超声心动图检查应用于临床已有五十几年的历史,近二十几年来发展十分迅速,由于该技术具有无损伤、无痛苦、无离子辐射或放射性危害,设备轻便,可在床旁进行检查,而且小儿胸壁薄,有利于声束的穿透,图像较清晰,因此十分适合于儿科临床应用,目前已广泛地应用于指导小儿心血管及相关 Echocardiography has been used clinically for more than 50 years and has developed rapidly in the past 20 years. Due to its non-invasive, painless, ion-free or radioactive hazard, the device is portable and can be placed beside the bed Check, and pediatric chest wall is thin, is conducive to the penetration of the sound beam, the image clearer, so it is suitable for pediatric clinical applications, has been widely used to guide pediatric cardiovascular and related