This paper describes the measurement procedure of ultrasonic attenuation coefficients and ultrasonic velocity tomography.
本文对超声衰减系数和超声声速断层成像的测量过程进行了描述。
Objective: To study the diagnostic role of broadband ultrasonic attenuation (BUA) in measurement of bone mineral density.
目的：探讨跟骨宽带超声衰减诊断骨质疏松的临床价值。
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