超声筛查胎儿畸形存在问题分析

目的 提高超声筛查胎儿畸形的准确性。方法 回顾分析我院1998年1月至2001年12月在我院行超声检查又在我院分娩的孕妇的资料4503例。结果 筛查出畸形胎儿57例，正常围产儿4400例。无假阳性，漏诊46例，它们是先天性心脏病12例，染色体异常6例，下肢畸形7例，外生殖器畸形3例。多指13例。外耳畸形2例。无肛并直肠舟状宣传员 瘘1例，脑发育不全1例，多发畸形并单脐动脉1例。结论 超声筛查胎儿畸形作用巨大，但还是存在一定的局限性，不能发现没有明显形态改变的胎儿畸形。单纯四腔心切面筛查胎儿心脏畸形存在很大缺陷。需专项检查胎儿心脏。必须加强对胎儿微小结构的检查。

A Study for Detecting Fetal Anomaly by Ultrasound

Objective To raise the level of ultrasound for detecting fetal anomaly. Methods Four thousand five hundred and three pregnant women were examined and delivered in our hospital from Jan 1998 to Dec 2001. Results There were 4400 normal babies,57 fetal anomalies detected by ultrasound,while 46 fetal anomalies undetected by ultrasound,including 12 congenital heart diseases,6 chromosomal abnormal,1 encephalodyspasia,27 other anomalies.There were no false positive. Conclusion Ultrasound examination is especially helpful for detcting fetal anomaly.But there are some limitations when there is no structural changes.There is much deficiency in detecting fetal heart anomaly with the simple 4 chamber view.It needs echocardiogrophy.It must be improved to examine the minor structure.