Results 261 to 270 of about 26,966 (277)

Extracorporeal Liver Ablation Using Sonography-Guided High-Intensity Focused Ultrasound

Investigative Radiology, 1992
High-intensity focused ultrasound (HIFU) is the only radiation beam that can remotely destroy deep-seated tissue targets without causing damage to the intervening tissues. This study evaluates the ability of sonography-guided HIFU to extracorporeally induce liver ablation in a rabbit model.Under sonographic guidance, the HIFU beam was transcutaneously ...
R, Yang, N T, Sanghvi, F J, Rescorla, C A, Galliani, F J, Fry, S L, Griffith, J L, Grosfeld   +6 more
openaire   +2 more sources

Extracorporeal Ablation of Liver Tissue by High-Intensity Focused Ultrasound

Oncology, 1993
High-intensity focused ultrasound (HIFU) may produce a well-delineated lesion of coagulation necrosis in deep organs, by means of an extracorporeal transducer. Applications of this method to the liver in animal models have been studied for many years. The effects of HIFU on the normal liver parenchyma and on hepatic tumors are reviewed.
A, Sibille, F, Prat, J Y, Chapelon, F, Abou el Fadil, L, Henry, Y, Theillère, T, Ponchon, D, Cathignol   +7 more
openaire   +2 more sources

Microbubbles assist goat liver ablation by high intensity focused ultrasound

European Radiology, 2006
High intensity focused ultrasound (HIFU) has been introduced to treat cancers. However, this therapy is a time-consuming procedure; destructing a deeper volume is also difficult as ultrasonic energy attenuates exponentially with increasing depth in tissues. The aim of the present study was to investigate the effects of introducing microbubbles on liver
Tinghe, Yu, Xionglin, Fan, Shuhua, Xiong, Kai, Hu, Zhibiao, Wang   +4 more
openaire   +2 more sources

Effective ablation therapy of adenomyosis with ultrasound‐guided high‐intensity focused ultrasound

International Journal of Gynecology & Obstetrics, 2013
AbstractObjectiveTo evaluate the effects of ultrasound‐guided high‐intensity focused ultrasound (HIFU) on adenomyosis.MethodsIn a retrospective analysis, data were reviewed from 202 patients with adenomyosis who underwent ultrasound‐guided HIFU between November 2010 and June 2012 at Suining Central Hospital, Sichuan, China.
Xin, Zhang, Kequan, Li, Bin, Xie, Min, He, Jia, He, Lian, Zhang   +5 more
openaire   +2 more sources

Laparoscopic partial kidney ablation using high-intensity focused ultrasound

The Journal of the Acoustical Society of America, 2001
A laparoscopic ultrasound probe was developed for image-guided high-intensity focused ultrasound (HIFU) ablation of renal tissue. The probe expands the application of a commercially available HIFU system (SonablateTM) to laparascopic operations. It consists of a 4-MHz focused rectangular HIFU piezoceramic transducer (30×10 mm, FL=30 mm) confocally ...
Jahangir Tavakkoli, Victor V. Rao, Ralf Seip, Narendra T. Sanghvi, Eric Barret, Arieh L. Shalhav   +5 more
openaire   +1 more source

High Intensity Focused Ultrasound Renal Tissue Ablation: A Laparoscopic Porcine Model

Journal of Urology, 2009
High intensity focused ultrasound for renal lesions is still experimental. In a porcine model we evaluated the safety and efficacy of a newly designed laparoscopic high intensity focused ultrasound probe and software that allows real-time ultrasound guidance during renal tissue ablation.A Sonatherm 600 high intensity focused ultrasound system with a ...
Marcelo A, Orvieto, Kevin C, Zorn, Mark B, Lyon, Stephen R, Tolhurst, David E, Rapp, Ralf, Seip, Narendra, Sanghvi, Arieh, Shalhav   +7 more
openaire   +2 more sources

In vitro ablation of cardiac valves using high-intensity focused ultrasound

Ultrasound in Medicine & Biology, 2005
The purpose of this study was to evaluate the possibility of using high-intensity focused ultrasound (US), or HIFU, to create lesions in cardiac valves in vitro. Calf mitral valves and aortic valves were examined. Focused US energy was applied with an operating frequency of 4.67 MHz at a nominal acoustic power of 58 W for 0.2, 0.3 and 0.4 s at 4-s ...
Ryo, Otsuka, Kana, Fujikura, Kumiko, Hirata, Todd, Pulerwitz, Yukiko, Oe, Takeki, Suzuki, Robert, Sciacca, Charles, Marboe, Jie, Wang, Daniel, Burkhoff, Robert, Muratore, Frederic L, Lizzi, Shunichi, Homma   +12 more
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Extracorporeally induced ablation of renal tissue by high‐intensity focused ultrasound

BJU International, 2006
Authors from Germany describe the use of percutaneously applied high‐intensity focused ultrasound for non‐invasive tissue ablation. They found that the lessons they learned from the use of this technology in animals could be transferred to its use in humans, both of which are described.
Axel, Häcker, Maurice S, Michel, Ernst, Marlinghaus, Kai U, Köhrmann, Peter, Alken   +4 more
openaire   +2 more sources

Generation of uniform lesions in high intensity focused ultrasound ablation

Ultrasonics, 2013
High intensity focused ultrasound (HIFU) is emerging as an effective oncology treatment modality according to the clinical experience in the last decade. The temperature at the focus can reach over 65°C within seconds, denaturing cellular proteins and resulting in coagulative necrosis.
openaire   +2 more sources

Non-Invasive Transcranial Brain Ablation with High-Intensity Focused Ultrasound

2014
The idea to ablate brain tissue with high-intensity focused ultrasound (HIFU) in a highly precise and localized manner is relatively old. For HIFU tissue ablation, ultrasound (US) waves are concentrated to a focal point. Due to US absorption, the focal area will be heated and consequently thermally destroyed.
openaire   +2 more sources