门静脉高压症诊治中磁共振血管成像与间接门静脉造影和多普勒超声对照研究

目的:将磁共振血管造影术(MRA)与间接门静脉造影术(IPVG)和多普勒超声检查(DUS)对门静脉系统解剖影像学及血流动力学的检查结果进行比较,探讨MRA在门静脉高压症诊治中的应用价值。方法:于38例肝硬化门静脉高压症病人和12例非肝硬化病人对照组进行3D-DCEMRA和2D-PCMR检查,检测门静脉系统解剖的显像和血流量,分别与IPVG和DUS的结果进行比较。结果:MRA能很好显示门静脉系统的各属支,成像结果优于IPVG。对门静脉系统各血管流速、流量的测定与DUS有良好的相关性。结论:MRA能较好显示门静脉系统的解剖影像,并可测得血流动力学资料,可成为门静脉高压症血流动力学研究的首选方法。

Evaluation of MRA versus indirect portal venography,Doppler ultrasonography in the management of portal hypertension

Objective To assess the value of MRA in the management of portal hypertension by comparing the data obtained by MRA in portal venous anatomy and hemodynamics with those by indirect portal venography(IPVG) and Doppler ultrasonography(DUS). Methods Thirty-eight patients with portal hypertension and 12 patients without the disease were chosen in the study. Three dimensional dynamic contrast-enhanced (3D-DCE) MRA and two dimensional phase-contrast (2D-PC) MR were used for studying the portal venous anatomy and its hemodynamics. The results were compared with those obtained by IPVG and DUS. Results Anatomical imaging of the portal venous system was clearly demonstrated by 3D-DCE MRA. The data of hemodynamics displayed by 2D-PC MR were closely related to those obtained by DUS. Conclusions MRA as a non-invasive technique can demonstrate well the anatomy of the portal venous system and accurately display its hemodynamics. MRA is very useful in the diagnosis and treatment of portal hypertension.