彩色多普勒超声监测生长迟缓胎儿脐动脉血液循环的变化  

Color Doppler monitoring the blood flow velocity waveforms of the fetal umbilical artery of intrauterine growth retardation

作　　者：黄子健[1] 潘素慈[1] 戴常平[2] 李秋明[2] 

机构地区：[1]广州市妇婴医院妇产科,510180 [2]广州市妇婴医院超声科,510180

出　　处：《中华超声影像学杂志》2001年第2期104-105,共2页Chinese Journal of Ultrasonography

摘　　要：目的　应用彩色多普勒超声监测生长迟缓 (IUGR)胎儿的脐动脉血液循环。方法　测定 13 0例妊娠 2 0～ 42周妇女 (其中正常 49例、IUGR 81例 )脐动脉时间平均血流速度 (TAMX)、收缩期最大血流速度与舒张末期血流速度的比值 (S/D)、搏动指数 (PI)、阻力指数 (RI)、收缩期最大血流速度 (Vmax)与舒张末期血流速度(Vmin)。结果　正常孕妇随孕龄增长 ,胎盘功能增强 ,胎儿血液循环日渐丰富。IUGR者则明显障碍 ,在 2 0周时脐动脉TAMX显著下降 ,在 3 0周后S/D、PI及RI显著升高 ,Vmin显著下降 ,在 3 5周时Vmax显著下降。出现舒张期血流停止或倒流。结论　彩色多普勒超声可直接测定脐动脉血液循环 ,能在早期诊断IUGR、判断病情及估计预后。Objective To study the changes of the fetal circulation in intrauterine growth retardation (IUGR) cases.Methods Color Doppler ultrasound was used to detect blood flow velocity waveforms of the umbilical artery (UmA)in 130 pregnant women at 20～42 weeks′ gestation,of which 49 cases were normal pregnancy and 81 cases were IUGR.The indices included time average maximum (TAMX) ,pulsatility index (PI) , resistance index (RI) ,systolic maximum velocity (V max ) /diastolic minimum velocity (V min ) ratio (S/D).Results The results showed that the fetal circulation became abundant gradually with increasing gestational age in normal pregnancy group,but that TAMX was markedly decreased at 20 weeks′ gestation,S/D ratio,PI and RI were markedly elevated,V min was markedly decreased at 30 weeks′ gestation,and V max was markedly decreased at 35 weeks′ gestation in IUGR group.Conclusions Examining blood flow velocity waveforms of UmA by Color Doppler ultrasound was one of the best method to early diagnose and predict the prognosis of IUGR.

关 键 词：超声检查 胎儿生长迟缓 脐动脉 

分 类 号：R445.1[医药卫生—影像医学与核医学]