21101 強力集束超音波による体組織焼灼過程のリアルタイムイメージング(バイオエンジニアリング(1),OS3 バイオエンジニアリング)

概要

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It is necessary to accurately understand the condition of the treated region from outside of the body in real-time in HIFU (High Intensity Focused Ultrasound) therapy. In this study, to monitor the condition of the treated region with ultrasound diagnostic system, the ultrasound diagnostic images were compared with the movie taken by a digital video camera during and after ultrasound irradiation. In the ultrasound diagnostic images, high-bright region got shrunk after the irradiation stopped, but not in the video images. This probably means cavitation bubbles disappeared after the irradiation. This result indicates the necessity for the consideration of cavitaion effect on ultrasound diagnostic images in monitoring HIFU therapy.
2006-03-09