结论超声心动图诊断胎儿心脏畸形具有很高的敏感性及准确性，在胎儿产前畸形筛查中有重要的应用价值。
Conclusion fetal echocardiography showed high sensitivity and accuracy in the diagnosis of congenital heart diseases, and is of great value in prenatal screening of fetal congenital diseases.
其优点可一次性成像检查，多数先天性心脏病可获得直观畸形病变的定性和定量诊断。
The advantage of MRI in most congenital heart disease is only require one image examination. We can diagnose the lesion of the deformity both qualitatively and quantitatively by direct observation.
糖尿病合并妊娠可引起胎儿心脏畸形，是先天性心脏病重要的非遗传性风险因素；
Pregestational diabetes mellitus may cause fetal heart defects, and it is considered to be an important non-genetic risk factors for congenital heart defects.
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.
结果本组完全性大血管转位最多见，占34。3%，多为复合畸形。临床表现以发绀最常见，占84。3%，部分病人无发绀、气促、心脏杂音。
Results The most common congenital diseases in the group were complete transposition of the great arteries, with the proportion of 34.4%, and most of them were compounded cardiovascular disorders.
结果本组完全性大血管转位最多见，占34。3%，多为复合畸形。临床表现以发绀最常见，占84。3%，部分病人无发绀、气促、心脏杂音。
Results The most common congenital diseases in the group were complete transposition of the great arteries, with the proportion of 34.4%, and most of them were compounded cardiovascular disorders.
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