目的 观察肝门部胆管癌患者的 MRI及CT影像表现及诊断价值。方法 回 顾性分析2013年3月-2015年2月我院肿瘤 外科收治的30例肝门部胆管癌患者临床 资料，对所有病例患者手术病理肝门部 胆管癌的MRI及CT影像学表现进行分析并 比较，探讨两种检测方法的诊断价值。 结果 MRI及CT平扫对病灶显示率分别为 100.00%、60.00%，而对肝门部胆管癌的 定位准确率分别为100.00%、90.00%；同 时30例肝门部胆管癌MRI及CT均表现为肝 内胆管不同程度扩张。结论 MRI及CT均 是肝门部胆管癌的有效诊断方法，而MRI 在显示肝门部胆管癌病灶位置、肿块大 小、范围、门静脉侵犯等方面较CT具有 更显著的优势，MRI对肝门部胆管癌有更 高诊断价值。

Objective To observe the imaging findings and diagnostic value of MRI and CT in patients with hilar cholangiocarcinoma. Methods The clinical data of 30 patients with hilar cholangiocarcinoma admitted in our hospital between March 2013 and February 2015 were retrospectively analyzed. The MRI and CT imaging findings of all patients with hilar cholangiocarcinoma were analyzed and compared. The diagnostic value of the two methods was explored. Results The display rates of MRI and CT for lesions were 100.00% and 60.00%, respectively, and the accuracy rates of the localization of hilar cholangiocarcinoma were 100.00% and 90.00% respectively. At the same time, MRI and CT of 30 patients with hilar cholangiocarcinoma all showed different levels of intrahepatic bile duct dilation. Conclusion Both of MRI and CT are effective methods in the diagnosis of hilar cholangiocarcinoma. However, MRI has more significant advantages over CT in displaying the sites of hilar bile duct tumors, size and scope of lumpand portal vein invasion, etc.. MRI has higher diagnostic value in hilar bile duct cancer.