Singh V R, Agarwal R
National Physical Laboratory, New Delhi, India.
Ultrasonics. 1989 Mar;27(2):114-5. doi: 10.1016/0041-624x(89)90023-1.
Measurements of ultrasonic speed, attenuation and other derived physical properties of gallstones, in vitro, have been evaluated and reported. A double-probe-contact through-transmission technique was used; the average values of ultrasonic speed and attenuation were found to be 1897 m s-1 and 10.2 dB cm-1, respectively, at 2.5 MHz (the value of speed thus being about 25% higher than that in water or soft biological tissues). The object of the present study was to determine the characteristics of stones to permit the optimization of a disintegrator design.
已经对胆结石的超声速度、衰减及其他衍生物理特性进行了体外测量并予以报道。采用了双探头接触式穿透传输技术；在2.5兆赫兹时，超声速度和衰减的平均值分别为1897米/秒和10.2分贝/厘米（因此速度值比水或柔软生物组织中的速度值约高25%）。本研究的目的是确定结石的特性，以便优化碎石器的设计。
