Effect of shear wave propagation on estimation of heating distribution by high-intensity focused ultrasound using acoustic radiation force imaging

Hiroki Yabata, Shin Ichiro Umemura, Shin Yoshizawa

研究成果: Article査読

5 被引用数 (Scopus)

抄録

In a high-intensity focused ultrasound (HIFU) treatment, to predict a HIFU heat source is important for the safety and efficiency. Acoustic radiation force impulse imaging using a HIFU burst is known as a method for the prediction from the distribution of the tissue displacement in a homogeneous tissue. However, the distribution induced by HIFU radiation force expands as the shear wave propagates. In this study, the effect of the shear wave propagation on the estimation of the heat source distribution was investigated by changing the burst duration and intensity of HIFU. The results showed that a shorter HIFU burst provided the higher accuracy of the prediction, improving the spatial resolution. It is concluded that the estimation method has the potential to estimate in a wide range of HIFU energy and requires one to obtain the distribution of displacements immediately after the start of HIFU burst exposure.

本文言語English
論文番号SKKE19
ジャーナルJapanese journal of applied physics
59
SK
DOI
出版ステータスPublished - 2020 7 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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