Behavior of Propagation and Heating Due to Absorption of Ultrasound in Medium
Behavior of Propagation and Heating Due to Absorption of Ultrasound in Medium
复制标题
介质中超声波吸收引起的传播和加热行为
DOI：
10.1143/jjap.45.4429
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Inoue
中科院分区：
文献类型：
--
作者：
C. Yamaya;H. Inoue
近年来，超声波不仅在诊断设备中，而且在利用超声波在活体中的作用的热疗中已经得到实际应用。由于软组织介质中的超声吸收引起的温升的分析是用于澄清超声波在生物组织中的作用和估计介质常数的重要分析对象。利用时域有限差分法（FDTD）进行了三维模拟，该方法采用了基于声学基本方程（ABEs）和Westerpyruvonequation的吸收衰减方程。证实了ABEs与Westerpyruvate方程的一致性。将甘油作为超声吸收介质的温度测量结果与FDTD模拟结果进行了比较。FDTD模拟得到的温度分布与实验结果基本一致。
Recently, ultrasound waves have been put to practical use not only in diagnostic equipment but also in thermotherapy that uses the effect of ultrasound waves in a living body. The analysis of temperature rise due to the absorption of ultrasound in a soft tissue medium is an important analyzing object for the clarification of the effect of ultrasound waves in biological tissues and the estimation of medium constants. Three-dimensional simulations by the finite-difference time-domain (FDTD) method which used the equations that considers the absorption attenuation based on acoustic basic equations (ABEs) and the Westervelt equation have been performed. The consistency between the ABEs and the Westervelt equation is confirmed. The results of temperature measurement that uses glycerin as the absorbing medium of ultrasound are compared with those of FDTD simulation. The temperature distribution obtained by FDTD simulation almost corresponds to that obtained by experiment.
使用超声波对组织温升进行数值分析
DOI：
--
发表时间：
2006
期刊：
Jpn. J. Apl. Phys. 45, 5B
影响因子：
--
作者：
Y.Saito;T.Tsuchiya;N.Endoh
通讯作者：
N.Endoh