Hyperthermia by low-frequency synthesized ultrasound

T Shiina, M Saito - … of the Annual International Conference of …, 1988 - ieeexplore.ieee.org
T Shiina, M Saito
Proceedings of the Annual International Conference of the IEEE …, 1988ieeexplore.ieee.org
In ultrasonic hyperthermia, hot spots are usually generated by focusing the ultrasonic
beams. However, it is difficult to heat regions other than gas and bones owing to the
attenuation and scattering of the ultrasonic beams. The authors propose an ultrasonic
heating method in which low-frequency ultrasound is used to heat the depths of the body,
and heat generation is localized by synthesizing an acoustic field from several incident
waves. The heat generation and temperature distribution are analyzed using models with …
In ultrasonic hyperthermia, hot spots are usually generated by focusing the ultrasonic beams. However, it is difficult to heat regions other than gas and bones owing to the attenuation and scattering of the ultrasonic beams. The authors propose an ultrasonic heating method in which low-frequency ultrasound is used to heat the depths of the body, and heat generation is localized by synthesizing an acoustic field from several incident waves. The heat generation and temperature distribution are analyzed using models with properties similar to tissue.< >
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