ULTRASONIC BACKSCATTERING FROM HUMAN TISSUE - REALISTIC MODEL
ULTRASONIC BACKSCATTERING FROM HUMAN TISSUE - REALISTIC MODEL
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DOI：
10.1088/0031-9155/22/2/011
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发表时间：
1977-01-01
影响因子：
3.5
通讯作者：
LEEMAN, S
中科院分区：
文献类型：
--
作者：
GORE, JC;LEEMAN, S
描述了超声脉冲在非均匀介质中的传播；它们被密度和可压缩性的波动所散射。由诊断脉冲回波设备记录的一些回波可以以这种方式产生。使用关于组织不均匀性的性质和所使用的脉冲形式的实际近似来计算来自组织的后向散射声场的精确形式。这些信号中仅包含关于组织结构的有限信息，并且指示了由使用典型脉冲施加的限制。讨论了这一分析对组织定征和临床成像方法的意义。
The propagation of ultrasound pulses in inhomogeneous media is described; they are scattered by fluctuations in density and compressibility. Some of the echoes recorded by diagnostic pulse echo equipment may be produced in this way. The precise form of the acoustic field backscattered from tissues is calculated using realistic approximations about the nature of tissue inhomogeneities and the form of the pulses used. Only limited information about tissue structure is contained in these signals, and the restrictions imposed by the use of typical pulses are indicated. The implications of this analysis for methods of tissue characterization and clinical imaging are discussed.