胎儿超声心动图的初步研究

本文报告106例正常胎儿(妊娠16～40周)的超声心动图资料,发现如下特征:①右房、右室略大于左房,左室;②主动脉内径与肺动脉相似;③房、室和大血管的內径均随着妊娠周数的增加而增大;④脉冲式多普勒超声心动图(PDE)峰值流速三尖瓣快于二尖瓣,但肺动脉瓣慢于主动脉瓣;⑤正常卵圆孔的大小为3～5nm。为了尽早发现并处理胎儿心脏畸形,作者建议凡是具有高危因素的胎儿应常规作胎儿超声心动图检查。本文还对方法学作了讨论。

PRELIMINARY STUDIES OF FETAL ECHOCARDIGORAPHY

106 cases of fetal heart was examinated by M-mode Cross-sectional and Pulsed Doppler echocardiography from 1987. 1～1988. 4. The gestational age was 16～ 40 weeks. We found some features in these cases:(1)The right heat was bigger than the left heart; (2)The aorta was the same as that pulmonary artery; (3) The atriums, ventricles and the great vessels enlarged with gestational age; (4) The tricuspid velocity was faster than the mitral velocity but the puhmonary velocity was slower than the aortic veloci- ty ; (5)The size of the foramen ovale was 3～5mm.Finally, the authors suggest that in order to find some congenital heart malformations and manage these cases as early as posible ultrasonic routine examination should be performed in the mid period of pregnancy, particularly at high risk obstetric clinic. The method was also discussed.