声诊断仪是利用人体不同组织之间、病理组织与正常组织之间的声学特性差异，或生理结构在运动中的物理效应，经超声波扫描探查、接收处理所得信息，并以图像、图形或数字形式为医学诊断提供依据。 由于超声波也是一种能量，在用超声诊断仪作孕期检查时，如辐射剂量过大，会对早 Acoustic diagnosis is the use of the human body between different tissues, the difference between the acoustic characteristics of the pathological and normal tissues, or the physiological effects of physical structure in motion, by ultrasonic scanning to explore, receive and process the information, and images, graphics or numbers Form to provide the basis for medical diagnosis. Because ultrasound is also an energy in the use of ultrasound diagnostic apparatus for pregnancy check, such as the radiation dose is too large, will be early