摘要
本文讨论了一种从超声散射回波进行衰减系数谱估计的原理和方法,并用所研制的一套全自动化谱测试系统对一系列新鲜离体动物软组织进行了实验研究。结果表明,测量精度与准确度都是令人满意的。文章最后指出,这种衰减谱估计方法因为能在活体条件下对组织进行定征而具有研究价值。
In this paper a principle and method of estimating ultrasound attenuation spectrum from a backscattering echo are described. A series of experimental studies on fresh in vitro animal soft tissues have been completed by using the established in our laboratory automatic spectrum measuring system. The obtained results show that the measurement accuracy and precision are satisfactory. It is pointed out that this method of estimating attenuation spectrum, as one can be used for ultrasound tissue characterization, is of worth to study.
出处
《声学学报》
EI
CSCD
北大核心
1992年第2期129-134,共6页
Acta Acustica
基金
国家自然科学基金资助项目
