Results 351 to 360 of about 125,745 (387)

Endogenous Catalytic Generation of O2 Bubbles for In Situ Ultrasound-Guided High Intensity Focused Ultrasound Ablation.

ACS Nano, 2017
High intensity focused ultrasound (HIFU) surgery generally suffers from poor precision and low efficiency in clinical application, especially for cancer therapy.
Tianzhi Liu, N. Zhang, Zhigang Wang, Meiying Wu, Yu Chen, Ming Ma, Hangrong Chen, Jianlin Shi   +7 more
semanticscholar   +1 more source

Multiphysics Modeling of Liver Tumor Ablation by High Intensity Focused Ultrasound

Communications in Computational Physics, 2015
AbstractHigh intensity focused ultrasound is a rapidly developing technology for the ablation of tumors. Liver cancer is one of the most common malignancies worldwide. Since liver has a large number of blood vessels, blood flow cooling can reduce the necrosed volume and may cause regeneration of the tumor to occur.
Solovchuk, Maxim, Sheu, Tony W.H., Thiriet, Marc   +2 more
openaire   +3 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.
Bin Xie, Jia He, Lian Zhang, Min He, Xin Zhang, Kequan Li   +5 more
openaire   +3 more sources

Comparative Study of Pulsed Versus Continuous High‐Intensity Focused Ultrasound Ablation Using In Vitro and In Vivo Models

Journal of ultrasound in medicine, 2020
To compare the efficacy of pulsed high‐intensity focused ultrasound (PHIFU) versus continuous high‐intensity focused ultrasound (CHIFU) ablation at identical doses.
Yanhao Wang, Qi Wang, Yong Luo, Lu Jiang, Zihuan Zeng, Lidan Gan, Jianli Chen, Hongfei Han, J. Zou   +8 more
semanticscholar   +1 more source

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   +3 more sources

High Intensity Focused Ultrasound Ablation of the Vas Deferens in a Canine Model

Journal of Urology, 2002
High intensity focused ultrasound is an ablative technology capable of producing thermal coagulative necrosis of sub-surface structures without injuring intervening tissues. We assessed the feasibility of using high intensity focused ultrasound to produce occlusion of the canine vas deferens.A high intensity focused ultrasound transducer was ...
Louis R. Kavoussi, William W. Roberts, Thomas W. Jarrett, Theresa L. Nicol, E. James Wright, Nathaniel M. Fried, Stephen B. Solomon, David Y. Chan   +7 more
openaire   +3 more sources

Multiple High-Intensity Focused Ultrasound Probes for Kidney-Tissue Ablation

Journal of Endourology, 2005
To investigate kidney-tissue ablation by high-intensity focused ultrasound (HIFU) using multiple and single probes.Ultrasound beams (1.75 MHz) produced by a piezoceramic element (focal distance 80 mm) were focused at the center of renal parenchyma.
Häcker A, Chauhan S, Peters K, Hildenbrand R, Marlinghaus E, Alken P, Michel MS   +6 more
openaire   +4 more sources

Generating Uniform Lesions in High Intensity Focused Ultrasound Ablation

Proceedings of Meetings on Acoustics, 2012
High intensity focused ultrasound (HIFU) is emerging as an effective oncology treatment modality. Because of thermal diffusion from nearby spots, the lesion size will gradually become larger as HIFU progresses. However, uniform lesions with the least energy exposure are preferred by the physician in tumor ablation.
openaire   +2 more sources

Assessment of Gold Nanoparticle-Mediated-Enhanced Hyperthermia Using MR-Guided High-Intensity Focused Ultrasound Ablation Procedure.

Nano letters (Print), 2017
High-intensity focused ultrasound (HIFU) has gained increasing popularity as a noninvasive therapeutic procedure to treat solid tumors. However, collateral damage due to the use of high acoustic powers during HIFU procedures remains a challenge.
Surendra Balaji Devarakonda, M. Myers, Mathew Lanier, C. Dumoulin, R. Banerjee   +4 more
semanticscholar   +1 more source

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 ...
Robert Muratore, Todd Pulerwitz, Kana Fujikura, Shunichi Homma, Takeki Suzuki, Kumiko Hirata, Ryo Otsuka, Frederic L. Lizzi, Daniel Burkhoff, Charles Marboe, Jie Wang, Robert R. Sciacca, Yukiko Oe   +12 more
openaire   +3 more sources