... Title : Interaction of Focused Ultrasound with BIological Materials,. ... effects caused by high-frequency ultrasound in different material systems are ...
DTIC Science & Technology
... Abstract : A NOVEL APPROACH TO DYNAMIC FOCUSING OF ULTRASOUND LINEAR ARRAY SCANNERS IS PRESENTED, LEADING TO THE ...
Since the development of biomedical ultrasound imaging from sonar after WWII, there has been a clear divide between ultrasonic imaging and ultrasound therapy. While imaging techniques are designed to cause as little change as possible in the tissues through which ultrasound propagates, ultrasound therapy typically ...
NASA Astrophysics Data System (ADS)
This is an ultrasound showing a ventricular septal defect pattern of the fetal heartbeat. Some ultrasound machines have the ability to focus on ...
MedlinePLUS
Ultrasound contrast agents, in the form of gas-filled microbubbles, are becoming popular in perfusion monitoring; they are employed as molecular imaging agents. Microbubbles are manufactured from biocompatible materials, they can be injected intravenously, and some are approved for clinical use. Microbubbles can be destroyed by ultrasound irradiation. This ...
PubMed Central
This paper provides a historic and contemporary overview of the use of focused ultrasound for treating brain disorders.
E-print Network
for simultaneous monitoring and generation of focused ultrasound therapy using two separate focused ultrasound properties of tissues during focused ultrasound (FUS) therapy. In a previous study, we proposed a similar technique for monitoring of focused ...
Review of the theory of focusing in linear accelerators with comments on the incompatibility of phase stability and first-order focusing in a simple accelerator.
DOE R&D Accomplishments Database
... Title : NONLINEAR ABSORPTION DURING SCANNED FOCUSED ULTRASOUND HYPERTHERMIA. Corporate Author : ...
This is a normal fetal ultrasound showing one pattern of the fetal heartbeat. Some ultrasound machines have the ability to focus on different areas of the heart ...
In ultrasound-guided intensity-modulated radiation therapy (IMRT) of prostate cancer, ultrasound imaging ascertains the anatomical position of patients during x-ray therapy delivery. The ultrasound transducers are made of piezoelectric ceramics. The same crystal is used for both ultrasound production and reception. ...
PubMed
Energy Citations Database
Focused ultrasound is less invasive but is not applicable to deep body or a heterogeneous medium because an ultrasound would travel with reflections, refractions and attenuations. We previously calculated three dimensional transkull focused ultrasound under the assumption of no attenuation. In ...
... (Author). Descriptors : *ION ACCELERATORS, ELECTROMAGNETS, ION BEAMS, FOCUSING, RINGS, USSR, LINEAR ACCELERATORS. ...
Intensity Focused Ultrasound therapy Ultras. Medic. Biol. 30(9) 1239-49 Sanghvi NT, Fry FJ, Bihrle R, Foster1 Transcostal high intensity focused ultrasound: ex vivo adaptive focusing feasibility study J focused ultrasound (HIFU) as a non invasive method ...
Nov 8, 2004 ... Scientific Paper Submitted from Space Focuses on Ultrasound Tests. A scientific manuscript submitted by International Space Station (ISS) ...
NASA Website
... Title : MR-Guided Pulsed High-Intensity Focused Ultrasound Enhancement of Gene Therapy Combined With Androgen Deprivation and ...
Jan 22, 2011 ... dc.description.abstract, This work is motivated by the possible medical application of focused ultrasound in minimally invasive treatment of ...
Jan 22, 2011 ... Title: Interaction of high intensity focused ultrasound with biological structures. Authors: Mal, A. Feng, F. Kabo, M. Wang, J. ...
... Accession Number : ADD806602. Title : Focused Ultrasound to Inspect Locking Keys in Engine Valves. Descriptive Note : Journal article,. ...
... Accession Number : ADD344755. Title : 3D Surface Profiling Using Focused Air-Coupled Ultrasound,. Corporate Author : ...
High intensity focused ultrasound (HIFU) is believed to have great potential for inducing hemostasis in severely bleeding trauma victims. The addition of HIFU-activated biomolecular substances to the blood during treatment could significantly reduce the time required to achieve hemostasis, but such substances must remain inactive everywhere except at the ...
In our previous study, we proposed a ``triggered high-intensity focused ultrasound (HIFU)'' exposure sequence, in which a high-intensity triggering pulse was irradiated just before CW heating waves, to accelerate HIFU treatment. In this study, the second-harmonic was superimposed to the triggering pulse, and the cavitation threshold ...
IN HIGH-INTENSITY FOCUSED ULTRASOUND THERAPY MATHIEU PERNOT, MICKA�L TANTER and MATHIAS FINK Laboratoire, Focused ultrasound, Therapy, Motion tracking. INTRODUCTION High-intensity focused ultrasound (US), or HIFU pulsed high temperature ultrasound ...
A method for using high intensity focused ultrasound (HIFU) to treat neurological structures to achieve a desired therapeutic affect. Depending on the dosage of HIFU applied, it can have a reversible or irreversible effect on neural structures. For exampl...
National Technical Information Service (NTIS)
The 3051 USEPA method (or alternatively, the 3051A) can be considered nowadays as a reference method to extract metals from sediments. However, after microwave heating, the sample must be allowed to cool down, which results in a considerable lengthening of the whole analytical process. Microwave ovens and their maintenance are, in addition, expensive, and its use is relatively dangerous. The use ...
... A FORTRAN PROGRAM WAS DEVELOPED, BASED ON HUYGEN'S PRINCIPLE, IN ORDER TO COMPUTE BEAM PATTERN IN THE NEAR- AND ...
