超声诊断通常被认为是一种非侵入性检测手段.但欲对其安全性作出可靠的评价,至今还缺乏严格的科学基础.本世纪以来人们对超声的生物效应和安全性进行了大量的研究,其结果颇不一致。这使人们对这一问题的意见和看法长期以来一直存在着分歧. Ultrasound diagnosis is usually considered as a non-invasive detection means, but to make a reliable assessment of its safety, there is still no scientific basis for the rigorous study of the biological effects and safety of ultrasound since the beginning of this century , The result is quite inconsistent. This has led to disagreements about the opinions and perceptions of the people on this issue for a long time.