胎儿超声心动图是以胎儿心脏血流动力学为基础，节段诊断法为根本，结合临床知识及动态图像进行诊断。
Fetal echocardiography is based on the fetal circulation and segmental analysis, combined with clinical knowledge and dynamic image for diagnosis.
方法回顾性分析5例胎儿三尖瓣下移畸形（经胎儿心脏超声检查诊断）的超声图像与随访结果，分析各切面的二维声像和彩色多普勒血流特点。
Methods Retrospective analyses of 2D-heart views and CDFI(color Doppler flow image) as well as the follow-up findings were made in 5 cases with fetal Ebstein anomaly.
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