Acoustic backscattering from ultrasonically tissuelike media.
Acoustic backscattering from ultrasonically tissuelike media.
复制标题
来自超声波组织类介质的声学反向散射。
DOI：
10.1118/1.595194
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发表时间：
1982
期刊：
影响因子：
3.8
通讯作者：
Madsen,EL
中科院分区：
文献类型：
--
作者：
Insana,MF;Zagzebski,JA;Madsen,EL
使用改进的Sigelmann-Reid技术测量了组织模拟（TM）材料的声学后向散射系数，以评估其声学特性与软组织声学特性的相似性。一个简单的参考散射材料被用来探测测量技术的优势和局限性。从TM材料测得的后向散射系数表现出频率依赖性的形式fmin范围为1.0-8.0 MHz，其中3.5≤m≤3.8。后向散射系数也被发现是近似成比例的TM材料中的颗粒浓度的浓度，产生0.9分贝/厘米/兆赫的衰减系数。从TM材料测得的背向散射系数的比较与肝脏，心肌和血液的公布值。
The acoustic backscattering coefficients of a tissue‐mimicking (TM) material have been measured using a modified Sigelmann–Reid technique in order to assess the similarity of its acoustic properties to those of soft tissues. A simple reference scatter material was used to probe the strengths and the limitations of the measurement technique. Backscatter coefficients measured from the TM material exhibit a frequency dependence of the formfmin the range 1.0–8.0 MHz where 3.5≤m≤3.8. The backscatter coefficient is also found to be approximately proportional to the particle concentration in the TM material up to concentrations that yield an attenuation coefficient of 0.9 db/cm/MHz. Comparisons of backscatter coefficients measured from the TM material are made with published values for liver, myocardium, and blood.