目的 探讨磁共振成像(MRI)和 彩色多普勒超声(CDUS)定位及定性诊断 胆道结石的临床价值。方法 回顾性分析 2017年6月-2018年6月在我院拟诊断胆道 结石的112例患者的临床资料，均在拟诊 胆道结石2～14d内完成MRI和CDUS检查。 以手术或内镜下逆行胰胆管造影术(ERCP) 为“金标准”，比较MRI和CDUS检查诊断 胆道结石的准确性(灵敏度、特异度、准 确率)。结果 MRI检查诊断胆道结石的灵 敏度和准确率均明显高于CDUS(P﹤0.05)， 特异度比较差异无统计学意义(P﹥0.05)； MRI检查对胆总管结石的诊断符合率高于 CDUS检查(P﹤0.05)，对胆囊、肝外结石、 肝内结石的诊断符合率比较，差异无统计 学意义(P﹥0.05)。结论 MRI和CDUS检查均 可用于胆道结石诊断，但MRI定性定位诊 断准确性更高。

Objective To investigate the clinical value of magnetic resonance imaging (MRI) and color Doppler ultrasound (CDUS) in the localization diagnosis and qualitative diagnosis of biliary calculi. Methods The clinical data of 112 patients who were diagnosed with biliary calculi in our hospital from June 2107 to June 2018 were retrospectively analyzed. And patients were given MRI and CDUS within 2~14 d of the proposed biliary calculi treatment. Surgical or endoscopic retrograde cholangiopancreatography (ERCP) was used as the gold standard to compare the accuracy (sensitivity, specificity and accuracy rate) of MRI and CDUS in the diagnosis of biliary calculi. Results The sensitivity and accuracy rate of MRI in the diagnosis of biliary calculi were significantly higher than those of CDUS (P<0.05), and there was no significant difference in specificity (P>0.05). The diagnostic coincidence rate of MRI for biliary calculi was higher than that of CDUS. (P<0.05), and there was not statistically significant difference in the diagnostic coincidence rate of gallbladder, extrahepatic calculi and intrahepatic calculi (P>0.05). Conclusion Both MRI and CDUS can be used for the diagnosis of biliary calculi, but MRI qualitative and localization diagnosis has high accuracy.