Fröhlich P, Gramlich B
Z Exp Chir. 1979;12(6):358-63.
Measurements on the lower leg of a corpse and on fresh human tibiae were carried out in the diaphysis with the ultrasonoscope GA 20 by using a frequency of 1 MHz. The maximum possible transsound distance of the tibia was much smaller hitherto supposed. No alteration of the ultrasound debilitation could be observed in the model test even if a complete severance of the tibia was in hand in case the fracture crack was filled up with fluid. Changes of the transfer speed proved to be extremely small. The measuring methods with 1 MHz in order to check the process of the fracture healing are very problematic.
使用频率为1兆赫的GA 20型超声仪，在尸体小腿以及新鲜人胫骨的骨干处进行了测量。胫骨的最大可能超声传播距离比迄今所认为的要小得多。在模型试验中，即使胫骨完全断裂且骨折裂缝充满液体，也未观察到超声衰减的变化。传播速度的变化被证明极小。用1兆赫的测量方法来检查骨折愈合过程存在很大问题。
