The transverse diameter of abdominal aorta by computerized tomography is studied. The purpose is to establish the frequent standard diameters and then diagnose early pathologies, mainly aneurisms. (Atomindex citation 16:060842)
National Technical Information Service (NTIS)
[78.08] Application of Computerized Tomography to the Study of the Interaction of the Ionospheres of Io and ... The technique of computerized tomography was ...
NASA Website
This report discusses progress in computerized tomography scanners; computerized tomography reconstruction technologies; and applications of computerized tomography.
Energy Citations Database
A patient with a previous splenectomy presented with acute gastrointestinal bleeding. He was found to have a benign gastric ulcer, esophagogastric varices, and a mass indenting the gastric fundus. Abdominal computerized tomography and technetium liver-spleen scanning established the diagnosis of an accessory spleen as cause for the ...
Giant colonic diverticula are an uncommon manifestation of colonic diverticular disease. This report documents another case of this rare entity. The clinical presentation is variable, but abdominal pain and the presence of an abdominal mass are common. Their etiology is uncertain, but they are thought to originate from pulsion diverticula. ...
PubMed
Intra-abdominal abscess remains a challenging clinical problem. Patients are frequently critically ill with major organ system failure. An aggressive diagnostic and therapeutic approach is mandated. Application of newer imaging techniques should allow a better than 90 per cent accuracy of abscess localization. Clearer definition of the abscess cavity by ultrasound or ...
... Title : COMPUTERIZED TOMOGRAPHY WITH RECORDING OF TWO-DIMENSIONAL PROJECTIONS. Corporate Author : ...
DTIC Science & Technology
A hemophiliac with a self-inflicted abdominal stab wound was evaluated with computerized tomography, ultrasound, and technetium-99m labeled red blood cell (Tc-99m RBC) imaging. A large intra-abdominal hematoma was best defined by CT and ultrasound; however, continued bleeding, indicating the need for emergency ...
Loss of SAT and an increase in VAT are common with HIV lipodystrophy. Excess abdominal VAT is a known risk factor for cardiovascular disease. Computerized axial tomography (CT) can be used to measure SAT and VAT areas in cross-sectional images of the abdomen. The ideal site(s) and number of abdomina...
Technology Transfer Automated Retrieval System (TEKTRAN)
... Descriptors : *HELICOPTER ROTORS, *COMPOSITE MATERIALS, *TOMOGRAPHY, *COMPUTERIZED TOMOGRAPHY, PANELS, GRAPHITE ...
... PARTS, LOSSES, TOMOGRAPHY, AEROSPACE INDUSTRY, UTILIZATION, RADIOGRAPHY, COMPUTERIZED TOMOGRAPHY, TEST AND ...
... COSTS, INSPECTION, COMPUTER APPLICATIONS, TOMOGRAPHY, INSTRUCTIONS, COMPUTERIZED TOMOGRAPHY, REQUIREMENTS. ...
Eighty-five consecutive patients admitted for trauma evaluation and fulfilling criteria suggesting the possibility of intra-abdominal injury underwent both immediate computerized axial tomography of the abdomen and a nuclear medicine evaluation, including a liver-spleen scan with or without a renal scan, in order to delineate their ...
PubMed Central
... Accession Number : ADA421802. Title : Computerized Tomography of Projection Ultrasound. Descriptive Note : Annual summary rept. ...
... Accession Number : ADA411430. Title : Computerized Tomography of Projection Ultrasound. Descriptive Note : Annual summary rept. ...
... Accession Number : ADD339688. Title : Computerized Cone Beam Tomography of Ceramic Matrix Composites,. Corporate Author : ...
... Accession Number : ADA214401. Title : An Application of Computerized Axial Tomography (CAT) Technology to Mass Raid Tracking. ...
The analysis of the case histories of 27 patients suffering from abdominal tumors - mainly localized within the retroperitoneal space - and observed during the last 4 years shows that sonography is the method of choice if an abdominal tumor is suspected. In only a few cases however a definite diagnosis was possible. In most cases additional roentgenologic ...
... CASTING, *AERONAUTICAL ENGINEERING, *BOMBER AIRCRAFT, *COMPUTERIZED TOMOGRAPHY, AERODYNAMIC CONFIGURATIONS ...
... Descriptors : *NONDESTRUCTIVE TESTING, *COMPUTERIZED TOMOGRAPHY, ELECTRONICS, SPATIAL DISTRIBUTION, LOGISTICS ...
... Descriptors : *COMPUTERIZED TOMOGRAPHY, *COMPTON SCATTERING, *GAMMA SPECTROMETERS, NONDESTRUCTIVE TESTING ...
... Descriptors : *THERMAL BATTERIES, *COMPUTERIZED TOMOGRAPHY, MECHANICAL PROPERTIES, AIRCRAFT, PENETRATION ...
... Descriptors : *INSPECTION, *PRINTED CIRCUIT BOARDS, *COMPUTERIZED TOMOGRAPHY, SENSITIVITY, HIGH RESOLUTION ...
... COMPUTED TOMOGRAPHY (COMPUTERIZED AXIAL TOMOGRAPHY OR CAT SCANNING) PRODUCES IMAGES, OR 'SLICES,' THROUGH AN ...
Following unilateral iliac artery injection of radiopaque Microfil in cadavers, coronal sections of the anterior abdominal wall at 1-cm intervals were obtained employing computerized axial tomography of the intact specimen as well as xerography of frozen slices. Because they avoid the distortion and disruption of the vasculature ...
A rare variant of right hepatic lobe hypoplasia associated with high gallbladder position in the right upper abdomen is described. Pain is frequent and may be due to cholelithiasis. It is important to recognize this variant because an associated hypertrophic left hepatic lobe can clinically masquerade as an abdominal mass. Radionuclide studies and ...
Desmoid tumor originating from the small intestine is extremely rare. We report a 50-year-old man who presented with the sudden onset of severe abdominal pain. Computerized tomography (CT) demonstrated a huge homogeneous tumor in the lower abdomen that appeared to be in continuity with the distal ileum. The mass adherent to the ileum ...
Surgical lesions of the falciform ligament are rare. Clinically, they present most often as a cystic abdominal mass, and less often as an abscess. Two cases of falciform ligament lesions are reported. The literature, histology, anatomy, clinical manifestations, and surgical management are detailed. Computerized axial tomography (CAT ...
Extramedullary hematopoiesis is an infrequent cause of thoracic masses. Extrathoracic locations are even less common. The authors have studied two patients, one with suspected pelvic neoplasm, with technetium-99m sulfur colloid marrow image and transmission computerized tomography. This noninvasive evaluation established the diagnosis of pelvic ...
A case of liposarcoma of the perineum and scrotum, which presented as a huge haematoma and was left in place for three years prior to excision, is presented. The patient was treated by wide excision of the tumour, orchiopexy to the inguinal region and radiotherapy. To date, 30 months following surgery, the patient is completely asymptomatic and no tumour recurrence is evident either on physical ...
... also called computed tomography, computerized tomography, or computerized axial tomography. Neurological exam : A series of questions and ... the tumor cells are from normal cells. How fast the tumor cells are growing. The tumor biology ...
MedlinePLUS
Seventy-five patients with abdominal pain in the right upper quadrant who were subsequently confirmed operatively and histologically to have acute or chronic cholecystitis underwent radionuclide imaging of the biliary tree, ultrasonography, and/or computerized tomography before operation. fifty-eight of the patients had acute ...
Sixty-eight indium-111-labeled leukocyte imaging studies were performed in 53 patients with suspected abdominal abscesses. Twenty-nine studies gave abnormal results. Nine wound infections were demonstrated, and 14 abscesses were correctly identified. Four studied demonstrated colonic accumulation, one of which remains unexplained, and two accessory spleens were identified. ...
Systemic lupus erythematosus can be complicated by the antiphospholipid syndrome (APS). The clinical manifestations of this syndrome most often documented thus far are recurrent deep venous thrombosis, recurrent spontaneous abortions, and cerebral vascular accidents. Abdominal ischemic events have received relatively little attention in prior reports. We report on a lupus ...
... Title : A Comparison of the Usability of Three Versions of a Computerized Medical Diagnostic Assistance Program for Abdominal Pain. ...
This book presents papers on computed tomography. Topics covered include: computed tomography in clinical radiotherapy; technical aspects of the utilization of CT in radiotherapy planning; and computed tomography in clinical dosimetry.
A study on the adequacy of computerized tomography (CT) scanners is reported. Computerized tomography is defined as a diagnostic technique permitting physicians to observe cross-sectional pictures of internal body structures. The CT scanning machine works...
... Accession Number : ADD340600. Title : Characterization of Defects in Ceramics by Computerized Tomography with High Spatial Resolution,. ...
A method of computerized tridimensional image reconstruction from their projection, especially in the computerized transverse axial tomography is suggested. First, the different techniques actually developped and presented in the literature are analyzed. ...
The research funded by this grant is for the investigation of computerized ionospheric tomography as a method for characterization of the ionosphere. This research looks at specific degradation factors and develops compensation techniques and new CIT algo...
In this study, the Massachusetts Department of Public Health attempts to establish criteria for allocation of the technologically sophisticated and expensive computerized tomography (CT) scanners in use in Massachusetts. Judging from evidence collected in...
Guidelines for the development of computerized transaxial tomography (CTT) services in northwestern Pennsylvania are presented. It is noted that rational development of these services is essential because CTT is expansive, with equipment ranging from $170...
... reports on a positron computerized tomography camera syste:. ... of x-ray computerized tomography (XCT) is ... Nuclides emitting positrons are used as ...
Segmental arterial mediolysis (SAM) is an uncommon self-limited disorder that can cause abdominal catastrophes through massive bleeding or bowel infarction. The former arise from arterial aneurysms, and the latter from arterial stenosis or occlusions. Although this is an acute self-limiting disease, the catastrophic consequence, originating from ...
... Descriptors : *COMPOSITE MATERIALS, *COMPUTERIZED TOMOGRAPHY, DENSITY, MEASUREMENT, MANUFACTURING, X RAYS, CERAMIC ...
... Descriptors : *COMPUTERIZED SIMULATION, *NONDESTRUCTIVE TESTING, *INSPECTION, *X RAY SCATTERING, *TOMOGRAPHY, LIGHT ...
... Descriptors : *X RAY SPECTRA, *STANDARDS, *COMPUTERIZED TOMOGRAPHY, TEST AND EVALUATION, DENSITY, MEASUREMENT ...
... FLUIDS, OPTICAL SCANNING, PHOTODIODES, NEAR INFRARED RADIATION, COMPUTERIZED TOMOGRAPHY, MAMMARY GLANDS ...
... Abstract : During the late 1970's, computerized axial tomography, or CAT scanning, became widely used as a non-invasive medical diagnostic ...
... Descriptors : *COMPUTERIZED TOMOGRAPHY, *DAMAGE CONTROL, *BONES, GLUTAMIC ACID, X RAYS, PARTICLES, LIGANDS ...
... Descriptors : *OPTICAL IMAGES, *OPTICAL DETECTORS, *COMPUTERIZED TOMOGRAPHY, POLARIZATION, PASSIVE SYSTEMS ...
Tender lumps in the inguinal region are often explored emergently to treat suspected hernial strangulation. We discuss the case of an adult male who presented acutely with a tender inguinal swelling and raised inflammatory markers and was therefore deemed as requiring surgical exploration. However preoperative abdominal computerized ...
A 43-year-old man presented with long-standing left flank pain. A plain abdominal radiograph and intravenous urography (IVU) revealed a giant ureteral stone measuring 6.2 � 2.2 cm causing ureteral obstruction. A non-enhanced computerized tomography (CT) scan showed a significantly atrophied right kidney and left hydronephroureterosis ...
Experience with 16 sequential patients with Stage IA/IIA supradiaphragmatic Hodgkin's disease who had no evidence of intra-abdominal disease using high-dose gallium and computerized tomography scanning is reported. Subsequent staging laparotomy also was negative in all these patients and did not alter management decisions. It is ...
Experience with 16 sequential patients with Stage IA/IIA supradiaphragmatic Hodgkin's disease who had no evidence of intra-abdominal disease using high-dose gallium and computerized tomography scanning is reported. Subsequent staging laparotomy also was negative in all these patients and did not alter management decisions. It ...
Trauma is the leading cause of nonobstetric morbidity and mortality in pregnancy. Care of the pregnant trauma patient is well documented in the medical literature; however, little has been written about the management of trauma patients with ectopic or cornual pregnancy. Herein, we report the previously undocumented occurrence of a traumatic rupture of a cornual ectopic pregnancy. The use of ...
... tomography (CT) or sometimes ultrasound scanning or magnetic resonance imaging (MRI). These tests can help distinguish an ...
Colorectal foreign bodies are infrequently encountered, and are mostly associated with increased incidence of homosexuality and anal auto-erotism. The diagnosis may be confirmed by plain abdominal radiographs and rectal examination, but abdominal computerized tomography can be decisive in the further management. ...
Thirty-nine patients with acute pancreatitis have been assessed using a prognostic factor grading system, abdominal ultrasound, and autologous leukocyte imaging. Both prognostic factor grading and leukocyte imaging can accurately assess the severity of the disease early in its course. All patients with a negative indium-labeled leukocyte image recovered without sequelae, ...
... Descriptors : *HEMATOMAS, *HEAD(ANATOMY), MAGNETIC RESONANCE IMAGING, HEMORRHAGE, COMPUTERIZED TOMOGRAPHY ...
... COMPUTER APPLICATIONS, TRAJECTORIES, OPTICAL TRACKING, SKIN(ANATOMY), COMPUTERIZED TOMOGRAPHY, BIOPSY, BONES ...
... Title : Nondestructive Testing of Materials and Components by Computerized Tomography with Fast and Thermal Reactor Neutrons,. ...
... Descriptors : *DIAGNOSTIC EQUIPMENT, *CANCER, *COMPUTERIZED TOMOGRAPHY ... MEDICINE AND MEDICAL RESEARCH. ...
... Descriptors : *COMPUTERIZED TOMOGRAPHY, *IMAGE RECONSTRUCTION, JAPAN ... Categories : MEDICINE AND MEDICAL RESEARCH. ...
... Descriptors : *COMPOSITE MATERIALS, *COMPUTERIZED TOMOGRAPHY, NONDESTRUCTIVE TESTING, X RAYS, INSPECTION, COMPUTER ...
... Title : DIMENSIONAL AND GEOMETRY ANALYSIS OF TURBINE BLADES BY THE USE OF COMPUTERIZED TOMOGRAPHY (CT). ...
... MOLECULES, ACCURACY, LUNG, PILOT STUDIES, COMPUTERIZED TOMOGRAPHY, MAMMOGRAPHY, OVARIAN CANCER, LUNG CANCER. ...
This study evaluated 18 patients with blunt abdominal trauma who suffered isolated mesenteric injuries, diagnosed at exploratory laparotomy. Thirteen had diagnostic peritoneal lavage (PL) as their initial diagnostic study, and five had computed tomography (CT). All patients who had positive PL were explored emergently, undergoing repair of mesenteric ...
This study was intended to delineate the indications for radiotherapy treatment-planning with the help of computerized axial tomography (C.T.) and transverse analog tomography (T.A.T.). Radiotherapy localisation procedures with the conventional method (si...
Three versions of a computerized medical diagnostic assistance program for abdominal pain were tested for ease of use, ease of learning, user satisfaction, and time to complete the Pain Site screen. A higher satisfaction rating was associated with visual ...
... caused by a bacterial infection. Most people have constant abdominal pain and a fever. Computed tomography or ... location of the abscess, but most people have constant discomfort or pain, feel generally sick (malaise), and ...
This study was designed to evaluate the clinical features of abdominal actinomycosis and to assess its therapeutic outcome. We reviewed patients with abdominal actinomycosis in Seoul St. Mary hospital, between January 1994 and January 2010. Twenty-three patients (5 male and 18 female, mean age, 47.8 yr; range, 6-75 yr), with abdominal ...
Results of works devoted to research in the fields of gastro intestine tract are presented. Tomography diagnosis and radiotherapy at these diseases treatment are discussed.
Because of the information it provides, computerized tomography has gained wide acceptance. However, the radiation delivered is considerable, and the gonads cannot be shielded effectively. Transaxial tomography also produces a cross-sectional image. While the image has less resolution, it is obtained at a fraction of the exposure. The ...
... site by a photon on optical ... ten times of the transport mean free ... METHOD, THREE DIMENSIONAL, PHOTONS, TOMOGRAPHY, COMPUTERIZED ...
The techniques of Emission Computerized Tomography have developped dramatically in the past few years, and necessitate a rational analysis of the performances of the systems. Most of these characteristic parameters are common to both Single Photon Countin...
... include Ultrasound Tomography, Positron Emis- ... Photon Emission Computerized Tomography (SPECT) ... measurements and computer simulations ...
Developments in medical imaging in the last ten years are described. Techniques include fine focus x-ray tubes, computerized tomography, emission tomography, and ultrasonography. (ACR)
DOE Information Bridge
Developments in medical imaging in the last ten years are described. Techniques include fine focus x-ray tubes, computerized tomography, emission tomography, and ultrasonography. (ERA citation 05:034177)
DOE R&D Accomplishments Database
OBJECTIVE: The purpose of this study was to evaluate the accuracy of abdominal ultrasonography (US) for screening and grading pediatric splenic injury. SUMMARY BACKGROUND DATA: The use of abdominal US has increased rapidly as a method of evaluating organ damage after blunt abdominal trauma. Despite US's increasing use, little is known ...
Of all types of brain tumors, metastases are the most frequent. The most valuable method of examination today is computerized tomography as it provides ample information and involves no discomfort to the patient. The CT picture of metastases is often quit...
Computerized axial tomography (CAT) standards and criteria are presented. CAT is an innovative radiological technique which permits taking images of the internal structures of the body through computer-assisted X-ray scanning. It represents a major advanc...
The report covers 30 patients of 10 to 74 years of age who had hard spontaneous intracerebral haematomas in the time from 1975 to 1980 and had been operated on after diagnosing by means of computerized tomography. The total mortality rate was 40% and was ...
Economic aspects of computerized tomography (CT) charges are considered in a report of the CT Scan Charge Structure Committee in Denver, Colo. The development of the CT scanner as a diagnostic tool is traced. Applications of CT scanning are detailed, incl...
Computerized tomography is a revolutionary method of x-ray imaging that uses a digital computer to produce cross-sectional images of x-rayed bodies. The contract work reported examined the technical feasibility of inspecting reactor components (especially...
This article reports on a positron computerized tomography camera system using multiwire proportional chambers (MWPC) as detectors. This system is composed of two high-density MWPC gamma-ray detectors, an electronic readout system and a computer for data ...
Guidelines to assist local communities in review and decisionmaking related to computerized tomography (CT) 'head' and 'whole body' scanner needs and placement are presented. Although medical benefits for head scanning are well established, the proper rol...
Estimates of mean organs doses from five typical computerized tomography (CT) examinations were obtained. Measurements were done using Rando-Alderson anthropomorphic phantom and thermoluminescent dosemeters (TLD). Radiation dose distributions within a pha...
The Lawrence Livermore National Laboratory (LLNL) has been developing industrial computerized tomography (CT) scanners over the last five years for specific programmatic needs. These scanners are used for nondestructive inspection and characterization of ...
Minimum criteria and standards for computerized axial tomography (CAT) scanners are reviewed. The need for a CAT scanner depends upon whether or not an institution has an active neurosurgical service, an active neurology service, and an appropriate annual...
A current assessment of national experience and technological developments in computerized transaxial tomography (CTT) is presented with recommendations for institutions considering acquisition of CTT units. CTT is a diagnostic x-ray technique which, thro...
Criteria, standards, and requirements for establishment of computerized tomography services in Indiana are set forth in an interim plan developed by a committee of the Indiana State Board of Health in accordance with Section 1122 of the Social Security Ac...
The computerized Tomography (CT) is a method of nondestructive testing, that furnish quantitative information, that permit the detection and accurate localization of defects, internal dimension measurement, and, measurement and chart of the density distri...
The thesis is aimed at reviewing a therapy plan worked out previously for the treatment of patients with cerebral metastases, and at studying computerized tomography for its potential benefit in the planning and implementation of radiotherapy. 61 patients...
Over the past five years, we have performed research and developed many computerized tomography (CT) systems. Our CT R&D efforts have been concentrated in three main areas: scanners, software tools, and applications. The first two areas are discussed in t...
Methods for the three dimensional reconstruction of /sup 99m/Tc brain scans are described. The diagnostic advantages of computerized tomography in the localization of brain tumors and in measurements of local cerebral blood flow are discussed.
Computerized tomography is considered to be a decisive and the most reliable investigation method for the diagnosis of cerebral tumors. The rate of detection of intracranial blastomas is over 90%. Supratentorial growths are more easy to prove than tumors ...
The use of ionizing radiation for medical purposes is increasing every year. A very popular method recently added to diagnostic x-ray procedures is computerized tomography (CT), a radiological imaging method with high accuracy for the determination of the...
Course control of the radiotherapy of brain tumors by computerized tomography is described as an important diagnostic element using the example of three different groups of patients. In contrast to scintigraphy, encephalography, and serial angiography, co...
Criteria are presented for determining the need for computerized tomography scanners in the State of Tennessee. The criteria are based on an estimate of need as projected from sample demands for certain indexical, diagnostic neurological procedures on whi...
Guidelines are presented to assist physicians, health administrators, trustees, members of planning and review bodies, and the public in planning and reviewing computerized axial tomography (CAT) projects. The document opens with a brief description of th...
In this study it is demonstrated the applicability of the Computerized Tomography technique with x-rays to evaluate the reactivity degree between various drilling fluids and argillaceous sediments (Shales and Sandstones). The research has been conducted i...
Radioscopy and transmission x-ray computerized tomography (TCT) were used to analyze as simulated waste canister. This study was performed to demonstrate the qualitative and quantitative possibilities obtained by TCT scanners over radioscopy and how TCT c...
A methodology for computerized tomography of the mandibular joints was developed and applied in 80 test persons. Imaging of the mandibular joints is possible with a tomographic technique with 5 mm-overlap, full utilisation of the enlargement capacity of t...
The authors present a review of the mathematical principles of computerized tomography. Topics treated include the role of the Radon transform and related transforms, inversion formulas, uniqueness, ill-posedness and stability, practical reconstruction al...
Available computerized axial tomography (CAT) scanning equipment is described, with an eye toward responsibilities of comprehensive health planning (CHP) agencies in approving capital expenditures for such equipment. CAT equipment provides a non-invasive ...
The examination results of 418 patients whose epigastria had been examined both by computerized tomography and sonography over 1 week in the time from beginning January 1978 until and of July 1979 were compared with regard to the imaging of the pancreas, ...
The review of a certificate of need request concerning the proposed purchase of a computerized tomography (CT) scanning device by the Fairfax (Virginia) Hospital Association (FHA) is documented. The review was performed by the staff of the Comprehensive H...
This report describes the parathyroid scan, computerized tomography and histologic findings in a young female hemodialysis patient with severe secondary hyperparathyroidism. These findings included hyperplasia and calcification of all four parathyroid glands. PMID:11676361
We report a case involving the surgical removal of a G�nther Tulip filter with symptomatic caval penetration after an unsuccessful attempt at percutaneous retrieval in a 32-year-old man with recurrent deep vein thrombosis. He presented with acute right flank pain a day after the attempted retrieval of the filter. An abdominal radiograph before surgical removal of the filter ...
Solid pseudopapillary tumor (SPT) of the pancreas is a rare pancreatic tumor mostly seen in young women. We here report a twelve-year-old girl presenting with recurrent attacks of pancreatitis. No history of a systemic disease, trauma, drug usage or infection was present. All other etiologic factors like familial, hypertriglyceridemia, hypercalcemia, cystic fibrosis, medications were excluded. On ...
Peripheral vascular complications following coronary angiography and angioplasty are well established. They consist of arterial bleeding, occlusion, false aneurysm, and a-v fistula. Bleeding and thrombosis are usually evident within the twelve hours after the procedure. A case of acute right lower quadrant abdominal pain five days following thrombolytic therapy and ...
