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妊娠末期胎儿胎盘血液循环的超声检测

Medical Journal of West China(2009)

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Abstract
目的探讨胎盘脐带血流指标与新生儿体重、羊水量及胎盘重量的关系。方法利用超声对102例孕妇产前2周内进行胎盘及脐带血流测定,分娩后记录新生儿身高、体重、胎盘重量及羊水量,并分析其相关性。结果102例正常妊娠、胎盘重量与新生儿体重呈高度相关关系,脐动脉、脐静脉血流量与胎盘重量之间无明显依赖性。胎盘重量与脐动脉收缩期速度/舒张期速度、舒张期速度/收缩期速度之间,脐动脉血流量与羊水量之间、脐动脉RI与羊水量之间均呈低度相关。结论新生儿体重与胎盘重量呈正相关,妊娠终期羊水量与胎盘、脐带血流指标无明显相关,脐带血流速度频谱S/D比值是观察胎盘血管阻力的重要指标。
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Key words
blood circulation in fetal placenta,neonate weight,placenta weight,ultrasonography,pregnancy trimester,amniotic fluid volume
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