系统胎儿超声筛查胎儿心脏异常的价值

目的探讨系统胎儿超声在产前筛查胎儿心脏异常中的作用。方法对4501例孕妇进行系统胎儿超声检查，胎儿心脏采用四腔心切面（4C）、左室流出道切面（LVOT）、右室流出道切面（RVOT）、三血管气管切面（3VT）进行初步筛查，疑有心脏异常者则行详细超声心动图检查，复杂心脏异常者建议到省级产前诊断中心复查。所有疑有先天性心脏病的胎儿均经产后或引产后尸体解剖证实。结果在4501例受检胎儿中，实际发生胎儿心脏异常40例，产前检出37例，检出率92．5％；漏诊3例，漏诊率7．5％。结论系统胎儿超声筛查胎儿心脏异常具有较高的准确性，快速、简便，适用于在普通孕妇进行胎儿心脏异常的筛查。

Value of systemic ultrasonography in screening fetal congenital heart malformations

Objective To evaluate the value of systemic ultrasonography in screening fetal congenital heart malformations. Methods A total of 4501 pregnant women underwent systemic ultrasonography with four- chamber（ 4C ）view, left and right ventricular outflow tract（ LVOT and RVOT）views, three vessels and trachea （3VT） view. Fetus with complicated congenital heart malformations were suggested to be re - examined in provincial prenatal diagnosis center. All the fetus with suspected congenital heart malformations underwent detailed echocardiography. All the suspected cases were confirmed by postpartum or induced labor autopsy. Results In 4501 cases, 40 cases were with congenital heart malformations. 37 cases （92.5%） were diagnosed with systemic uhrasonography, the detection rate was 92.5%. While 3 cases were missed diagnosed, the missed diagnosis rate was 7.5%. Conclusion Systemic fetal ultrasonography is simple, convenient, and has high accuracy, which is a preferable way to screen fetal heart malformations.