目的：探讨冠状切面在胎儿完全型肺静脉异位引流超声诊断中的应用价值。方法：对19例胎儿心脏超声检查诊断单纯完全型肺静脉异位引流（TAPVD）病例，声束从胎儿左侧或右侧入射，获取胸部及腹部前后系列冠状切面，显示肺静脉引流部位及路径，对完全型肺静脉异位引流进行分型，与产后超声心动图检查、手术结果或尸体解剖结果进行对比。结果：19例胎儿单纯TAPVD病例均于产后证实，其中心上型8例，应用冠状切面完整显示引流途径并准确分型8例；心内型6例，应用冠状切面完整显示引流途径并准确分型2例；心下型2例，应用冠状切面完整显示引流途径并准确分型2例；混合型3例，其中2例引流途径为心上型+心下型，1例为心上型+心内型，应用冠状切面完整显示引流途径并准确分型2例。结论：对于胎儿心上型和心下型TAPVD，冠状切面具有明显优势，可以快速、准确的判断肺静脉引流路径，进行准确分型，为临床预后评估提供准确的指导；对于心内型TAPVD肺静脉引流路径的显示，冠状切面优势不明显；对于混合型TAPVD，因其引流途径复杂多变，冠状切面显示引流路径具有一定优势；冠状切面对于肺静脉引流路径中有无梗阻以及梗阻部位的判断有指导价值。

Objective: To explore the application value of coronal plane in ultrasonic diagnosis of fetal total anomalous pulmonary venous drainage(TAPVD). Methods: A series of coronal sections of the chest and abdomen were obtained with the beam coming from the left or right side of the fetuses in 19 cases of simple total anomalous pulmonary venous drainage (TAPVD) diagnosed by echocardiography to demonstrate location and path of pulmonary venous drainage. The types of the total anomalous pulmonary venous drainage were classified and compared with postpartum echocardiography results, surgical results or autopsy results. Results: All 19 cases of simple fetal TAPVD were confirmed postpartum, including 8 cases of supracardiac type. There were 8 cases with complete drainage pathway displayed and accurately classificated using coronal plane imaging. There were 6 cases of intracardiac type, and there were 2 cases with complete drainage location and pathway displayed and accurately classificated by coronal plane. There were 2 cases of infracardiac type, and there were 2 cases with complete drainage pathway displayed and accurately classificated by coronal plane. There were 3 cases of mixed type, of which 2 cases’ drainage pathway was supercardiac type+subcardiac type, and 1 was supercardiac type+intracardiac type, and there were 2 cases with complete drainage pathway displayed and accurately classificated by coronal plane. Conclusion: For the fetal supracardiac type and infracardiac type TAPVD, coronal section has obvious advantages, which can judge the pulmonary venous drainage path quickly and accurately, make accurate classification and provide accurate guidance for clinical prognosis evaluation. For the display of pulmonary venous drainage pathway in intracardiac type TAPVD, the advantage of coronal section is not obvious. For the mixed type TAPVD, coronal plane shows the drainage path with a certain advantage because of its complex and varied drainage path. Coronal section has guiding value for the diagnosis of obstruction and the location of obstruction in the pulmonary venous drainage pathway.