三维超声成像技术在胎儿畸形诊断中的临床价值分析

目的：应用三维超声成像技术探讨在胎儿畸形诊断方面的临床价值并与二维超声进行比较。方法：采用Medison-8000Live三维超声显像仪的表面成像、透明成像方法连续观察了1200例早中晚期妊娠胎儿的三维超声影像。结果：三维超声在胎儿畸形诊断中敏感性、特异性、准确性分别为92．8％、100％、99．9％，而二维超声分别为64．2％、99．6％、99．2％。结论：三维超声可提供二维超声所没有的第三平面图像，即可提供更丰富的诊断信息，在诊断胎儿畸形方面诊断率高于二维超声且图像逼真直观，是产前检查胎儿畸形的有效方法。

Analysis of Clinical Value of Three-dimensional Ultrasonography in Diagnosis of Fetal Malformation

Objectives:To assess the clinical value of three-dimensional ultrasonography(3DUS) in the diagnosis of fetal malformation and to be compared with two-dimensional ultrasonography(2DUS). Methods:A total of 1200 fetuses in their first or second trimester of gestation were observed by using 3DUS and 2DUS. Results:The sensibility, specificity and accuracy rate of 3DUS are 92.8%, 100%, and 99.9% respectively, while for 2DUS they are 64.2%, 99.6%, and 99.2% respectively.Conclusions:3DUS can offer more plentiful diagnostic information than 2DUS, and it is also an efficient method to detect fetal malformation before delivery.