随着超声仪器的性能和检查技术的进步，特别是高分辨力超声的应用，使超声诊断视野更加开阔，尤其在新生儿疾病诊断方面，越来越多的新生儿疾病被超声所发现。对新生儿疾病早期诊断和治疗是降低新生儿死亡率、减少后遗症的重要方法之一。因而我们在学习国内外先进经验的基... As the performance of ultrasonic instruments and the advancement of examination techniques, especially the application of high resolution ultrasound, have broadened the field of ultrasound diagnosis, especially in the diagnosis of neonatal diseases, more and more neonatal diseases have been found by ultrasound. Early diagnosis and treatment of neonatal diseases is one of the important ways to reduce neonatal mortality and reduce sequelae. So we are studying the basis of advanced experience at home and abroad.