Gel phantom containing controlled air to test Triggered HIFU exposure sequence

Kengo Takimoto, Tatsuya Moriyama, Ryo Takagi, Shin Yoshizawa, Shin Ichiro Umemura

研究成果: Conference contribution

抄録

An optically transparent phantom containing a controlled content of air was developed for dosimetry studies of Triggered HIFU (High Intensity Focused Ultrasound) exposure, in which a high intensity short pulse (Triggering Pulse) is used in order to trigger cavitation and enhance the heating effect of an immediately subsequent continuous wave (CW) exposure CW (Heating Waves) with intensity and duration typical of conventional HIFU treatment. The air content was controlled by the time and pressure of degassing during gel formation. We measured the temperature change in the gel with a film thermocouple at the HIFU focus. The temperature rise induced by a 100 μs Triggering Pulse at 10 kW/cm2 of followed by a 10 s CW exposure at 0.2 kW/cm2 was higher than the Heating Waves alone, by up to six to ten times.

本文言語English
ホスト出版物のタイトル10th International Symposium on Therapeutic Ultrasound, ISTU 2010
ページ109-113
ページ数5
DOI
出版ステータスPublished - 2011 10 13
イベント10th International Symposium on Therapeutic Ultrasound, ISTU 2010 - Tokyo, Japan
継続期間: 2010 6 92010 6 12

出版物シリーズ

名前AIP Conference Proceedings
1359
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other10th International Symposium on Therapeutic Ultrasound, ISTU 2010
国/地域Japan
CityTokyo
Period10/6/910/6/12

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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