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摘要目的评估CT和MRI鉴别胆管内乳头状瘤(IPNB)与管内乳头状生长(IPG)胆管癌(CC)的诊断效能。方法 2名阅片者独立回顾经病理证实的42例IPNB或IPG-CC病人的影像表现。IPNB的诊断标准为严格具备以下3个指定的影像特征:胆管局部扩张、扩张胆管内结节、结节沿胆管内壁生长,任何一条不符合上述标准的病灶均被归类为IPG-CC。计算IPNB定性的敏感度、特异度、阳性预测值及阴性预测
Abstract Objective To evaluate the diagnostic efficacy of CT and MRI in the differential diagnosis of intraductal papilloma (IPNB) and ductal papillary growth (IPG) cholangiocarcinoma (CC). Methods Two readers independently reviewed the imaging findings of 42 pathologically confirmed IPNB or IPG-CC patients. IPNB diagnostic criteria to strictly meet the following three designated imaging features: local expansion of the bile duct, the expansion of bile duct nodules, nodules grow along the bile duct wall, any one does not meet the above criteria were classified as IPG-CC lesions. The sensitivity, specificity, positive predictive value and negative predictive value of IPNB were calculated