本文应用B超诊断先天性胎儿畸形共21例均为临床分娩后证实.报告如下:孕妇年龄均为23～38岁,一般在中、晚期妊娠来我院进行B超检查,其中1例为近亲结婚.使用仪器为美国RT-2800、RT-fino、丹麦BK、西德SIEMEMS Pritna,采用凸形超声扫查仪、频率3.5MHz.孕妇取仰卧位,侧卧位,探头沿着胎头脊柱依次扫查. This application of B-ultrasound diagnosis of congenital fetal malformations in 21 cases were confirmed after clinical delivery.Report as follows: Pregnant women were 23 to 38 years of age, usually in the late pregnancy to our hospital for B-ultrasound, of which 1 case of close relatives Married. The instruments used for the United States RT-2800, RT-fino, Danish BK, West GermanyEMEMS Pritna, convex ultrasound scanner, frequency 3.5MHz. Pregnant women to supine, lateral position, the probe along the fetal head and spine Scan.