Title :
Hyperthermia by low-frequency synthesized ultrasound
Author :
Shiina, Tsuyoshi ; Saito, Masao
Author_Institution :
Fac. of Technol., Tokyo Univ. of Agric, & Technol., Japan
Abstract :
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.<>
Keywords :
biomedical ultrasonics; biothermics; radiation therapy; LF synthesized US; bones; gas; heat generation; medical therapeutic technique; temperature distribution; ultrasonic hyperthermia;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95211
