Title :
A noninvasive focal field intensity estimation method using finite amplitude effects in ultrasound hyperthermia
Author :
Özyar, M. Serhat ; Köymen, Hayrettin
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
Abstract :
A method for noninvasive in situ estimation of intensity in ultrasound hyperthermia is presented. The method employs the nonlinear theory of sound propagation in a focused ultrasound hyperthermia system in order to determine the focal field intensity, where the sound intensity levels are relatively high in the focal volume
Keywords :
biomedical ultrasonics; biothermics; radiation therapy; US intensity; finite amplitude effects; noninvasive focal field intensity estimation method; noninvasive in situ estimation; sound propagation nonlinear theory; ultrasound hyperthermia; Acoustic beams; Acoustic propagation; Acoustic scattering; Amplitude estimation; Frequency; Humans; Hyperthermia; Thermal conductivity; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234043
