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Journal of Medical Systems
Published in: Journal of Medical Systems 5/2011

01-10-2011 | Original Paper

A Study of Heating Duration and Scanning Path in Focused Ultrasound Surgery

Authors: Dehui Li, Guofeng Shen, Hui Luo, Jinfeng Bai, Yazhu Chen

Published in: Journal of Medical Systems | Issue 5/2011

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Abstract

A conventional method of avoiding normal tissue overheating during focused ultrasound surgery (FUS) is to apply equal heating duration for each sonication in between cooling intervals. However, this method is time-consuming and expensive. A novel method with unequal heating duration in different scanning paths without cooling intervals was investigated in this paper. This method was compared with the conventional method through the ablation of a 10 × 10 cm2 target. The simulation results indicated that the new method was able to reduce treatment time by more than 50%, with higher than 95% coverage index, and more uniform thermal dose distribution. The method was further verified through the ablation of a circular lesion. Ex vivo experiments were also performed to confirm the simulation results. Both simulation and experimental results have proven that the new method can increase heating efficiency, and are a promising new approach in FUS.
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Metadata
Title
A Study of Heating Duration and Scanning Path in Focused Ultrasound Surgery
Authors
Dehui Li
Guofeng Shen
Hui Luo
Jinfeng Bai
Yazhu Chen
Publication date
01-10-2011
Publisher
Springer US
Published in
Journal of Medical Systems / Issue 5/2011
Print ISSN: 0148-5598
Electronic ISSN: 1573-689X
DOI
https://doi.org/10.1007/s10916-010-9463-6

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