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目的应用多普勒超声监测胎儿时期肝内门脉系统的血流参数。方法应用EUB565A型彩色多普勒诊断仪检测50例胎儿门脉主干、门脉右支、门脉左支囊部及静脉导管和脐静脉的平均血流速度及流量。结果各血管血流速度的顺序是静脉导管>脐静脉>门脉主干及其左、右支(P<0.05),血流量的顺序是脐静脉>门脉左支>门脉主干>静脉导管(P<0.05)。结论多普勒超声是评价胎儿门静脉系统血流的最佳方法。
Objective To monitor the blood flow parameters of intrahepatic portal system in fetal period by using Doppler ultrasound. Methods EUB565A color Doppler diagnostic apparatus was used to detect the average blood flow velocity and flow of 50 cases of fetal portal vein, right portal vein, left portal vein and venous catheter and umbilical vein. Results The order of blood flow velocity of the vessels was from the catheterization> umbilical vein> portal vein and the left and right branches (P <0.05). The order of the blood flow was umbilical vein> portal vein left branch> portal vein stem> vein catheter P <0.05). Conclusion Doppler ultrasound is the best method to evaluate the fetal portal vein blood flow.