In these cases, angiograms also demonstrate hypervascularity of the lesion. (5) Occlusion of portal system may affect contrast enhancement of both hepatic tumor and non-tumorous parenchyma.

• 4．多数肝癌之对比增强效用比正常肝组织明显，血管造影亦呈示其为血管丰富性。5．门静脉阻塞对肝肿瘤及正常肝组织之显影作用都有影响。