【摘要】 目的:探讨三维超声成像在胎儿体表畸形诊断的临床价值。方法:利用三维超声仪对在我院进行产前检查的妊娠20~41周的3241例孕妇、共3277个胎儿进行二维及三维超声检查,统计并比较超声诊断与随访结果。结果:140例各种发育异常胎儿,其中体表畸形胎儿34例,二维超声诊断正确者21例,9例体表畸形胎儿二维超声检查不能作出明确诊断;三维超声进一步检查诊断正确者共30例;二维及三维超声检查误诊1例胎儿足内翻,生后证实正常,漏诊1例耳廓缺失、2例多指畸形,生后随访证实。三维超声对胎儿体表畸形检出的敏感性、特异性及准确性分别为90.91%、99.97%、99.88%;二维超声对胎儿体表畸形检出的敏感性、特异性及准确性分别为63.64%、99.97%、99.60%。结论:三维超声能直观显示胎儿体表结构,三维超声检查诊断胎儿体表畸形的敏感性、特异性及准确性高,是二维超声检查的重要补充,与二维超声联合应用,可提高胎儿体表畸形的检出率。更多还原

【Abstract】 Objective:To evaluate the diagnostic value of three-dimensional ultrasound in fetal surface malformations.Methods:3277 fetuses ranging gestational age between 20～41 weeks were examined with two-dimensional and three-dimensional ultrasound and followed up after delivery.Results:A total of 140 cases fetuses with various malformations were confirmed after delivery.Among them,34 cases were surface malformations.The 21 cases were diagnosed by two-dimensional scanning;The 30 cases were diagnosed by three-dimensional scanning.The three-dimensional ultrasound sensitivity,specificity and the accurate rates of diagnosis of fetal surface malformations were 90.91%,99.97% and 99.88%.The two-dimesional ultrasound sensitivity,specificity and the accurate rates of diagnosis of fetal surface malformations were 63.64%,99.97% and 99.60%.Conclusion:Three-dimensional ultrasound can intuitively display fetal surface structure,its sensitivity,specificity and the accurate rates of diagnosis of fetal surface malformations is high.It is the important complementarily of the two-dimensional ultrasound and can enhance the detection rate of the surface malformations combined with the two-dimensional ultrasound.更多还原