磁共振胰胆管成像在诊断胰胆管疾病中的价值

The value of magnetic resonance cholangiopancreatography in the diagnosis of pancreaticobiliary duct disease

目的 :评价磁共振胰胆管成像 (MRCP)诊断阻塞性和扩张性胰胆管疾病的临床价值。方法 :采用西门子symphony 1.5T超导磁共振成像仪 ,对 72例胰胆管系统疾病患者和 2 0例正常对照组进行MRI和MRCP成像 ,其中病变组 2 2例进行Gd DTPA动态增强。分析图像 ,将诊断结果与手术病理和超声、CT等其它影像检查结果对照。结果 :MRCP能清晰显示正常胰胆管树的结构 ,能直观显示胰胆管扩张和梗阻的部位、形态、范围。检出率和定位率为 94.3 % ,定性率为 85 .7%。MRI图像能帮助定性诊断。结论 :MRCP是一种安全、有效的胰胆管系统影像检查方法 ,与MRI结合 。

Objective:To study the value of magnetic resonance cholangiopancreatography (MRCP) in the diagnosis and differentiation of benign from malignant causes of biliary stenosis and dilatation.Methods:MR studies in 72 patients with biliary diseases and 20 volunteers as controls were performed on a Siemens symhony 1.5 T superconductive MR imaging unit.They were performed conventional T 1 and T 2 weighted images as well as MRCP.Twenty two of them also were performed dynamic Gd DTPA enhanced MR imaging.The findings were compared to that of the pathology and US or CT.Results:MRCP depicted clearly the normal pancreaticobiliary duct and showed directly the position and morphology of the obstruction or dilatation of the pancreaticobiliary duct.The visualization rate of obstructive level was 94.3% and diagnostic rate of the nature of obstructive lesion was 85.7%.Conclusion:MRCP is an effective and safe method for diagnosing the pancreaticobiliary duct disease.MRCP together with conventional T 1 and T 2 weighted images can improve the accuracy of differentiation of benign from malignant causes of biliary dilatation.