Simultaneous coagulation of large volume by creating multiple cavitationclouds in high intensity focused ultrasound treatment

Yuta Inaba, Kengo Takimoto, Shin Yosizawa, Shin Ichiro Umemura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-Intensity focused ultrasound (HIFU) is attracting attention as aminimally invasive therapeutic modality. However, it has a problem of a longtreatment time. To improve its treatment throughput, we developed a method ofcoagulating a large region at one time utilizing multiple clouds of cavitation.It is known that acoustic cavitation generated in the focal region of HIFUenhances tissue heating. In the experiment in this study, cavitation clouds weregenerated at three positions within a fraction of a second by high-intensityultrasound pulses. The tissue in the vicinity of the cavitation clouds werecoagulated simultaneously with non-spherically focused ultrasound waves at arelatively low intensity, and a high-speed camera was used to observe suchbehavior of cavitation clouds and optimize the sequence for its coagulationperformance. The result suggests that the HIFU treatment time is significantlyshortened by employing the proposed method.

Original languageEnglish
Title of host publication2010 IEEE International Ultrasonics Symposium, IUS 2010
Pages2278-2281
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
Duration: 2010 Oct 112010 Oct 14

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

Other

Other2010 IEEE International Ultrasonics Symposium, IUS 2010
Country/TerritoryUnited States
CitySan Diego, CA
Period10/10/1110/10/14

Keywords

  • HIFU
  • cavitation
  • phased array

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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