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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
14:19

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction

Published on: June 29, 2013

[Echocardiographic study on the anatomy and blood flow pattern of ductus arteriosus in normal fetus]

Y F Wu1

  • 1Anzhen Hospital, Beijing.

Zhonghua Fu Chan Ke Za Zhi
|September 1, 1993
PubMed

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.

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