彩色多普勒检测肝外阻塞性黄疸肝脏肾脏血流动力学改变

目的：应用彩色多普勒研究肝外阻塞性黄疸（阻黄）患者的肝、肾脏血流动力学改变。方法：彩色多普勒检测阻黄患者３０例（对照组正常人２０例）的门静脉、肝动脉管径，门静脉血流速度，肝、肾动脉收缩期峰值速度（Ｖｍａｘ），舒张末期峰值速度（Ｖｍｉｎ）、及其时间平均速度（Ｖｍｅａｎ）和其阻力指数（ＲＩ）。结果：阻黄时，门静脉管径及其流速、流量与正常人比较无统计学意义（Ｐ＞０．０５）；肝动脉管径明显扩张，肝动脉流速、流量增多与正常人比较有统计学意义（Ｐ＜０．０５）。肝动脉阻力指数与正常人比较无统计学意义（Ｐ＞０．０５）；肾动脉流速、流量及其阻力指数与正常人比较无统计学意义（Ｐ＞０．０５）。结论：阻黄时，肝脏血流量明显增多，门静脉，肾动脉的血流量与正常人无明显差异

Color Doppler Flow Imaging Analysis of Liver and Kidney Hemodynamics in Extrahepatic Obstructive Juandice Patients

Objective and Methods:CDFI was used for comparison study of the blood hemodynamics in 30 extrahepatic obstructive juandice patients and 20 normal control.The diameter of portal vein and hepatic artery,the Vmax,Vmin,Vmean and RI of the hepatic and renal artery were all measured.Results:No difference of the portal diameter,the velocity,the blood volume were found between the two groups ( P >0 05).Hepatic artery diameter obviously expanded.Hepatic artery velocity and volume were statistically different( P <0 05).No difference of the hepatic artery RI between them found( P >0 05).Renal artery velocity,volume and RI had also no difference( P >0 05).Conclusion:extrahepatic obstructive juandice patients showed increased hepatic blood flow. No significant difference of the portal and renal blood volume between the patients and the normal groups.