Detection of HIFU-induced coagulation by motion-compensated decorrelation of RF echo signals

Shin Ichiro Umemura, Ryo Matsuzawa, Takashi Shishitani, Shin Yoshizawa

研究成果: Conference contribution

抄録

Correlation between the ultrasonic echoes has been used to detect the changes of the tissue during high-intensity focused ultrasound (HIFU) exposure, but it tends be lost when tissue coagulation has progressed. In this study, the loss of correlation itself is utilized to detect the tissue coagulation while compensating the local tissue motion. In the experiment with freshly excised and degassed porcine liver, localized decrease in correlation was observed at and around the HIFU focus. The area of decorrelation between each adjacent two frames, separated about 1 s, agreed well with the actual lesion.

本文言語English
ホスト出版物のタイトル2012 IEEE International Ultrasonics Symposium, IUS 2012
ページ2611-2614
ページ数4
DOI
出版ステータスPublished - 2012 12 1
イベント2012 IEEE International Ultrasonics Symposium, IUS 2012 - Dresden, Germany
継続期間: 2012 10 72012 10 10

出版物シリーズ

名前IEEE International Ultrasonics Symposium, IUS
ISSN(印刷版)1948-5719
ISSN(電子版)1948-5727

Other

Other2012 IEEE International Ultrasonics Symposium, IUS 2012
国/地域Germany
CityDresden
Period12/10/712/10/10

ASJC Scopus subject areas

  • 音響学および超音波学

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