GAUGING THE LIKELIHOOD OF CAVITATION FROM SHORT-PULSE, LOW-DUTY CYCLE DIAGNOSTIC ULTRASOUND

被引:534
作者
APFEL, RE
HOLLAND, CK
机构
[1] Yale University, Yale Station, New Haven
关键词
ACOUSTICS; BIOEFFECTS; CAVITATION; DIAGNOSTIC ULTRASOUND; NONIONIZING RADIATION; INDEX; MECHANICAL INDEX;
D O I
10.1016/0301-5629(91)90125-G
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Although no deleterious effects from diagnostic ultrasound have been reported in epidemiologic studies and surveys of widespread clinical usage (Ziskin and Petitti 1988), the conditions for the onset of transient cavitation must be investigated in the total evaluation of potential risks associated with diagnostic ultrasound applications. An extension of the results from the approximate theory developed by Holland and Apfel (1989) is applied in this paper to a population of nuclei to predict the onset of cavitation in host fluids with physical properties similar to those of biological fluids. From this analysis and from results of recent in vitro cavitation experiments, an index is developed which can gauge the likelihood of substantial microbubble growth in the presence of short-pulse, low-duty cycle diagnostic ultrasound.
引用
收藏
页码:179 / 185
页数:7
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