中晚孕期正常胎儿静脉导管频谱特点

发布时间：2018-07-05 12:10

本文选题：胎儿静脉导管 + 彩色多普勒　；参考：《中国超声医学杂志》2015年05期

【摘要】：目的探讨不同孕周的正常胎儿DV的阻力指数(DVI)、搏动指数(PIV)及静脉峰值流速指数(PVIV)的参数变化,建立胎儿DV的DVI、PIV及PVIV的正常值范围。方法选取不同孕周的472例孕妇,胎儿正常,按孕周分为7组。行胎儿静脉导管检查,留取静脉导管彩色多普勒图像及其频谱测量图像,分析静脉导管频谱,获取静脉导管参数。所有数据采用SPSS 19.0软件行统计学分析。结果正常胎儿静脉导管DVI、PVIV及PIV与孕周关系的曲线回归方程:DVI:y=exp(-1.103+9.857/x),(r=0.733,P0.01);PVIV:y=exp(-0.996+10.086/x),(r=0.694,P0.01);PIV:y=exp(-0.953+10.540/x),(r=0.696,P0.01)。如果不考虑孕周影响,胎儿静脉导管DVI、PVIV、PIV的95%预测范围分别是(0.31,0.75)、(0.33,0.87)、(0.35,0.93)。结论胎儿静脉导管的DVI、PIV及PVIV与孕周关系密切,随着孕周的增加减低,本研究的DVI、PIV及PVIV的95%预测范围可为静脉导管的异常变化提供临床参考。
[Abstract]:Objective to explore the parameters of resistance index (DVI), pulsatile index (PIV) and peak venous flow index (PVIV) of normal fetal DV, and to establish the normal range of DVI, PIV and PVIV of fetal DV. Methods 472 pregnant women with different gestational weeks were selected and divided into 7 groups according to the gestational age. Color Doppler image and its spectrum measurement image, analysis of venous catheter spectrum, obtain venous catheter parameters. All data were statistically analyzed by SPSS 19 software. Results the regression equation of normal fetal venous catheter DVI, PVIV and PIV and gestational weeks: DVI:y=exp (-1.103 +9.857/x), (r=0.733, P0.01); PVIV:y=exp (-0.996+10.086/x), (r=0.694, P0.01); PIV:y=exp (-0.953+10.540/x), (r=0.696, P0.01). The 95% prediction range of fetal venous catheter DVI, PVIV, and PIV is (0.31,0.75), and (0.35,0.93), respectively, if the effects of gestational weeks are not considered. The 95% prediction range can provide clinical reference for abnormal changes of venous catheter.
【作者单位】：南方医科大学附属沧州市人民医院超声科;河北医科大学第二医院超声科;
【分类号】：R445.1;R714.5

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