目的探讨超声筛查出生缺陷在产前诊断中应用的价值,提高出生缺陷的产前诊断率。方法对1486例住院分娩的出生缺陷儿与产前超声检查对比分析。结果146例胎儿畸形中26例漏诊,诊断率82.19%。结论超声检查安全、便捷、无损伤,能实时观察胎儿各个脏器及部位,已成为产前诊断的首选方法。 Objective To investigate the value of ultrasound screening for birth defects in prenatal diagnosis and to improve the prenatal diagnosis of birth defects. Methods A comparative analysis of 1486 childbirths with birth defects and prenatal echocardiography was performed. Results 146 cases of fetal malformations missed diagnosis in 26 cases, the diagnosis rate was 82.19%. Conclusions Ultrasound examination is safe, convenient and non-invasive. It can observe all fetuses and organs in real time and has become the preferred method of prenatal diagnosis.