Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Shahram Vaezy"'
Autor:
Keith A. Wear, Shahram Vaezy
Publikováno v:
IEEE Trans Ultrason Ferroelectr Freq Control
Two scientists from the U.S. Food and Drug Administration comment on limitations of acoustic safety indexes that can arise from spatial averaging effects of hydrophones that are used to measure acoustic output.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4f48809ea1cb74f08b6b0cab1dd3e0
https://europepmc.org/articles/PMC8246140/
https://europepmc.org/articles/PMC8246140/
Autor:
Lawrence A. Crum, Roy W. Martin, Wayne L. Chandler, Matthew Rice, Steve Carter, Udo P. Schmiedl, Peter J. Kaczkowski, Ronald A. Roy, Kirk W. Beach, George W. Keilman, Scott Helton, Pierre D. Mourad, Shahram Vaezy, Shari Taylor, Michael T. Caps
Liver hemorrhage, the major cause of death in hepatic trauma, is notoriously difficult to control. We report on the use of high-intensity focused ultrasound (HIFU) to arrest the bleeding from incisions made in rabbit livers. A HIFU transducer, with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc1720b99795a641574bec8236bd50cd
https://ora.ox.ac.uk/objects/uuid:edaab315-707d-4be7-8f9c-9181b9bc02f8
https://ora.ox.ac.uk/objects/uuid:edaab315-707d-4be7-8f9c-9181b9bc02f8
Autor:
Mark E. Schafer, Mary K. Moore, Shahram Vaezy, Gerald R. Harris, Samuel M. Howard, Samuel M. Nagle, James Gessert, Richard M. Eaton, Guru Sundar
Publikováno v:
Journal of Ultrasound in Medicine. 32:1897-1911
This article examines the challenges associated with making acoustic output measurements at high ultrasound frequencies (>20 MHz) in the context of regulatory considerations contained in the US Food and Drug Administration industry guidance document
Publikováno v:
The Journal of Emergency Medicine. 41:64-73
Background: Hemorrhage from wounds in the extremities is the leading cause of preventable death on the battlefield. To successfully treat these injuries, the exact source of bleeding must be localized. Objective: The purpose of this study was to dete
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 58:1203-1210
The paper describes experimental and numerical studies of the effects of gas pockets on a high-intensity focused ultrasound (HIFU) field. Air bubbles ranging from 0.8 to 2.4 mm in radius were produced in transparent polyacrylamide tissue-mimicking ge
Autor:
Xinliang Zheng, Shahram Vaezy
Publikováno v:
Ultrasound in Medicine & Biology. 36:610-622
Ultrasound B-mode visualization of lesions produced in soft tissues using high-intensity focused ultrasound (HIFU) has been shown to be challenging when there is no cavitation activity and, therefore, no hyperechogenecity in the focal region. We inve
Publikováno v:
Medical Physics. 35:4292-4299
Safety concerns exist for potential thermal damage at tissue-air or tissue-bone interfaces located in the post-focal region during high intensity focused ultrasound (HIFU) treatments. We tested the feasibility of reducing thermal energy deposited at
Publikováno v:
Muscle & Nerve. 37:241-250
The effects of various exposures (intensity, duration) of high- intensity focused ultrasound (HIFU) on sciatic nerve conduction were inves- tigated in vivo in rats. The objective was to identify HIFU exposures that produce biological effects ranging
Publikováno v:
Ultrasound in Medicine & Biology. 33:1251-1258
Our objective was to evaluate high-intensity focused ultrasound (HIFU) for minimizing blood loss during surgery by hemodynamically isolating large portions of solid organs before their resection. A high-power HIFU device (in situ intensity of 9000 W/
Autor:
Carol Cornejo, Vesna Zderic, Riyad Karmy-Jones, Shahram Vaezy, Gregory J. Jurkovich, Roy W. Martin
Publikováno v:
Journal of Trauma: Injury, Infection & Critical Care. 62:1390-1395
Background Operative management of parenchymal lung injury can be complicated by persistent hemorrhage and air leak, which might require resection. Techniques that preserve parenchyma are associated with improved survival. High-intensity focused ultr