| 彩色多普勒检测胎儿脑血流的临床意义 |
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| 引用本文： | 张燕妮,徐增祥.彩色多普勒检测胎儿脑血流的临床意义[J].中国超声医学杂志,1993,9(4):242-243. |
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| 作者姓名： | 张燕妮 徐增祥 |
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| 作者单位： | 济南军区总医院
(张燕妮)，济南军区总医院(徐增祥) |
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| 摘 要： | 本文运用彩色多普勒超声血流显像技术,检测正常妊娠和妊高征胎儿脑动脉脐动脉的血流速度波型,计算两血管的阻力指数(RI_(mca)和RI_(ua)),发现在正常妊娠晚期RI_(mca)/RI_(ua)>1,重度妊高征时RI_(mca)/RI_(ua)≤1。RI_(mca)/RI_(ua)值与妊高征孕妇血压的关系在统计学上呈明显负相关,方程Y=158—50.12 X,r=0.86,表明妊高征本身伴有脐动脉阻力指数的慢性增加。相比之下。脑血管阻力在受损的情况下表现为下降,与低血氧的程度有显著关系,其阳性拟然比25.97,阴性拟然比0.15。
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| 关 键 词： | 妊娠高血压 超声波 胎儿 脑血流 |
Clinical Significance of Fetal Brain Blood Flow Examined by Color Doppler |
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| Zhang Yanni,Xu Zengxiang Jinan General Hospital of PLA.Clinical Significance of Fetal Brain Blood Flow Examined by Color Doppler[J].Chinese Journal of Ultrasound in Medicine,1993,9(4):242-243. |
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| Authors: | Zhang Yanni Xu Zengxiang Jinan General Hospital of PLA |
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| Abstract: | Fetal brain flow velocity waveforms were displayed by color Doppler . The results showed ratio of fetal middle cerebral artery resistance index (RImcA ) to Umbilical artery resistance index (RIuA) in normal trimester pregnancy was greater than one (RImcA/RIuA ratio>1 ). It revealed negative relation with blood pressure in hypertension induced by pregnacy (Y=158 -50. 12X. r = 0. 86). It suggested that RIuA in hypertension induced by pregnancy chronically increased and RImcA decreased . RlmcA/RIuA ratio<1 in hypertension induced by pregnancy is a higher predicative value for perinatal outcome than umbilical artery flow velocity waveforms. The positive likelihood ratio is 25. 97. The negtive likelihood ratio is 0. 15. |
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| Keywords: | Color Doppler Hypertension induced by pregnancy Resistance Index |
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