目的研究16排CT和1.5T磁共振 胰胆管成像在临床分组中诊断胆囊结石合 并肝外胆总管结石的临床价值。方法 将 80例胆囊结石合并肝外胆总管结石的患 者作为观察对象，采用16排CT检查(80例) 作为对照组，采用1.5T磁共振胰胆管成像 检查(80例)作为研究组，以手术结果为标 准，比较两组临床确诊情况。结果 手术 证实80例结石患者，对照组确诊60例，研 究组确诊75例，研究组确诊率高于对照 组，组间差异明显(P＜0.05)；研究组检 查直径在0.8cm以下的无胆总管扩张的结 石患者42例，对照组31例，研究组确诊率 高于对照组，组间差异显著(P＜0.05)。 结论 临床对胆囊结石合并肝外胆总管结 石的诊断中，1.5T磁共振胰胆管成像较16 排CT确诊率高，特别是在对直径相对低 于0.8cm、无胆总管扩张的结石诊断中， 1.5T磁共振胰胆管成像具有明显的优势。

Objective This Paper is to investigate clinical value on 16-sliced computed tomography (CT) and 1.5 T magnetic resonance cholangiopancreatography used in clinical grouping diagnosis on gallbladder stone combined with choledocholithiasis. Methods Eighty patients with gallbladder stone combined with cholangiopancreatography were selected as research candidates, patients undergoing 16-slice CT examination (80 patients) were divided into the control group, patients undergoing 1.5 T magnetic resonance cholangiopancreatography (80 patients) were selected into the research group, and surgical results serve as standard. Clinical diagnosis details of two groups of patients were compared. Results Eighty patients were surgically confirmed to suffer from calculus, 60 patients in the control group were diagnosed to suffer from such disease, and the value of such disease in the research group was 75, the accuracy rate on patients in the research group was higher than that of patients in the control group, the inter-group difference was significantly (P<0.05). xx patients suffering from the calculus with the diameter below 0.8cm were subject to choledochectasia, and that value in the control group was xx, the accuracy rate on patients in the research group was higher than that of patients in the control group, the inter-group difference was significantly (P<0.05). Conclusions The accuracy of 1.5 T magnetic resonance cholangiopancreatography is higher than that of 16-slice CT in clinical diagnosis of gallbladder stone combined with choledocholithiasis, and especially 1.5 T magnetic resonance cholangiopancreatography delivers obvious advantages in diagnosing the calculus free from choledochectasia with relative diameter less than 0.8cm.