对1846例中晚期孕妇实施有效的临床分析,怀疑有340例胎儿呈现畸形状况,并对此做出先后两组对比。一组采用二维超声配合四维超声加以诊断,一组采用二维超声,其无论是检出率还是漏诊率,二维超声加四维超声的配合都远远有效于二维超声诊断。因此,为了提高对中晚期胎儿畸形诊断,需要加大运用超声室所表现的价值。与此同时,笔者建议面对中晚期孕妇使用二维超声配合四维超声,会使诊断效果更佳。 An effective clinical analysis of 1,846 middle and late pregnant women was performed. 340 fetuses were suspected to have abnormal deformity, and two contrasts were made between the two groups. A group of two-dimensional ultrasound with four-dimensional ultrasound to be diagnosed, a group using two-dimensional ultrasound, both the detection rate or missed diagnosis, two-dimensional ultrasound plus four-dimensional ultrasound are far more effective in two-dimensional ultrasound diagnosis. Therefore, in order to improve the diagnosis of fetal malformations in the late stage, we need to increase the use of ultrasound room performance value. At the same time, I suggest that in the face of late pregnant women using two-dimensional ultrasound with four-dimensional ultrasound, the diagnosis will be better.