Prediction of thermal coagulation from the instantaneous strain distribution induced by high-intensity focused ultrasound

Ryosuke Iwasaki, Ryo Takagi, Kentaro Tomiyasu, Shin Yoshizawa, Shin Ichiro Umemura

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The targeting of the ultrasound beam and the prediction of thermal lesion formation in advance are the requirements for monitoring high-intensity focused ultrasound (HIFU) treatment with safety and reproducibility. To visualize the HIFU focal zone, we utilized an acoustic radiation force impulse (ARFI) imaging-based method. After inducing displacements inside tissues with pulsed HIFU called the push pulse exposure, the distribution of axial displacements started expanding and moving. To acquire RF data immediately after and during the HIFU push pulse exposure to improve prediction accuracy, we attempted methods using extrapolation estimation and applying HIFU noise elimination. The distributions going back in the time domain from the end of push pulse exposure are in good agreement with tissue coagulation at the center. The results suggest that the proposed focal zone visualization employing pulsed HIFU entailing the high-speed ARFI imaging method is useful for the prediction of thermal coagulation in advance.

本文言語English
論文番号07JF23
ジャーナルJapanese journal of applied physics
56
7
DOI
出版ステータスPublished - 2017 7

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

フィンガープリント

「Prediction of thermal coagulation from the instantaneous strain distribution induced by high-intensity focused ultrasound」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル