能量多普勒对正常胎儿大脑中动脉阻力参数的检测分析

作者:孙江丽;于海容 刊名:医学影像学杂志 上传者:王艳军

【摘要】目的:了解正常胎儿大脑中动脉(middle cerebral artery,MCA)搏动指数(pulsatility index,PI)、阻力指数(re-sistance index,RI)、收缩期峰值流速与舒张末期流速比值(S/D)的正常参考值范围。方法:应用能量多普勒及脉冲多普勒检测2436例孕16~40周无合并症单胎孕妇,测量胎儿MCA的PI、RI、S/D值并进行分析。结果:胎儿MCA阻力参数指标双侧对比无显著性差异,MCA血流阻力在16~28周时随孕周增加而增高,在孕28~30周时达高峰,孕30周以后随着孕周增加而下降。结论:本文数据可作为正常胎儿MCA血流阻力正常值参考,了解正常胎儿MCA血流阻力在不同孕周的变化规律,对胎儿生长发育的临床监测具有重要意义。

全文阅读

医学影像学杂志2011年第21卷第6期 J Med Imaging Vo!.!!盟!.!!!!! “能量多普勒对正常胎儿大脑中动脉阻力参数的检测分析 孙江丽1,于海容2 (1.北京市隆福医院超声科北京 1000101 2.清华大学第一附属医院超声科北京 100016) 【摘要】 目的:了解正常胎儿大脑中动脉(middle cerebral artery.MCA)搏动指数(pulsatility index·PI)、阻力指数(re— sistance index,RI)、收缩期峰值流速与舒张末期流速比值(S/D)的正常参考值范围。方法:应用能量多普勒及脉冲多普勒检测2436例孕16~40周无合并症单胎孕妇.测量胎儿MCA的PI、RI、S/D值并进行分析。结果:胎儿MCA阻力参数指标双侧对比无显著性差异.MCA血流阻力在16~28周时随孕周增加而增高.在孕28~30周时达高峰。孕30周以后随着孕周增加而下降。结论:本文数据可作为正常胎儿MCA血流阻力正常值参考.了解正常胎儿MCA血流阻力在不 同孕周的变化规律.对胎儿生长发育的临床监测具有重要意义。 【关键词】能量多普勒;胎儿;大脑中动脉;血管阻力;参考值 中图分类号:R714.5;R445.1 文献标识码:A 文章编号:1006·901i(2011)06—0811-03 Detection and analysis of the resistant parameters of normal fetal middle cerebral arteries by power Doppler flowing imaging SUN Jiang—lil。yL,Hai—rong2 1.Department of Ultrasond。Beijing Longfu Hospital.Beijing 100010·P.R.China 2.Department of Ultrasond.First Hospital of Tsinghua University.Beijing 100016·P.R.China [Abstract]Objective:To establish the normal values of pulsatility index(PI)。resistance index(RI),and systolic peak velocity/diastolic velocity(S/D)of fetal middle cerebral artery(MCA).Methods:In 2436 uncomplicated fetuses in gesta。tion ages of 16~40 weeks.MCA were measured with power Doppler and pulsed Doppler.PI.RI,and S/D were measured and analyzed.Results:There were no significant differences between the‘resistant parameters in the left and right MCA(P >O.05).The resistance of MCA increased between 16~28 weeks of gestations。the data increased tO the highest in preg— nant 28~30 weeks and decreased after 30

参考文献

引证文献

问答

我要提问