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Ultrasound thermometry in hyperthermia

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4 Author(s)
Ueno, S. ; Matsushita Res. Inst. Tokyo Inc., Kawasaki, Japan ; Hashimoto, M. ; Fukukita, H. ; Yano, T.

A hyperthermia thermometry system using an ultrasound nonlinear effect caused by superposed pulses was developed. A feasibility study was made to obtain temperature mapping of tissue phantoms and of anesthetized pigs heated by an ultrasound applicator. The thermometry system consists of a mechanical sector scanner and a mainframe with a color monitor. The distribution of the temperature rise is calculated within one minute, and displayed on the monitor together with an ultrasound B-mode image. Experimental results show that a reasonable temperature rise mapping was obtained in both objects, agreeing to within 2°C with the data obtained by thermocouples located in the phantom

Published in:

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Date of Conference:

4-7 Dec 1990