Real-time imaging of the process of stone crushing by ultrasound

Akira Ito, Shin Yoshizawa, Yukio Kaneko, Haruki Kume, Tadaichi Kitamura, Yoichiro Matsumoto

研究成果: Conference contribution

抄録

A new method of lithotripsy combining high and low frequency ultrasound has been investigated. This method controls generation of cavitation only on the stone surface and utilizes collapse pressure of the bubbles. In order to apply this method for clinical practice, it is important to monitor the process of stone crushing and behavior of cavitation from outside the body. In this study, ultrasound imaging was coupled with a therapeutic ultrasound system for real-time monitoring and targeting of stones. Stone crushing tests have been conducted in vitro and in vivo experiments. In vitro experiment, crushing process of a model stone in a polyacrylamide gel was observed with both ultrasound imaging and a digital video camera. It was observed with ultrasound imaging that the stone was crushed with ultrasound. In vivo experiment, a stone crushing experiment has been conducted in a pig bladder. And a mark of crushing was found on the surface of the stone taken out from the bladder after the irradiation, as well as in vitro experiment. The process of stone crushing in a pig bladder could be monitored with bi-plane ultrasound imaging from outside the body.

本文言語English
ホスト出版物のタイトル6th International Symposium on Therapeutic Ultrasound
ページ342-348
ページ数7
DOI
出版ステータスPublished - 2007
外部発表はい
イベント6TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND - Oxford, United Kingdom
継続期間: 2007 8 302007 9 2

出版物シリーズ

名前AIP Conference Proceedings
911
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other6TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND
国/地域United Kingdom
CityOxford
Period07/8/3007/9/2

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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