MR-monitored focused ultrasound using the acoustic-coupling water bath as an intrinsic high-mode dielectric resonator

2014 ◽  
Vol 27 (6) ◽  
pp. 621-624 ◽  
Author(s):  
A. G. Webb
Keyword(s):  
Dielectric Resonator ◽  
Focused Ultrasound ◽  
Water Bath ◽  
High Mode ◽  
Acoustic Coupling

scholarly journals Novel acoustic coupling bath using magnetite nanoparticles for MR‐guided transcranial focused ultrasound surgery

2019 ◽  
Vol 46 (12) ◽  
pp. 5444-5453 ◽  
Author(s):  
Steven P. Allen ◽  
Tom Steeves ◽  
Austin Fergusson ◽  
Dave Moore ◽  
Richey M Davis ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Focused Ultrasound ◽  
Ultrasound Surgery ◽  
Acoustic Coupling ◽  
Focused Ultrasound Surgery ◽  
Transcranial Focused Ultrasound

Polyacrylamide gel as an acoustic coupling medium for focused ultrasound therapy

2003 ◽  
Vol 29 (9) ◽  
pp. 1351-1358 ◽  
Author(s):  
Adrian F Prokop ◽  
Shahram Vaezy ◽  
Misty L Noble ◽  
Peter J Kaczkowski ◽  
Roy W Martin ◽  
...  
Keyword(s):  
Focused Ultrasound ◽  
Polyacrylamide Gel ◽  
Ultrasound Therapy ◽  
Acoustic Coupling ◽  
Coupling Medium

scholarly journals Nano-emulsions. Comprehensive Report

2021 ◽  
Author(s):  
Steven P Allen ◽  
Austin Fergusson ◽  
Connor Edsall ◽  
Richey M Davis ◽  
Eli Vlaisavljevich ◽  
...  
Keyword(s):  
Focused Ultrasound ◽  
Virginia Tech ◽  
Electromagnetic Properties ◽  
Particle Sizes ◽  
Acoustic Coupling ◽  
Mr Guidance ◽  
Mri Scans ◽  
Cavitation Nuclei ◽  
Nano Emulsion

This report gives comprehensive review of the nano-emulsion project between UVA and Virginia Tech which has been generously supported by the Focused Ultrasound Foundation. The purpose of this project is to develop an acoustic coupling bath that is effectively invisible to MRI scans and also remains acoustically compatible with clinical transcranial FUS procedures. This remains important to the clinical translation of FUS because the commonly used acoustic coupling bath of degassed water persistently degrades the quality of MR guidance imaging. Our project proposes an acoustic coupling bath doped with specially designed iron oxide nanoparticles that 1) have a high ability to decay MRI signals, (as quantified by the r2 relaxivity), 2) have diameters less than 100 nm, and 3) are coated with a hydrophilic coating. We hypothesize that these three innovations will produce a lightly doped water bath with identical mechanical, acoustic, thermal, biocompatibility, and electromagnetic properties as water, but with virtually no observable appearance or effect on guidance MR imaging. Finally, the low particle concentrations, small particle sizes, and specific coating will prevent the particles from stabilizing gas bubbles and seeding cavitation nuclei in the transducer’s pre-focal field.We are pleased to report nearly total success on this project, with an affirmation of all hypotheses stated above.

Visuomotor Transformations Are Modulated by Focused Ultrasound over Frontal Eye Field

2020 ◽  
Author(s):  
Kaleb A. Lowe ◽  
Wolf Zinke ◽  
M. Anthony Phipps ◽  
Josh Cosman ◽  
Micala Maddox ◽  
...  
Keyword(s):  
Focused Ultrasound ◽  
Frontal Eye Field ◽  
Visuomotor Transformations ◽  
Eye Field

260: High Intensity Focused Ultrasound Combined with Endocrine Therapy in Treating High or Intermediate Risk Prostate Cancer

2006 ◽  
Vol 175 (4S) ◽  
pp. 86-86
Author(s):  
Makoto Sumitomo ◽  
Junichi Asakuma ◽  
Yasumasa Hanawa ◽  
Kazuhiko Nagakura ◽  
Masamichi Hayakawa
Keyword(s):  
Prostate Cancer ◽  
Endocrine Therapy ◽  
High Intensity ◽  
Focused Ultrasound ◽  
High Intensity Focused Ultrasound ◽  
Intermediate Risk ◽  
Risk Prostate Cancer
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