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编号:11026508
胆管癌的MRI诊断(附64例分析)
http://www.100md.com 《中华现代影像学杂志》 2006年第5期
胆管癌;磁共振成像;磁共振胰胆管成像;胆系梗阻,,胆管癌;磁共振成像;磁共振胰胆管成像;胆系梗阻,1资料与方法,2结果,3讨论,【参考文献】
     【摘要】 目的 探讨胆管癌的MRI诊断及鉴别诊断。方法 回顾性分析64例胆管癌患者的MRI表现,MR检查包括轴位SE T1WI、FSE序列T2WI、T2FS及磁共振胰胆管成像(MRCP),其中25例做增强扫描。全部病例均经手术清除和探查、病理证实。结果 本组病例肝内胆管癌4例,肝门部胆管癌44例,中下段胆管癌13例,壶腹部胆管癌3例。MRI对胆管癌定性准确率达96.8%,MRCP定位准确率达100%。结论 胆管癌在磁共振成像上有较特征性的表现,且能提供病变的准确部位,根据MRI表现较易做出诊断,胆总管末端壶腹部胆管癌须与其他低位梗阻性胆道疾病鉴别,认真分析MRI和MRCP原始图像及重建图像,进行综合分析后可做出正确诊断。

    【关键词】 胆管癌;磁共振成像;磁共振胰胆管成像;胆系梗阻

    MRI diagnosis of cholangiocarcinoma:analysis of 64 cases

    YU Ben-xia,LIU Feng-li,XIE Hai-zhu,et al.

    Imaging Center,The Affiliated Yantai Yuhuangding Hospital of Qingdao University Medical College,Yantai 264000,China

    【Abstract】 Objective To investigate the diagnosis and differential diagnosis of cholangiocarcinoma by MRI.Methods The MRI appearances of 64 cases of cholangiocarcinoma were analyzed retrospectively.The MRI sequences included transverse section of T1WI,T2WI,T2FS as well as MRCP.25 cases underwent contrast enhancement in addition.The diagnosis of all cases were confirmed by surgical operation and pathology.Results The group of cases comprised 4 types of lesions:intrahepatic type,4 cases;portal type,44 cases;middle-lower-level type,13 cases;ampulla type,3 cases.MRI had an accurate rate of 96.8% on the qualitative diagnosis,while MRCP had an accurate rate of 100% for the foci diagnosis.Conclusion The MRI appearances of cholangiocarcinoma are relatively characteristic.By means of MRI,the involvement of the lesion can be clearly demonstrated,and the diagnosis can be made easy.Tumor situated in the end tip of common bile duct should be differenciated with other lower-level obstructive bile duct diseases.Combined analysis of original and reformed pictures of MRI and MRCP can result in correct diagnosis. ......

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