Liu Hua, Cao Hui, Wu Zhi-Yong
Department of General Surgery, Renji Hospital, Shanghai Second Medical University, Shanghai 200127, China.
Hepatobiliary Pancreat Dis Int. 2005 May;4(2):239-43.
In recent years, MR techniques have been widely used for displaying hepatic vessels and measuring its hemodynamics, especially in the management of the patients with portal hypertension. The aim of this study was to evaluate the role of magnetic resonance angiography (MRA) in the treatment of patients with portal hypertension.
A series of 38 patients with portal hypertension and 12 control patients were enrolled in this study. Three dimensional dynamic contrast-enhanced (3D-DCE) MRA and two dimensional phase-contrast (2D-PC) MR were used for the study of portal venous anatomy and its hemodynamics, which were compared with those of indirect portal-venography (IPVG) and doppler ultrasonography (DUS).
The anatomical imaging of the portal venous system could be displayed clearly in 3D-DCE MRA and the imaging quality of MRA was better than that of IPVG. The hemodynamic information from 2D-PC MR was closely related to that from DUS.
As a non-invasive technique, MRA can display the anatomy of the portal venous system clearly and measure its hemodynamics exactly. It is very useful and can be applied if necessary in the management of patients with portal hypertension.
近年来，磁共振（MR）技术已广泛用于显示肝血管并测量其血流动力学，尤其是在门静脉高压患者的管理中。本研究的目的是评估磁共振血管造影（MRA）在门静脉高压患者治疗中的作用。
本研究纳入了38例门静脉高压患者和12例对照患者。采用三维动态对比增强（3D-DCE）MRA和二维相位对比（2D-PC）MR研究门静脉解剖结构及其血流动力学，并与间接门静脉造影（IPVG）和多普勒超声（DUS）进行比较。
3D-DCE MRA能够清晰显示门静脉系统的解剖图像，且MRA的成像质量优于IPVG。2D-PC MR获得的血流动力学信息与DUS密切相关。
作为一种非侵入性技术，MRA能够清晰显示门静脉系统的解剖结构并准确测量其血流动力学。它非常有用，在门静脉高压患者的管理中如有必要可应用。
