孔祥泉 徐海波 彭振军 刘定西 梁波 肖学宏 于群 熊茵 董道玉 430022 武汉，同济医科大学附属协和医院放射科 中华放射学杂志 1999 0 33 10


    关键词：磁共振成像；门静脉；癌；肝细胞 期刊 zhfsxzz 0 消化系统放射学 fur -->


    

【摘要】 目的 评价门静脉(简称门脉)癌栓MRI和磁共振门脉造影(MRportography，MRP)的特征及诊断价值。方法 回顾性分析62例门脉癌栓形成的MRI和MRP表现，并与手术对照。结果 门脉主干癌栓24例，右支癌栓12例，左支癌栓9例，主干及右支均有癌栓9例，主干及左支均有癌栓4例，主干及左右支均有癌栓4例。MRI表现为门脉增粗，其内失去流空信号，代之以肝癌信号充填。增粗的门脉呈团块状、竹节状或鹿角状。MRP表现为高信号门脉突然梗阻中断，梗阻端呈火柴头状、杯口状及不规则形状，并有丰富的侧支血管形成。结论 MRI及MRP对门脉癌栓具有很高的敏感性和特异性，是诊断门静脉癌栓的重要方法。

The value of MRI and MRportography in diagnosis of the portal venous

KONG Xiangquan， XU Haibo， PENG Zhenjun， et al.

    Department of Radiology, Xiehe Hospital of Tongji Medical University, Wuhan 430022

【 Abstract 】 Objective To evaluate the characteristicand diagnostic value of portal tumor thrombi on MRI and MR portography (MRP). Methods The appearances of portal tumorthrombi in 62 cases were retrospectively analyzed on MRI and MRP. Results There were tumor thrombi of themain portal vein in 24 cases, right portal branch in 12 cases, left portal branch in 9cases, portal trunk with right portal branch in 9 cases, portal thrunk with left portalbranches in 4 cases, and tumor thrombi of portal trunk with left and right portal branchin 4 cases. MRI identified the enlarged portal vein without flow void signal, replaced byliver cancer signal intensity, and the enlarged interhepatic portal branches with “bamboo-like or staghorn” appearance. Also, MRPdemonstrated high signal intensity of portal vein ending abruptly, the truncated endlooked like match-head, tea-cup or irregular shape, accompanied by abundant collateralcirculation. Conclusions MRI and MRP have high sensitivity and specificity for thediagnosis of portal tumor thrombi, and they are important tools for evaluation of portaltumor thrombosis.

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