脐带绕颈胎儿大脑中动脉与脐动脉的阻力指标比值研究  

Study on the middle cerebral and umbilical artery resistance index ratio of fetus with umbilical cord around the neck

作　　者：詹林[1] 林毅[1] 傅彬[1] 文桂琼[1] 阳玉晶[1] 

机构地区：[1]桂林医学院附属医院超声科,广西桂林541001

出　　处：《华夏医学》2011年第5期511-513,共3页Acta Medicinae Sinica

基　　金：广西壮族自治区卫生厅自筹资金科研课题资助(Z2009031)

摘　　要：目的:通过检测妊娠晚期脐带绕颈胎儿大脑中动脉(MCA)及脐动脉(UA)的阻力指标比值,探讨其预测胎儿宫内缺氧的价值。方法:用彩色多普勒超声对70例正常晚期妊娠胎儿和65例脐带绕颈胎儿MCA、UA的阻力指标及比值进行检测分析。结果:各组间比较,胎儿MCA和UA阻力指标比值有显著性差异(P<0.05);正常组与绕颈1周组阻力指标比较无差异(P>0.05),与绕颈2周及2周以上组比较有显著性差异(P<0.01);绕颈1周组与绕颈2周及2周以上组比较也有显著性差异(P<0.05)。结论:胎儿大脑中动脉和脐动脉阻力指标比值预测脐带绕颈胎儿宫内缺氧优于单项阻力指标,有良好的临床诊断价值。Objective： To investigate the value of middle cerebral artery（MCA） and umbilical artery （UA） resistance index ratio in predicting fetal hypoxia in fetus with umbilical cord around the neck in late pregnancy. Methods. 70 normal fetuses in late pregnancy and 65 fetuses with umbilical cord around the neck were measured for MCA and UA resistance index by means of color Doppler ultra- sonography. Results. Significant differences were found in MCA and UA resistance index ratio be- tween the groups（P（0.05）. No significant difference was found in the resistance index between the normal group and around the neck（one round） group（P^0.05）, but very significant difference was found between normal group and around the neck（two rounds and more） group（P（0.01）, and between the two rounds and one round groups（P（0.05）. Conclusion. The MCA and UA resistance index ratio is a better indicator than its resistance index in predicting fetal hypoxia of fetuses with umbilical cord around the neck, and is very useful for diagnosis.

关 键 词：胎儿 大脑中动脉 脐动脉 阻力指标比值 

分 类 号：R445.1[医药卫生—影像医学与核医学] R722.19[医药卫生—诊断学]