title: Noninvasive thermometer for HIFU and its scaling.
abstract: Acoustic-inversion method for a noninvasive temperature measurement in tissue is presented. A set of B-scan operating in M-mode was used as a signal-equipment. The echoes reflected from an assigned surface in tissue were acquired before and after heating, and the corresponding spectra were then obtained by FFT. In order to conduct the acoustic-inversion method, a theoretical formula given by authors in another paper was invoked. The optimization algorithm was implemented to fit the spectra to the measured data and calculate changes in temperature.
authors.affiliation: National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, PR China. qianzw@mail.ioa.ac.cn <qianzw@mail.ioa.ac.cn>
authors.forename: Zu Wen
authors.initials: ZW
authors.lastname: Qian
authors.forename: Liulin
authors.initials: L
authors.lastname: Xiong
authors.forename: Jinshen
authors.initials: J
authors.lastname: Yu
authors.forename: Daoyuan
authors.initials: D
authors.lastname: Shao
authors.forename: Houqing
authors.initials: H
authors.lastname: Zhu
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Wu
mesh_terms: D000818:Animals; D001831:Body Temperature / Q000502:physiology* / Q000528:radiation effects; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D066298:In Vitro Techniques; D018482:Muscle, Skeletal / Q000502:physiology* / Q000528:radiation effects*; D011817:Rabbits; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013552:Swine; D013817:Thermography / Q000295:instrumentation* / Q000379:methods*; D014464:Ultrasonic Therapy / Q000295:instrumentation* / Q000379:methods*