1·Endocardial cushion defect and the blood transferred between the atriums and the ventricles.
心内膜垫缺损，心房间和心室间左右血流交通。
2·Objective To evaluate the sonographic feature of endocardial cushion defect (ECD) in fetus, also analyze the problems and improve diagnostic ratio of this kind of defects.
目的：探讨胎儿期心内膜垫缺损(ECD)的超声特征，分析诊断中存在的问题，以提高其产前超声诊断率。
3·The main accompanied cardiovascular abnormalities included ventricular septum defect, atrial septum defect, complete endocardial cushion defect, and so on.
主要合并的心血管畸形有室间隔缺损、房间隔缺损、完全性心内膜垫缺损等。