【摘要】 目的探讨四维超声成像(实时三维)在诊断胎儿畸形的临床应用价值。 方法回顾性分析960例孕期产前检查(12~28周)孕妇，发现胎儿畸形24例，均经引产和产后证实。 结果胎儿畸形25例，四维超声检出24例，符合率为96%，漏诊1例，漏诊率为4%。 结论四维超声能够动态连续显示胎儿在宫内的活动，显示胎儿表面结构立体完整并安全简便无损伤，可重复检查。能诊断大部分胎儿形态结构方面的畸形，降低出生缺陷具有重要临床应用价值。

    【关键词】四维超声；实时三维；胎儿畸形；诊断

    【Abstract】 ObjectiveTo evaluate the ultrasonography in diagnosing congeninal fetal anomaly. Methods960 cases of pregnant women were reviewed and analysed in pre-partum examination(12-28 weeks),congenital fetal deformity was revealed in 24 cases and all cases were confirmed after abortion or delivery. ResultsUltrasonography detected the congeninal anomaly in 24 cases out of 25 cases,the rate of fully accurate diagnocis was 96%,and the partially accordant diagnosis in 1 case (4%). ConclusionUltrasonography can consecutively display fetal activity in uterus in dynamic state,and can display fetal surface constitution integrity,is a safe,convenient,non-invasive,repeatable modality to diagnose most fetal anomaly in morphous constitution,which plays an important role in reducing occurance of birth defects. ......