QUANTITATIVE ULTRASOUND IMAGING - IN-VIVO RESULTS IN NORMAL LIVER
QUANTITATIVE ULTRASOUND IMAGING - IN-VIVO RESULTS IN NORMAL LIVER
复制标题
DOI：
10.1006/uimg.1993.1021
复制
发表时间：
1993-10-01
影响因子：
2.3
通讯作者：
YAO, LX
中科院分区：
文献类型：
--
作者：
ZAGZEBSKI, JA;LU, ZF;YAO, LX
A method for quantitative imaging of ultrasonic backscatter levels has been implemented on a clinical imager. The method is based on comparing echo signal data from a sample or patient to echo data processed in the same way but acquired from a reference phantom. The attenuation coefficient and the backscatter coefficient of the reference phantom are known, permitting these quantities to be estimated for the sample. In the present paper, the spatial location of echo data acquisition is retained in the backscatter data analysis; quantitative ''backscatter estimator'' images are constructed, from which the backscatter coefficient over a region of interest may be obtained. When applied to human liver images, backscatter coefficients determined in 10 normal subjects were in approximate agreement with in vitro liver backscatter coefficients reported by previous workers. (C) 1993 Academic Press, Inc.
