产前超声在胎儿消化道异常诊断中的价值

Value of prenatal ultrasound in diagnosis of fetal digestive tract abnormality

目的探讨产前超声在胎儿消化道异常诊断中的价值,提高其对胎儿消化道疾病诊断的准确率。方法回顾性分析22例产前超声筛查并发现先天性消化道异常的患儿和13例产前超声未发现异常但出生后检出先天性消化道异常患儿的声像图资料。结果 22例产前超声发现胎儿消化道异常征象者中,出生后检出先天性消化道畸形16例,阳性预测值为72.7%。29例消化道先天异常患儿中,产前超声检出16例,总检出率为55.2%。结论产前超声筛查对胎儿消化道畸形的部位无法直接显示,对消化道畸形检出率有一定限制,但通过间接征象的显示以及多次重复的细心检查能有效检出绝大部分消化道畸形。

To explore the value of prenatal ultrasound in diagnosis of fetal digestive tract abnormality, and to improve prenatal ultrasonographic diagnosis accuracy for disease of digestive tract. Methods Twentytwo cases of digestive tract abnormality screened by prenatal ultrasound and 13 cases who were not diagnosed by prenatal ultrasound but confirmed after birth were enrolled in the study. The results were retrospectively analyzed. Results In 22 cases of suspected digestive tract abnormality, 16 cases were confirmed after birth, the positive predictive value of prenatal ultrasound was 72.7% ; in 29 cases of digestive tract abnormality, 16 cases were accurately diagnosed by ultrasound, the detection rate was 55.2%. Conclusion Prenatal ultrasound has some limits in detecting fetal digestive tract abnormality for it couldn＇t display the location of abnormality, but with indirect signs and repeated careful examination, most of fetal digestive tract abnormality can be detected by prenatal ultrasound.