In this paper, the formula used to calculate the attenuation slope of ultrasonic tissue mimicking phantoms measured by the DRC method is reported and compared with those from the transmission method.

• 本文还从理论上导出了计算体内组织声衰减系数的计算公式；给出了差比校正法对超声仿真模型的声衰减系数的测量结果；并与传输法所得结果进行了比较.