Wu Y F
Anzhen Hospital, Beijing.
Zhonghua Fu Chan Ke Za Zhi. 1993 Sep;28(9):530-1, 568-9.
The anatomy and blood flow pattern of ductus arteriosus in fetus were studied by echocardiogram in 51 pregnant women. According to the duration of pregnancy, women were divided into 3 groups: group A (15-24 weeks) 15 cases; group B (25-34 weeks) 23 cases; and group C (35-41 weeks) 13 cases. The mean blood flow velocity in ductus arteriosus was 88.8 cm/sec in group A, 112.7 cm/sec in group B, and 130.4 cm/sec in group C (P < 0.0001), and they were significantly higher than that in aorta and pulmonary artery (P < 0.001). The characteristics of Doppler blood flow pattern was higher peak velocity in systolic and lower in diastolic. The ratio of diameter of right pulmonary artery to ductus arteriosus was 1:1. To recognize the characteristic blood flow pattern is a reliable sign to identify ductus arteriosus in fetus, and reference data of ductus arteriosus blood flow was presented.
采用超声心动图对51例孕妇胎儿动脉导管的解剖结构及血流模式进行了研究。根据孕周，将孕妇分为3组：A组（15 - 24周）15例；B组（25 - 34周）23例；C组（35 - 41周）13例。A组动脉导管平均血流速度为88.8 cm/秒，B组为112.7 cm/秒，C组为130.4 cm/秒（P < 0.0001），且均显著高于主动脉和肺动脉（P < 0.001）。多普勒血流模式的特点是收缩期峰值速度较高，舒张期较低。右肺动脉与动脉导管直径之比为1:1。认识特征性血流模式是识别胎儿动脉导管的可靠标志，并给出了动脉导管血流的参考数据。
