| 能量多普勒对正常胎儿大脑中动脉阻力参数的检测分析 |
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| 引用本文： | 孙江丽,于海容.能量多普勒对正常胎儿大脑中动脉阻力参数的检测分析[J].医学影像学杂志,2011,21(6):811-813. |
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| 作者姓名： | 孙江丽 于海容 |
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| 作者单位： | 1. 北京市隆福医院超声科,北京,100010
2. 清华大学第一附属医院超声科,北京,100016 |
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| 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。
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| 关 键 词： | 能量多普勒 胎儿 大脑中动脉 血管阻力 参考值 |
Detection and analysis of the resistant parameters of normal fetal middle cerebral arteries by power Doppler flowing imaging |
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| SUN Jiang-li,YU Hai-rong.Detection and analysis of the resistant parameters of normal fetal middle cerebral arteries by power Doppler flowing imaging[J].Journal of Medical Imaging,2011,21(6):811-813. |
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| Authors: | SUN Jiang-li YU Hai-rong |
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| Institution: | SUN Jiang-li1,YU Hai-rong21.Department of Ultrasond,Beijing Longfu Hospital,Beijing 100010,P.R.China2.Department of Ultrasond,First Hospital of Tsinghua University,Beijing 100016,P.R.China |
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| 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 gestation 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>0.05).The resistance of MCA increased between 16~28 weeks of g... |
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| Keywords: | Power Doppler flowing imaging Fetus Middle cerebral artery Vascular resistance Reference values |
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