门静脉3D DCE MRA成像的价值与常规门静脉造影对照研究

与常规门静脉造影对照，评价门静脉三维动态态增磁共振血管成像（３－ｄｉｍｅｎｓｉｏｎａｌｄｙｎａｍｉｃｃｏｎｔｒａｓｔｅｎｈａｎｅｄＭＲＡ，３ＤＤＣＥＭＲＡ）显示门静脉开放性及侧支循环的能力。材料与方法：共有２０例患者做了门静脉ＤＤＣＥＭＲＡ成像，分析门静脉３ＤＤＣＥＭＲＡ上门脉主干，肝内门脉

Value of 3D DCE MRA in the Imaging of the Portal Vein: Correlated with Conventional Portography

Objective: To evaluate 3D DCE MRA in demonstrating of the patency and collaterals of the portal vein by comparing it with conventional portography. Materials and Methods: Twenty patients underwent 3D DCE MRA of the portal vein. The patency of the main portal vein, its right and left intrahepatic branches was examined. The distribution and extent of collaterals were assessed. The findings demonstrated on 3D DCE MRA were compared with those seen on conventional portography (percutaneous transhepatic portography or transarterial indirect portography). Results: Of 60 portal veins in 20 patients examined with both techniques, 57 had identical appearance in both 3D DCE MRA and conventional portography, with an agreement of 95%. The patency of the remaining 3 intrahepatic portal veins was discordant between two techniques. The presence and distribution of collaterals revealed by 3D DCE MRA was correlated exactly with portography, with 100% agreement between the two methods. Conclusion: 3D DCE MRA facilitates quite accurate determination of the portal venous patency and existence of varices, highly identical with conventional portography.