TEMPERATURE ELEVATION GENERATED BY A FOCUSED GAUSSIAN-BEAM OF ULTRASOUND

被引：56
|
作者：
WU, JR
DU, GH
机构：
[1] Department of Physics, University of Vermont, Burlington
来源：
ULTRASOUND IN MEDICINE AND BIOLOGY | 1990年 / 16卷 / 05期
基金：
美国国家科学基金会;
关键词：
Biomedical ultrasound; Focused beams; Hyperthermia; Safety; Tissue absorption;
D O I：
10.1016/0301-5629(90)90171-8
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The steady state temperature elevation generated by a focused Gaussian beam, including the effect of perfusion, has been calculated along the beam axis. The medium is assumed to be a homogeneous absorbing one. The results indicate: (1) The temperature rise is an increasing function of the intensity gain of the focusing transducer, but never seems to exceed twice that at the interface of the transducer and the medium generated by its unfocused counterpart; and (2) The temperature rise at the interface of the transducer and the medium is not affected significantly by focusing. © 1990.
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页码：489 / 498
页数：10
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