彩色多普勒超声对胎儿宫内生长迟缓的检测

Detection of Fetal Intranterine Growth Retardation by Color Doppler Ultrasound

本文用彩色多普勒血流显像（ＣＤＦＩ）对８９例正常妊娠和５８例胎儿宫内生长迟缓（ＩＵＧＲ）进行血流动力学检测发现正常妊娠时ＴＡＶ、Ｑ随孕周增加而增加，Ｓ／Ｄ比值随孕周增加而下降，孕３０周后Ｓ／Ｄ＜３．０；ＩＵＧＲ时孕２０周即出现ＴＡＶ、Ｑ降低，以脐静脉、脐动脉较明显，子宫动脉亦有不同程度改变，异常占９２．５３％，而脐动脉的ＰＩ、ＲＩ、Ｓ／Ｄ比值至孕３０周才均有不同程度改变，Ｓ／Ｄ异常占８１．０３％，两者相比Ｐ＜０．０１差异有极显著性意义。ＴＡＶ、Ｑ是检测胎儿血循环的敏感指标。

The fetoplacental and uteroplacental hemodynamics were detected in 89 normal pregnantand 58 IUGR patients with color Doppler flow imaging (CDFI). The results showed that TAV and Qwere gradully increasing, and S/D ratio was deareasing during normal Pregnant period. After 30thweeks of pregnancy, the S/D ratio was less than 3. 0. But in IUGR group,we found both TAV and Q ofUmA Umv and UtA descended after 20th weeks of pragnancy, especially after 30th weeks,in 92, 53% ofpatients. PIRI and S/d ratio were elevated until 30th weeks pregnancy, and the abnormal S/D ratio appeared in 81. 03% of IUGR patients. But there were no significant changes of RI and S/D ratio in UtA.The results suggest that there were significant abnormal helllodynamic changes of fetoplacent and uteroplacent in IUGR patients compared with normal pregnancy. TAV and Q are sensitive indexes to detectfetal circulation.