively by a reference system. Furthermore, comparing reference measurements using a flow phantom were performed to verify the quantitative blood flow results of the software and to validate the software algorithm. Analysis of intraoperative video data provides characteristic biological parameters. These parameters were implemented in the special flow phantom for experimental validation of the developed software algorithms. Furthermore, various factors that influence the determination of perfusion parameters were analyzed by means of mathematical simulation. Comparing patient measurement, phantom experiment, and computer simulation under certain conditions (variable frame rate, vessel diameter, etc.), the results of the software algorithms are within the range of parameter accuracy of the reference methods. Therefore, the software algorithm for calculating cortical perfusion parameters from video data presents a helpful intraoperative tool without complex additional measurement technology.

  15. Photodynamic therapy monitoring with optical coherence angiography

    NASA Astrophysics Data System (ADS)

    Sirotkina, M. A.; Matveev, L. A.; Shirmanova, M. V.; Zaitsev, V. Y.; Buyanova, N. L.; Elagin, V. V.; Gelikonov, G. V.; Kuznetsov, S. S.; Kiseleva, E. B.; Moiseev, A. A.; Gamayunov, S. V.; Zagaynova, E. V.; Feldchtein, F. I.; Vitkin, A.; Gladkova, N. D.

    2017-02-01

    Photodynamic therapy (PDT) is a promising modern approach for cancer therapy with low normal tissue toxicity. This study was focused on a vascular-targeting Chlorine E6 mediated PDT. A new angiographic imaging approach known as M-mode-like optical coherence angiography (MML-OCA) was able to sensitively detect PDT-induced microvascular alterations in the mouse ear tumour model CT26. Histological analysis showed that the main mechanisms of vascular PDT was thrombosis of blood vessels and hemorrhage, which agrees with angiographic imaging by MML-OCA. Relationship between MML-OCA-detected early microvascular damage post PDT (within 24 hours) and tumour regression/regrowth was confirmed by histology. The advantages of MML-OCA such as direct image acquisition, fast processing, robust and affordable system opto-electronics, and label-free high contrast 3D visualization of the microvasculature suggest attractive possibilities of this method in practical clinical monitoring of cancer therapies with microvascular involvement.

  16. Patient radiation biological risk in computed tomography angiography procedure.

    PubMed

    Alkhorayef, M; Babikir, E; Alrushoud, A; Al-Mohammed, H; Sulieman, A

    2017-02-01

    Computed tomography angiography (CTA) has become the most valuable imaging modality for the diagnosis of blood vessel diseases; however, patients are exposed to high radiation doses and the probability of cancer and other biological effects is increased. The objectives of this study were to measure the patient radiation dose during a CTA procedure and to estimate the radiation dose and biological effects. The study was conducted in two radiology departments equipped with 64-slice CT machines (Aquilion) calibrated according to international protocols. A total of 152 patients underwent brain, lower limb, chest, abdomen, and pelvis examinations. The effective radiation dose was estimated using ImPACT scan software. Cancer and biological risks were estimated using the International Commission on Radiological Protection (ICRP) conversion factors. The mean patient dose value per procedure (dose length product [DLP], mGy·cm) for all examinations was 437.8 ± 166, 568.8 ± 194, 516.0 ± 228, 581.8 ± 175, and 1082.9 ± 290 for the lower limbs, pelvis, abdomen, chest, and cerebral, respectively. The lens of the eye, uterus, and ovaries received high radiation doses compared to thyroid and testis. The overall patient risk per CTA procedure ranged between 15 and 36 cancer risks per 1 million procedures. Patient risk from CTA procedures is high during neck and abdomen procedures. Special concern should be provided to the lens of the eye and thyroid during brain CTA procedures. Patient dose reduction is an important consideration; thus, staff should optimize the radiation dose during CTA procedures.

  17. Diabetic Macular Ischemia Diagnosis: Comparison between Optical Coherence Tomography Angiography and Fluorescein Angiography

    PubMed Central

    Lima, Talita Toledo; Louzada, Ricardo Noguera; Rassi, Alessandra Thome; Isaac, David Leonardo Cruvinel; Avila, Marcos

    2016-01-01

    Purpose. To compare fluorescein angiography (FA) and optical coherence tomography angiography (OCTA) images of foveal avascular zone (FAZ) in patients with diabetic retinopathy (DR) with and without diabetic macular ischemia (DMI). Methods. The Wilcoxon signed-rank test was used to compare area measurements and p values of <0.05 were considered statistically significant. FA and OCTA images were independently graded by 2 observers that reached agreement regarding quantitative DMI according established protocols. The ischemic area was divided into “large” macular ischemia (superior to 0.32 mm2) and “small” (inferior to 0.32 mm2) groups. Quantitative analyses of the FAZ were performed using custom software. Results. Thirty-four eyes from 34 diabetic patients were enrolled. Subjects with DMI presented a mean area on FA and OCTA of 0.68 ± 0.53 mm2 and 0.58 ± 0.35 mm2, respectively (p = 0.1374). Patients without DMI presented a mean area on FA and OCTA of 0.19 ± 0.67 mm2 and 0.20 ± 0.79 mm2, respectively (p = 0.9594). The ICC for the FAZ measurements between the 2 observers on FA and OCTA was 0.96 and 0.92, respectively. Conclusion. OCTA represents a novel technique for the diagnosis of DMI and it may become an alternative to FA for this purpose. PMID:27891250

  18. Dexmedetomidine compared with propofol for pediatric sedation during cerebral angiography.

    PubMed

    Peng, Ke; Li, Jian; Ji, Fu-Hai; Li, Zhi

    2014-06-01

    Sedation of pediatric patients undergoing cerebral angiography is challenging. Although dexmedetomidine is used for sedation in various procedures, it has not been reported for pediatric patients undergoing cerebral angiography. This study compared the safety and efficacy of dexmedetomidine with that of propofol for cerebral angiography in pediatric patients. Sixty-two patients (6-15 years) scheduled for elective cerebral angiography were apportioned randomly and equally to receive either propofol or dexmedetomidine sedation. Patients in the propofol group received an initial bolus of intravenous propofol (1 mg/kg) and a maintenance infusion of 100 μg/kg/min. Patients in the dexmedetomidine group received an initial bolus of intravenous dexmedetomidine (1 μg/kg over 10 min) and a maintenance infusion of 1 μg/kg/h. An additional bolus of propofol 0.5 mg/kg or dexmedetomidine 0.25 μg/kg was repeated if needed. Procedure time, time to recovery and adverse events associated with sedation were recorded. All cerebral angiographies were completed successfully under sedation with dexmedetomidine or propofol. Mean cerebral angiography time was 36 ± 10 min in the propofol group and 31 ± 7 min in the dexmedetomidine group (P = 0.047). The percentage of airway events and total adverse events were significantly higher in the propofol group (P < 0.05). Heart rate decreased in the dexmedetomidine group and mean arterial pressure decreased in the propofol group (P < 0.05, each). Although cerebral angiography can be performed successfully under sedation with either propofol or dexmedetomidine, dexmedetomidine may be a better alternative because of fewer respiratory adverse events.

  19. Early surgery after angiography in patients scheduled for valve replacement.

    PubMed

    Dayan, Victor; Stanham, Roberto; Soca, Gerardo; Genta, Fernando; Mariño, Jorge; Lorenzo, Alvaro

    2017-01-01

    Background There are limited data regarding the risks of cardiac surgery early after coronary angiography in patients scheduled for isolated aortic and/or mitral valve replacement. Our aim was to evaluate the risk of early surgery after coronary angiography in these patients. Methods We retrospectively analyzed data of 1044 patients who underwent isolated aortic and/or mitral valve replacement from 2006 to 2014. Baseline, operative, and postoperative variables were collected. The patients were divided into 3 groups based on the interval between coronary angiography and surgery: ≤3 days ( n = 216), 4-7 days ( n = 109), and ≥8 days ( n = 719). We evaluated hospital mortality and postoperative acute kidney injury. Subgroup analysis was performed according to preoperative creatinine clearance. Results Postoperative creatinine clearance was lower in patients who underwent surgery ≤3 days after coronary angiography (63.57 ± 38.52 mL min(-1)) compared to ≥8 days after coronary angiography (74.56 ± 54.25 mL min(-1), p = 0.015). Patients who underwent surgery ≤3 days after coronary angiography had higher hospital mortality when preoperative creatinine clearance was ≤60 mL min(-1) (12% vs. 4% for creatinine clearance ≤and >60 mL min(-1), respectively; p = 0.039). Predictors of hospital mortality were New York Heart Association class and postoperative creatinine clearance. Conclusion Hospital mortality was higher in patients with decreased preoperative renal function who underwent surgery within the first 3 days after coronary angiography. Delaying surgery in this subgroup of patients could be a good strategy.

  20. Personnel administration can act on cost containment.

    PubMed

    Adams, J

    1980-01-01

    Hosiptal personnel administration programs have the potential to contain costs in a variety of areas, including human resources management, payroll costs, benefits costs, labor turnover, and recruitment costs. Recognizing this, the Maine Society for Hospital Personnel Administration presented a seminar and prepared a guide for trustees and administrators on the role that personnel administration can play in the Voluntary Effort to contain costs. The following article is an adaptation of the information included in the seminar and guide.

  1. Computer-assisted warehouse personnel scheduling

    NASA Astrophysics Data System (ADS)

    Parker, Sandra C.; Malstrom, Eric J.; Usmani, Tariq

    1992-02-01

    A decision support system is developed for personnel scheduling in a multiple warehouse environment. The system incorporates current manpower level, historical data of workers used, empirical load distributions, and performance standards to generate manpower requirements for a specified planning horizon. The software has been developed to be easily adaptable to varying situational details, therefore is widely applicable in different warehouse settings. The system offers personnel managers a valuable tool for evaluating alternative schedules and making intelligent decisions regarding personnel scheduling in warehouses.

  2. Reusable ultralight personnel carrier (RUPC)

    NASA Technical Reports Server (NTRS)

    Clark, B. C., III; Mccandless, B., II

    1992-01-01

    Attention is given to a personnel-carrying space vehicle concept developed to minimize the cost of access to LEO. The RUPC could provide alternate access to Space Station Freedom (SSF) for six passengers per flight. It can also bring and return small amounts of cargo, up to and including one SSF double rack. These capabilities are ideal for utilization flights during man-tended operations at SSF and for crew rotation during permanently manned periods. The RUPC is a reusable conical reentry vehicle and disposable adapter with propulsion and power subsystems. Avionics subsystem benefit from advanced low-power high-performance microelectronics developed for both the civilian and military space sectors. The RUPC core cabin concept has growth potential for other applications, including assured crew return, ground-launched crew rescue, delivery and retrieval of SSF cargo, and crew cabin for flights to the moon.

  3. [Hip replacement in military personnel].

    PubMed

    Maksimov, I B; Paniushin, K A; Brizhan', L K; Buriachenko, B P; Varfolomeev, D I; Mimanchev, O V

    2014-01-01

    Hip joint diseases and injuries are common for orthopedic pathology among military personnel. Hip replacement is one of the most frequent operations. Authors evaluated hip replacement in 136 servicemen treated at the center of traumatology and orthopedics of Burdenko General Military Clinical Hospital of the Ministry of Defense of Russia in 2010-2013. On the basis of the conducted analysis the main disease groups were revealed, peculiarities of pathology among this category of patients. Authors proposed surgical doctrine for the treatment of this contingent. Effective surgical treatment, in particular, hip replacement surgery, conducted with the use of the proposed principles, as a rule, fully functionally cured patients and contributes to return them in the system that contributes to the strengthening of defensibility of the country.

  4. Patient and personnel exposure during extracorporeal lithotripsy.

    PubMed

    Glaze, S; LeBlanc, A D; Bushong, S C; Griffith, D P

    1987-12-01

    Extracorporeal shock wave lithotripsy (ESWL) has provided a nonsurgical approach to treatment of renal stones. The Dornier lithotripter uses dual image intensified x-ray systems to center the stone before treatment. Three imaging modes are offered: a fluoroscopic mode and two video spot filming modes. The average entrance exposure to the stone side of the typical patient at our facility is 2.6 X 10(-3) C kg-1 (10 R) [range: 0.5-7.7 X 10(-3) C kg-1 (2-30 R)] which is comparable and often much less than that reported for percutaneous lithotripsy. Recommendations are made for minimizing patient exposure. Scattered radiation levels in the lithotripter room are presented. We have determined that Pb protective apparel is not required during this procedure provided x-ray operation is temporarily halted should personnel be required to lean directly over the tub to attend to the patient. If the walls of the ESWL room are greater than 1.83 m (6 feet) from the tub, shielding in addition to conventional construction is not required.

  5. Patient and personnel exposure during extracorporeal lithotripsy

    SciTech Connect

    Glaze, S.; LeBlanc, A.D.; Bushong, S.C.; Griffith, D.P.

    1987-12-01

    Extracorporeal shock wave lithotripsy (ESWL) has provided a nonsurgical approach to treatment of renal stones. The Dornier lithotripter uses dual image intensified x-ray systems to center the stone before treatment. Three imaging modes are offered: a fluoroscopic mode and two video spot filming modes. The average entrance exposure to the stone side of the typical patient at our facility is 2.6 X 10(-3) C kg-1 (10 R) (range: 0.5-7.7 X 10(-3) C kg-1 (2-30 R)) which is comparable and often much less than that reported for percutaneous lithotripsy. Recommendations are made for minimizing patient exposure. Scattered radiation levels in the lithotripter room are presented. We have determined that Pb protective apparel is not required during this procedure provided x-ray operation is temporarily halted should personnel be required to lean directly over the tub to attend to the patient. If the walls of the ESWL room are greater than 1.83 m (6 feet) from the tub, shielding in addition to conventional construction is not required.

  6. Qualifications and certification of nondestructive testing personnel

    NASA Technical Reports Server (NTRS)

    Kirk, M. K.

    1971-01-01

    Personnel handbook states criteria for test methods including radiation, ultrasonics, eddy current, liquid penetrant, and magnetic particle. Subject categories are thoroughly defined and substructured.

  7. 34 CFR 303.169 - Personnel standards.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... REHABILITATIVE SERVICES, DEPARTMENT OF EDUCATION EARLY INTERVENTION PROGRAM FOR INFANTS AND TODDLERS WITH... Personnel standards. (a) Each application must include policies and procedures that are consistent with the...

  8. 33 CFR 127.707 - Security personnel.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) WATERFRONT FACILITIES WATERFRONT FACILITIES HANDLING LIQUEFIED NATURAL GAS AND LIQUEFIED HAZARDOUS GAS Waterfront Facilities Handling Liquefied Natural Gas Security § 127.707 Security personnel. The...

  9. Draft registration of health care personnel.

    PubMed

    Lott, C M

    1991-04-01

    A chronic shortage of health care personnel in the active and reserve forces continues to be of concern, particularly in planning for national emergencies or war. Congress has authorized the Selective Service System to establish a system to register and classify health care personnel rapidly in the event a national emergency requires implementation of a draft for the armed services. This paper describes the creation of the Health Care Personnel Delivery System. It provides a brief history of previous military drafts for health care personnel and describes the principal differences in the way a draft registration program may operate in the future.

  10. 49 CFR 179.400-22 - Protective housings.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... protective housing must be operable by personnel wearing heavy gloves and must incorporate provisions for locks or seals. A protective housing and its cover must be constructed of metal not less than 0.119...

  11. Self-contained clothing system provides protection against hazardous environments

    NASA Technical Reports Server (NTRS)

    1966-01-01

    Self-contained clothing system protects personnel against hazardous environments. The clothing has an environmental control system and a complete protection envelope consisting of an outer garment, inner garment, underwear, boots, gloves, and helmet.

  12. 3-T contrast-enhanced MR angiography in evaluation of suspected intracranial aneurysm: comparison with MDCT angiography.

    PubMed

    Nael, Kambiz; Villablanca, J Pablo; Mossaz, Léonard; Pope, Whitney; Juncosa, Alex; Laub, Gerhard; Finn, J Paul

    2008-02-01

    The purpose of this study was to prospectively evaluate a high-spatial-resolution contrast-enhanced 3-T MR angiography protocol for detection and characterization of intracranial aneurysms and to compare the results with those of MDCT angiography. Forty-one patients with suspected intracranial aneurysm underwent high-spatial-resolution 3D contrast-enhanced MR angiography and CT angiography (CTA). With a generalized autocalibrating partially parallel acquisition algorithm with an acceleration factor of 4 at 3 T, contrast-enhanced MR angiographic images were acquired over 20 seconds with a spatial-resolution of 0.7 x 0.7 x 0.8 mm. CTA images were acquired with a spatial resolution of 0.35 x 0.35 x 0.8 mm on a 16-MDCT scanner in 17 seconds. The images from the two studies were evaluated independently by two neuroradiologists for image quality, presence of aneurysm, and characterization of aneurysm. The dimensions of the aneurysm were measured independently with both techniques. A total of 25 aneurysms were identified with both contrast-enhanced MR angiography and CTA. A comparative analysis of detection and depiction of aneurysms showed excellent interobserver agreement for both contrast-enhanced MR angiography (kappa = 0.81) and CTA (kappa = 0.91) images. There was significant correlation between the techniques for both qualitative assessment of aneurysm depiction (rho = 0.92; 95% CI, 0.88-0.95) and quantitative dimensional measurement of aneurysm size (r = 0.94; 95% CI, 0.92-0.97). Contrast-enhanced MR angiography at 3 T is reliable for evaluation and characterization of intracranial aneurysms. The results are comparable with those of MDCTA.

  13. Hepatic Artery Angiography and Embolization for Hemobilia Following Laparoscopic Cholecystectomy

    SciTech Connect

    Nicholson, Tony; Travis, Simon; Ettles, Duncan; Dyet, John; Sedman, Peter; Wedgewood, Kevin; Royston, Christopher

    1999-01-15

    Purpose: The effectiveness of angiography and embolization in diagnosis and treatment were assessed in a cohort of patients presenting with upper gastrointestinal hemorrhage secondary to hepatic artery pseudoaneurysm following laparoscopic cholecystectomy. Methods: Over a 6-year period 1513 laparoscopic cholecystectomies were carried out in our region. Nine of these patients (0.6%) developed significant upper gastrointestinal bleeding, 5-43 days after surgery. All underwent emergency celiac and selective right hepatic artery angiography. All were treated by coil embolization of the right hepatic artery proximal and distal to the bleeding point. Results: Pseudoaneurysms of the hepatic artery adjacent to cholecystectomy clips were demonstrated in all nine patients at selective right hepatic angiography. In three patients celiac axis angiography alone failed to demonstrate the pseudoaneurysm. Embolization controlled hemorrhage in all patients with no further bleeding and no further intervention. One patient developed a candidal liver abscess in the post-procedure period. All patients are alive and well at follow-up. Conclusion: Selective right hepatic angiography is vital in the diagnosis of upper gastrointestinal hemorrhage following laparoscopic cholecystectomy. Embolization offers the advantage of minimally invasive treatment in unstable patients, does not disrupt recent biliary reconstruction, allows distal as well as proximal control of the hepatic artery, and is an effective treatment for this potentially life-threatening complication.

  14. [Vascular complications of percutaneous transradial coronary angiography and coronary intervention].

    PubMed

    Prull, Magnus W; Brandts, Bodo; Rust, Henning; Trappe, Hans-Joachim

    2005-07-15

    Vascular complications following transradial coronary angiography and coronary intervention could severely compromise perfusion of the hand. Drastic complications after cannulation of the radial artery (ischemia of the hand with occlusion of the digital arteries) are published only in brief reports. This study investigates whether percutaneous transradial artery coronary angiography/intervention results in vascular complications. 93 patients were consecutively studied over a 4-month period. The following data were recorded before and after coronary angiography and/or intervention: diameter of the radial artery, blood volume, flow velocity, and occlusion pressure. Graduation of the stenosis after intervention was done according to the principle of the peak velocity ratio. A transradial coronary angiography/intervention was performed in 93 patients (75 men, mean age 62.5 years) in case of an unremarkable Allen test. Procedural success rate was 97.2%. The intervention could not be completed successfully in three patients (2.8%). Mean vessel diameter increased from 2.46 +/- 1.7 mm (standard deviation [SD]) before intervention to 2.78 +/- 0.69 mm (SD) after intervention; this increase was statistically significant (p = 0.002). Changes in blood flow, flow velocity and occlusion pressure did not reach significance. Vascular complications were seen in nine of 93 patients (10%) after the procedure. No patient mentioned discomfort. No perfusion deficit of the digital arteries was seen. The transradial coronary angiography and intervention is a safe method with a high procedural success rate.

  15. Acute management and outcomes of iatrogenic dissections during cerebral angiography.

    PubMed

    Groves, Andrew P; Kansagra, Akash P; Cross, DeWitte T; Moran, Christopher J; Derdeyn, Colin P

    2017-05-01

    Iatrogenic dissection is a known complication of cerebral angiography, but the clinical outcomes and optimal treatment of these patients is not well established. We sought to review our experience with cerebral angiography to determine the incidence of iatrogenic dissections along with clinical outcomes associated with a generally conservative treatment strategy. We retrospectively reviewed clinical records for all patients that underwent cerebral angiography between March 2002 and May 2015. Demographic information, angiography reports, follow-up CT and MRI reports, and follow-up clinical notes were reviewed. 17 418 cerebral angiograms were performed during the review period, including 13 485 diagnostic angiograms and 3933 endovascular interventional procedures. 68 iatrogenic dissections were identified, for a per procedure incidence of 0.39%. The vertebral artery was the most commonly dissected vessel (49/68, 72%). 67 of 68 cases (98.5%) were managed conservatively with either no treatment or medical therapy alone. There were two adverse events potentially attributable to the dissections, only one of which was symptomatic. Iatrogenic dissections occur infrequently during cerebral angiography. When dissections do occur, most cases can be safely managed without further intervention in the acute setting. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  16. 46 CFR Sec. 5 - Measures to protect ship's payrolls.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 8 2011-10-01 2011-10-01 false Measures to protect ship's payrolls. Sec. 5 Section 5... SHIP'S PERSONNEL Sec. 5 Measures to protect ship's payrolls. (a) General Agents are not required to... paying off the crew should be either the Master, or purser, or some other member of the ship's personnel...

  17. 46 CFR Sec. 5 - Measures to protect ship's payrolls.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 8 2014-10-01 2014-10-01 false Measures to protect ship's payrolls. Sec. 5 Section 5... SHIP'S PERSONNEL Sec. 5 Measures to protect ship's payrolls. (a) General Agents are not required to... paying off the crew should be either the Master, or purser, or some other member of the ship's personnel...

  18. 46 CFR Sec. 5 - Measures to protect ship's payrolls.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 8 2013-10-01 2013-10-01 false Measures to protect ship's payrolls. Sec. 5 Section 5... SHIP'S PERSONNEL Sec. 5 Measures to protect ship's payrolls. (a) General Agents are not required to... paying off the crew should be either the Master, or purser, or some other member of the ship's personnel...

  19. Transient Global Amnesia following Neural and Cardiac Angiography May Be Related to Ischemia

    PubMed Central

    Zhang, Yang; Chen, Ming; Bao, Shengde

    2016-01-01

    Introduction. Transient global amnesia (TGA) following angiography is rare, and the pathogenesis has not been illustrated clearly till now. The aim of this research is to explore the pathogenesis of TGA following angiography by analyzing our data and reviewing the literature. Methods. We retrospectively studied 20836 cases with angiography in our hospital between 2007 and 2015 and found 9 cases with TGA following angiography. The data of these 9 cases were analyzed. Results. We found all 9 cases with TGA following neural angiography (5 in 4360) or cardiac angiography (4 in 8817) and no case with TGA following peripheral angiography (0 in 7659). Statistical difference was found when comparing the neural and cardiac angiography group with peripheral group (p = 0.022). Two cases with TGA were confirmed with small acute infarctions in hippocampus after angiography. This might be related to the microemboli which were rushed into vertebral artery following blood flow during neural angiography or cardiac angiography. There was no statistical difference when comparing the different approaches for angiography (p = 0.82) and different contrast agents (p = 0.619). Conclusion. Based on the positive findings of imaging study and our analysis, we speculate that ischemia in the medial temporal lobe with the involvement of the hippocampus might be an important reason of TGA following angiography. PMID:27419129

  20. 5 CFR 353.302 - Retention protections.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Retention protections. 353.302 Section... TO DUTY FROM UNIFORMED SERVICE OR COMPENSABLE INJURY Compensable Injury § 353.302 Retention protections. An injured employee enjoys no special protection in a reduction in force. Separation by reduction...

  1. Key Personnel and “Long Distance” Settings: Determining Who Must Report Financial Conflict of Interest

    PubMed Central

    Lynch, John; Lindsell, Chris J.

    2010-01-01

    Conflicts of interest can impact the integrity of scientific research. While public imagination has focused on scientists, regulatory discourse recognizes a broader range of individuals who might have financial COIs. This essay asks, for personnel who enroll subjects at a physical and organizational remove from the primary research team, whether reporting COI to an institutional review board or COI committee protects research integrity. After examining definitions of COI, regulations on COI, and rubrics for evaluating COI policies, we argue that requiring recruitment personnel working at a distance from the primary research team to report potential COI protects neither research integrity nor human subjects. PMID:20597019

  2. Key personnel and "long distance" settings: determining who must report financial conflict of interest.

    PubMed

    Lynch, John; Lindsell, Christopher J

    2010-07-01

    Conflicts of interest (COIs) can impact the integrity of scientific research. While public imagination has focused on scientists, regulatory discourse recognizes a broader range of individuals who might have financial COIs. This essay asks, for personnel who enroll subjects at a physical and organizational remove from the primary research team, whether reporting COI to an institutional review board or COI committee protects research integrity. After examining definitions of COI, regulations on COI, and rubrics for evaluating COI policies, we argue that requiring recruitment personnel who work at a distance from the primary research team to report potential COI protects neither research integrity nor human subjects.

  3. 10 CFR 39.65 - Personnel monitoring.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 1 2012-01-01 2012-01-01 false Personnel monitoring. 39.65 Section 39.65 Energy NUCLEAR REGULATORY COMMISSION LICENSES AND RADIATION SAFETY REQUIREMENTS FOR WELL LOGGING Radiation Safety Requirements § 39.65 Personnel monitoring. (a) The licensee may not permit an individual to act as a...

  4. 21 CFR 606.20 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 7 2011-04-01 2010-04-01 true Personnel. 606.20 Section 606.20 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) BIOLOGICS CURRENT GOOD MANUFACTURING PRACTICE FOR BLOOD AND BLOOD COMPONENTS Organization and Personnel §...

  5. 21 CFR 211.28 - Personnel responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Personnel responsibilities. 211.28 Section 211.28 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Organization and Personnel §...

  6. 21 CFR 225.10 - Personnel.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 4 2012-04-01 2012-04-01 false Personnel. 225.10 Section 225.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS General Provisions § 225.10 Personnel....

  7. 21 CFR 225.10 - Personnel.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 4 2013-04-01 2013-04-01 false Personnel. 225.10 Section 225.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS General Provisions § 225.10 Personnel....

  8. 21 CFR 225.10 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 4 2011-04-01 2011-04-01 false Personnel. 225.10 Section 225.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS General Provisions § 225.10 Personnel....

  9. 21 CFR 225.10 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Personnel. 225.10 Section 225.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS General Provisions § 225.10 Personnel....

  10. 21 CFR 211.25 - Personnel qualifications.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Personnel qualifications. 211.25 Section 211.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Organization and Personnel §...

  11. 21 CFR 225.10 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 4 2014-04-01 2014-04-01 false Personnel. 225.10 Section 225.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS General Provisions § 225.10 Personnel....

  12. Pupil Personnel Services: Statement of Functions.

    ERIC Educational Resources Information Center

    Cardinale, Anthony

    This statement of function for pupil personnel services (PPS) in the Department of Defense Dependents Schools (DDDS) focuses on the support role of pupil personnel workers. General, program, and specific functions of school counselors and psychologists, social workers, educational prescriptionists, school health nurses, and resident hall advisors…

  13. Pupil Personnel Services: Material Review List Recommendations.

    ERIC Educational Resources Information Center

    Cardinale, Anthony

    This list of materials provides recommendations to counselors and guidance personnel for the purchase of materials for pupil personnel services programs in the Department of Defense Dependents Schools (DDDS). The listing, based on staff reviews in each of the six DDDS regions, is divided into 10 content areas: (1) assessment and evaluation; (2)…

  14. The Implementation of the Program Personnel Support

    ERIC Educational Resources Information Center

    Veynbender, Tatyana; Vershinina, Svetlana

    2016-01-01

    The article contains analysis software products used in the preparation of professionals through which they can realize themselves in this industry. The aim of the study is the analysis of personnel petroleum education in specialized university. The result is a sociological study on the question of the need and importance of personnel support…

  15. 9 CFR 2.32 - Personnel qualifications.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 1 2012-01-01 2012-01-01 false Personnel qualifications. 2.32 Section 2.32 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.32 Personnel qualifications. (a) It shall be...

  16. 9 CFR 2.32 - Personnel qualifications.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 1 2013-01-01 2013-01-01 false Personnel qualifications. 2.32 Section 2.32 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.32 Personnel qualifications. (a) It shall be...

  17. 9 CFR 2.32 - Personnel qualifications.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 1 2014-01-01 2014-01-01 false Personnel qualifications. 2.32 Section 2.32 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.32 Personnel qualifications. (a) It shall be...

  18. 9 CFR 2.32 - Personnel qualifications.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Personnel qualifications. 2.32 Section 2.32 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ANIMAL WELFARE REGULATIONS Research Facilities § 2.32 Personnel qualifications. (a) It shall be...

  19. Modeling Personnel Turnover in the Parametric Organization

    NASA Technical Reports Server (NTRS)

    Dean, Edwin B.

    1991-01-01

    A primary issue in organizing a new parametric cost analysis function is to determine the skill mix and number of personnel required. The skill mix can be obtained by a functional decomposition of the tasks required within the organization and a matrixed correlation with educational or experience backgrounds. The number of personnel is a function of the skills required to cover all tasks, personnel skill background and cross training, the intensity of the workload for each task, migration through various tasks by personnel along a career path, personnel hiring limitations imposed by management and the applicant marketplace, personnel training limitations imposed by management and personnel capability, and the rate at which personnel leave the organization for whatever reason. Faced with the task of relating all of these organizational facets in order to grow a parametric cost analysis (PCA) organization from scratch, it was decided that a dynamic model was required in order to account for the obvious dynamics of the forming organization. The challenge was to create such a simple model which would be credible during all phases of organizational development. The model development process was broken down into the activities of determining the tasks required for PCA, determining the skills required for each PCA task, determining the skills available in the applicant marketplace, determining the structure of the dynamic model, implementing the dynamic model, and testing the dynamic model.

  20. Job Attitudes of Air National Guard Personnel.

    DTIC Science & Technology

    1986-04-01

    1 CHAPTER FOUR--RESULTS Examination 1-- Analysis of Demographic I nformation...personnel and how these attitudes compare with those of Air Force personnel, an analysis of the results of the Leadership and Management Development Center’s...discusses the LMDC/OAP survey instrument used, how the survey was administered, subjects surveyed and the data analysis procedures. Chapter Four presents

  1. 21 CFR 114.10 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Personnel. 114.10 Section 114.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION ACIDIFIED FOODS General Provisions § 114.10 Personnel. All operators of processing and...

  2. 10 CFR 39.65 - Personnel monitoring.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 1 2013-01-01 2013-01-01 false Personnel monitoring. 39.65 Section 39.65 Energy NUCLEAR REGULATORY COMMISSION LICENSES AND RADIATION SAFETY REQUIREMENTS FOR WELL LOGGING Radiation Safety Requirements § 39.65 Personnel monitoring. (a) The licensee may not permit an individual to act as a logging...

  3. United States Health Workforce Personnel Factbook.

    ERIC Educational Resources Information Center

    Health Resources and Services Administration (DHHS/PHS), Rockville, MD. Bureau of Health Professions.

    This factbook is a compilation of data from secondary sources such as the American Medical Association and the Federal Bureau of Labor Statistics. It includes information on the supply of health personnel in several disciplines, including physicians, physician assistants, podiatrists, dentists, nursing personnel, optometrists, pharmacists,…

  4. 33 CFR 143.105 - Personnel landings.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Personnel landings. 143.105 Section 143.105 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES DESIGN AND EQUIPMENT OCS Facilities § 143.105 Personnel landings....

  5. Managing the Reduction in Military Personnel

    DTIC Science & Technology

    1990-07-01

    second, and possibly third reenlistments; and selection of some personnel for early retirement . A Sustaining Level of Accessions. The long-term size...Air Force might be selected for involuntary early retirement in 1991. This number would represent about 5 percent of personnel eligible for retirement

  6. Management & Supervision Personnel Administration Training; General Reference.

    ERIC Educational Resources Information Center

    United States Government Printing Office, Washington, DC. Training and Career Development Div.

    This report lists 329 books in the library of the Training and Career Development Division of the Personnel Service. The books are listed under six categories. They are: personnel administration (46), management and supervision (60), general reference (57), training (20), American Management Association (AMA) publications (118), and United States…

  7. The Quiet Revolution in Public Personnel Laws

    ERIC Educational Resources Information Center

    Couturier, Jean J.

    1976-01-01

    Discusses Chicago's recent adoption of a new personnel system patterned closely after the Model Public Personnel Administration Law developed by the National Civil Service League (NCSL). Describes major provisions of NCSL's model law and relates the process used by NCSL to develop, evaluate, and encourage adoption of the model law. (JG)

  8. 14 CFR 13.21 - Military personnel.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Military personnel. 13.21 Section 13.21... INVESTIGATIVE AND ENFORCEMENT PROCEDURES Legal Enforcement Actions § 13.21 Military personnel. If a report made... civilian employee of the Department of Defense who is subject to the Uniform Code of Military Justice (10...

  9. 49 CFR 1503.407 - Military personnel.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 9 2014-10-01 2014-10-01 false Military personnel. 1503.407 Section 1503.407... Assessment of Civil Penalties by TSA § 1503.407 Military personnel. If a report made under this part... the Department of Defense who is subject to the Uniform Code of Military Justice (10 U.S.C. chapter...

  10. 7 CFR 1400.213 - Military personnel.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Military personnel. 1400.213 Section 1400.213... AND SUBSEQUENT CROP, PROGRAM, OR FISCAL YEARS Payment Eligibility § 1400.213 Military personnel. If a person is called to active duty in the military before a determination is made that the person...

  11. 7 CFR 1400.213 - Military personnel.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false Military personnel. 1400.213 Section 1400.213... AND SUBSEQUENT CROP, PROGRAM, OR FISCAL YEARS Payment Eligibility § 1400.213 Military personnel. If a person is called to active duty in the military before a determination is made that the person...

  12. 49 CFR 1503.407 - Military personnel.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 9 2012-10-01 2012-10-01 false Military personnel. 1503.407 Section 1503.407... Assessment of Civil Penalties by TSA § 1503.407 Military personnel. If a report made under this part... the Department of Defense who is subject to the Uniform Code of Military Justice (10 U.S.C. chapter...

  13. 49 CFR 1503.407 - Military personnel.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 9 2013-10-01 2013-10-01 false Military personnel. 1503.407 Section 1503.407... Assessment of Civil Penalties by TSA § 1503.407 Military personnel. If a report made under this part... the Department of Defense who is subject to the Uniform Code of Military Justice (10 U.S.C. chapter...

  14. 14 CFR 13.21 - Military personnel.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Military personnel. 13.21 Section 13.21... INVESTIGATIVE AND ENFORCEMENT PROCEDURES Legal Enforcement Actions § 13.21 Military personnel. If a report made... civilian employee of the Department of Defense who is subject to the Uniform Code of Military Justice (10...

  15. 14 CFR 13.21 - Military personnel.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Military personnel. 13.21 Section 13.21... INVESTIGATIVE AND ENFORCEMENT PROCEDURES Legal Enforcement Actions § 13.21 Military personnel. If a report made... civilian employee of the Department of Defense who is subject to the Uniform Code of Military Justice (10...

  16. 7 CFR 1400.213 - Military personnel.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Military personnel. 1400.213 Section 1400.213... AND SUBSEQUENT CROP, PROGRAM, OR FISCAL YEARS Payment Eligibility § 1400.213 Military personnel. If a person is called to active duty in the military before a determination is made that the person...

  17. 7 CFR 1400.213 - Military personnel.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false Military personnel. 1400.213 Section 1400.213... AND SUBSEQUENT CROP, PROGRAM, OR FISCAL YEARS Payment Eligibility § 1400.213 Military personnel. If a person is called to active duty in the military before a determination is made that the person...

  18. 33 CFR 154.840 - Personnel training.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Personnel training. 154.840... Personnel training. (a) A person in charge of a transfer operation utilizing a vapor control system must have completed a training program covering the particular system installed at the facility. Training...

  19. 33 CFR 154.840 - Personnel training.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Personnel training. 154.840... Personnel training. (a) A person in charge of a transfer operation utilizing a vapor control system must have completed a training program covering the particular system installed at the facility. Training...

  20. 33 CFR 154.840 - Personnel training.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Personnel training. 154.840... Personnel training. (a) A person in charge of a transfer operation utilizing a vapor control system must have completed a training program covering the particular system installed at the facility. Training...

  1. 21 CFR 211.25 - Personnel qualifications.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 4 2011-04-01 2011-04-01 false Personnel qualifications. 211.25 Section 211.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS Organization and Personnel § 211...

  2. Personnel Utilization in Libraries, Selected Papers.

    ERIC Educational Resources Information Center

    Rockwood, Ruth H., Ed.

    An institute on the utilization of personnel in libraries was conducted by the Florida State University School of Library Science in October, 1969. Papers presented are grouped into the following three broad categories: (1) changing attitudes toward personnel administration, (2) procedures for selecting middle management and (3) ways and means of…

  3. 21 CFR 820.25 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Personnel. 820.25 Section 820.25 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES QUALITY SYSTEM REGULATION Quality System Requirements § 820.25 Personnel. (a) General. Each...

  4. A Systems Approach to Student Personnel Services.

    ERIC Educational Resources Information Center

    Norfleet, Morris

    Increased enrollment and student activism has created a situation within student personnel services that almost defies most management systems. A systems approach can enable student personnel services to evaluate what they are doing to determine if counselors are making a difference in the lives of students. The characteristics of this approach…

  5. 21 CFR 226.10 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Personnel. 226.10 Section 226.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) DRUGS: GENERAL CURRENT GOOD MANUFACTURING PRACTICE FOR TYPE A MEDICATED ARTICLES General Provisions § 226.10 Personnel...

  6. 33 CFR 127.707 - Security personnel.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security personnel. 127.707 Section 127.707 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED... Waterfront Facilities Handling Liquefied Natural Gas Security § 127.707 Security personnel. The...

  7. 33 CFR 127.707 - Security personnel.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security personnel. 127.707 Section 127.707 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED... Waterfront Facilities Handling Liquefied Natural Gas Security § 127.707 Security personnel. The...

  8. 33 CFR 127.707 - Security personnel.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security personnel. 127.707 Section 127.707 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED... Waterfront Facilities Handling Liquefied Natural Gas Security § 127.707 Security personnel. The...

  9. 33 CFR 127.707 - Security personnel.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security personnel. 127.707 Section 127.707 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED... Waterfront Facilities Handling Liquefied Natural Gas Security § 127.707 Security personnel. The...

  10. 20 CFR 416.1021 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Personnel. 416.1021 Section 416.1021 Employees' Benefits SOCIAL SECURITY ADMINISTRATION SUPPLEMENTAL SECURITY INCOME FOR THE AGED, BLIND, AND DISABLED Determinations of Disability Administrative Responsibilities and Requirements § 416.1021 Personnel...

  11. 20 CFR 404.1621 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Personnel. 404.1621 Section 404.1621 Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) Determinations of Disability Administrative Responsibilities and Requirements § 404.1621 Personnel. (a) Equal...

  12. Public Schools: Support Personnel, 2003-04.

    ERIC Educational Resources Information Center

    Wenger, Cheryl L., Comp.

    2004-01-01

    This listing contains numerical/statistical data on support personnel in Pennsylvania for 2003-04 as reported by school districts, intermediate units, area vocational-technical schools, charter schools, and consortium-operated alternative high schools that employ staff (e.g., Washington County Alternative School). Support personnel are grouped…

  13. Roadmap for Navy Civilian Personnel Research

    DTIC Science & Technology

    1984-05-10

    establishment, recom- mended changes, and pointed out desirable avenues for further research. Beltramo 1974 discussed cost issues related to the...Strategies," Public Personnel Management Journal, 1980, 184-191. Beltramo , M.N. Considering the cost of DoD personnel: A look at some issues requiring

  14. 21 CFR 820.25 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... QUALITY SYSTEM REGULATION Quality System Requirements § 820.25 Personnel. (a) General. Each manufacturer... their specific jobs. (2) Personnel who perform verification and validation activities shall be made aware of defects and errors that may be encountered as part of their job functions....

  15. Support Personnel in Schools: Characteristics and Importance

    ERIC Educational Resources Information Center

    Conley, Sharon; Gould, Jewell; Levine, Harriet

    2010-01-01

    Purpose: Despite the critical role of support personnel in education, the literature about their supervision has been less than informative. In an effort to provide additional guidance to school leaders seeking to improve the supervision of such personnel, the purpose of this paper is to examine and compare three distinct groups of support…

  16. Michigan's Comprehensive Vocational Education Personnel Development Project.

    ERIC Educational Resources Information Center

    Ferns, George W.; Callahan, Gwen

    The report describes a project aimed at meeting inservice personnel development needs of secondary and postsecondary vocational educators in Michigan. Following an overview which details the development of the project, personnel categories, major events, and a seven-step process model, the report is arranged into 6 parts. The first component of…

  17. 21 CFR 114.10 - Personnel.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 2 2012-04-01 2012-04-01 false Personnel. 114.10 Section 114.10 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN CONSUMPTION ACIDIFIED FOODS General Provisions § 114.10 Personnel. All operators of processing and packaging...

  18. Misdirected Missionaries: Personnel Officers in Academe.

    ERIC Educational Resources Information Center

    Scott, Robert A.

    Personnel officers, like other middle-level collegiate administrators, have become so concerned with their status on campus that they have forgotten their role, which is to serve: to serve the goals of the institution, which are or should be educational goals established by the faculty and its leaders. Personnel is now a vulnerable area, but its…

  19. 21 CFR 21.32 - Personnel records.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... Personnel Management, i.e., systems that: (i) The Office of Personnel Management maintains. (ii) Are maintained by the Division of Human Resources Management, Food and Drug Administration. (iii) Are maintained... accordance with 5 CFR 297.106, the Director, Division of Human Resources Management (HFA-400), Food and Drug...

  20. Student Personnel--All Hail and Farewell

    ERIC Educational Resources Information Center

    Crookston, Burns

    1976-01-01

    The alternating use and misuse of the terms student personnel work, student affairs and student development are discussed thoroughly. Here are recommendations: "student personnel work" should be put to rest; "student affairs" should be used in reference to actual services; and "student development" should apply to related philosophy and underlying…

  1. 34 CFR 300.207 - Personnel development.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 34 Education 2 2013-07-01 2013-07-01 false Personnel development. 300.207 Section 300.207 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION... CHILDREN WITH DISABILITIES Local Educational Agency Eligibility § 300.207 Personnel development. The LEA...

  2. 34 CFR 300.207 - Personnel development.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 2 2010-07-01 2010-07-01 false Personnel development. 300.207 Section 300.207 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION... CHILDREN WITH DISABILITIES Local Educational Agency Eligibility § 300.207 Personnel development. The LEA...

  3. 34 CFR 300.207 - Personnel development.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 34 Education 2 2011-07-01 2010-07-01 true Personnel development. 300.207 Section 300.207 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION AND... DISABILITIES Local Educational Agency Eligibility § 300.207 Personnel development. The LEA must ensure that all...

  4. 34 CFR 300.207 - Personnel development.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 34 Education 2 2012-07-01 2012-07-01 false Personnel development. 300.207 Section 300.207 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION... CHILDREN WITH DISABILITIES Local Educational Agency Eligibility § 300.207 Personnel development. The LEA...

  5. 34 CFR 300.207 - Personnel development.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 34 Education 2 2014-07-01 2013-07-01 true Personnel development. 300.207 Section 300.207 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF SPECIAL EDUCATION AND... DISABILITIES Local Educational Agency Eligibility § 300.207 Personnel development. The LEA must ensure that all...

  6. 44 CFR 312.5 - Personnel.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... SECURITY PREPAREDNESS USE OF CIVIL DEFENSE PERSONNEL, MATERIALS, AND FACILITIES FOR NATURAL DISASTER... contributions for training and education expenses. The following use of such personnel for natural disaster...-related disasters, States and their political subdivisions may include and provide for natural...

  7. 44 CFR 312.5 - Personnel.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... SECURITY PREPAREDNESS USE OF CIVIL DEFENSE PERSONNEL, MATERIALS, AND FACILITIES FOR NATURAL DISASTER... contributions for training and education expenses. The following use of such personnel for natural disaster...-related disasters, States and their political subdivisions may include and provide for natural...

  8. 44 CFR 312.5 - Personnel.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... SECURITY PREPAREDNESS USE OF CIVIL DEFENSE PERSONNEL, MATERIALS, AND FACILITIES FOR NATURAL DISASTER... contributions for training and education expenses. The following use of such personnel for natural disaster...-related disasters, States and their political subdivisions may include and provide for natural...

  9. 44 CFR 312.5 - Personnel.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... PREPAREDNESS USE OF CIVIL DEFENSE PERSONNEL, MATERIALS, AND FACILITIES FOR NATURAL DISASTER PURPOSES § 312.5... training and education expenses. The following use of such personnel for natural disaster purposes is..., States and their political subdivisions may include and provide for natural disasters. (b)...

  10. 44 CFR 312.5 - Personnel.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... SECURITY PREPAREDNESS USE OF CIVIL DEFENSE PERSONNEL, MATERIALS, AND FACILITIES FOR NATURAL DISASTER... contributions for training and education expenses. The following use of such personnel for natural disaster...-related disasters, States and their political subdivisions may include and provide for natural...

  11. Personnel Management: Stewardship of Human Resources

    ERIC Educational Resources Information Center

    MacLean, Douglas G.

    1976-01-01

    The personnel function of top management is examined by first studying the environment in which top management functions. The basic skills required to perform the function are discussed. Against this background, six elements of personnel management in colleges and universities are considered: goals and objectives, organization for personnel…

  12. 14 CFR 13.21 - Military personnel.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Military personnel. 13.21 Section 13.21... INVESTIGATIVE AND ENFORCEMENT PROCEDURES Legal Enforcement Actions § 13.21 Military personnel. If a report made... civilian employee of the Department of Defense who is subject to the Uniform Code of Military Justice (10 U...

  13. 7 CFR 1400.213 - Military personnel.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Military personnel. 1400.213 Section 1400.213... AND SUBSEQUENT CROP, PROGRAM, OR FISCAL YEARS Payment Eligibility § 1400.213 Military personnel. If a person is called to active duty in the military before a determination is made that the person is...

  14. 49 CFR 1503.407 - Military personnel.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 9 2011-10-01 2011-10-01 false Military personnel. 1503.407 Section 1503.407... Assessment of Civil Penalties by TSA § 1503.407 Military personnel. If a report made under this part... the Department of Defense who is subject to the Uniform Code of Military Justice (10 U.S.C. chapter 47...

  15. 78 FR 43796 - Indebtedness of Military Personnel

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-22

    ... Department of the Army 32 CFR Part 513 Indebtedness of Military Personnel AGENCY: Department of the Army, DoD. ACTION: Final rule; removal. SUMMARY: This action removes regulations concerning indebtedness of military... CFR Part 112, ``Indebtedness of Military Personnel,'' and DoD Financial Management Review (FMR...

  16. 14 CFR 13.21 - Military personnel.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Military personnel. 13.21 Section 13.21... INVESTIGATIVE AND ENFORCEMENT PROCEDURES Legal Enforcement Actions § 13.21 Military personnel. If a report made... civilian employee of the Department of Defense who is subject to the Uniform Code of Military Justice (10 U...

  17. 33 CFR 154.840 - Personnel training.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Personnel training. 154.840... Personnel training. (a) A person in charge of a transfer operation utilizing a vapor control system must have completed a training program covering the particular system installed at the facility....

  18. 49 CFR 1503.407 - Military personnel.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Assessment of Civil Penalties by TSA § 1503.407 Military personnel. If a report made under this part... 49 Transportation 9 2010-10-01 2010-10-01 false Military personnel. 1503.407 Section 1503.407 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION...

  19. Recruitment and Retention of Assessment Personnel

    ERIC Educational Resources Information Center

    Simpson, Cynthia G.; Lynch, Sharon A.; Spencer, Vicky G.

    2007-01-01

    With a national shortage of special education personnel, including assessment personnel (Caranikas-Walker; Shapley, Cordeau, 2006; Karr, 2005), rural communities face serious challenges in retaining and recruiting highly qualified special education staff due to limited access to university training programs (Hausman & Hausman, 2003; Knapczyk,…

  20. NASP Issues Guidance on Personnel Evaluation

    ERIC Educational Resources Information Center

    Lazarus, Philip J.; Myers, Mary Alice; Skalski, Anastasia Kalamaros

    2012-01-01

    In November 2011, the National Association of School Psychologists (NASP) created the Personnel Assessment Task Force comprising national and state leaders with knowledge of effective personnel evaluation systems. Task force participants included school psychologist supervisors, university professors, NASP leadership, and staff. The primary…