目的 研究CT与MRCP在诊断肝 外胆管结石中的价值。方法 选择2016 年7月至2018年1月我院收治的疑似肝 外胆管结石患者98例，均于术前进行腹 部CT和MRCP检查，且以手术结果为准， 比较CT和MRCP对肝外胆管结石诊断价 值。结果 共98例患者中有60例为肝外 胆管结石，7例为肝内胆管结石，31例 未见结石。CT对肝外胆管结石诊断灵敏 度、特异度和准确度分别为78.33%、 71.05%、75.51%，MRCP对肝外胆管结石 诊断灵敏度、特异度和准确度依次为 91.67%、81.58%、87.76%，CT对肝外胆 管结石诊断灵敏度和准确度均显著低于 MRCP(P<0.05)。结论 CT与MRCP对肝外胆 管结石诊断均有较高价值，其中MRCP对 肝外胆管结石诊断灵敏度和准确度较CT 高。

Objective To study the value of CT and MRCP in the diagnosis of extrahepatic cholangiolithiasis. Methods A total of 98 cases of patients who suspected of extrahepatic cholangiolithiasis treated in our hospital from July 2016 to January 2018 were selected, and all of them were given abdominal CT and MRCP before operation, and the operative results were taken as criteria to compare the diagnostic value of CT and MRCP in the diagnosis of extrahepatic cholangiolithiasis. Results Among the 98 cases of patients, there were 60 cases of Choledocholithiasis, 7 cases of intrahepatic bile duct stones and 31 cases without stones. The sensitivity, specificity and accuracy in the diagnosis of extrahepatic bile duct stones were 78.33%, 71.05% and 75.51% respectively by CT, and were 91.67%, 81.58% and 87.76% respectively by MRCP. The diagnostic sensitivity and accuracy of CT for extrahepatic bile duct stones were significantly lower than those of MRCP (P<0.05). Conclusion Both of CT and MRCP have high value in the diagnosis of extrahepatic cholangiolithiasis. And MRCP has higher sensitivity and accuracy than CT.