MRI多种成像技术在胰腺肿块鉴别诊断中的价值

The Value of MR in the Diagnosis of Pancreatic Carcinoma and Pancreatic Inflammatory Mass

目的研究MRI多种成像技术在胰腺癌和胰腺炎性肿块鉴别诊断中的价值。方法搜集经手术病理证实的胰腺癌和胰腺炎性肿块病例共47例,采用的MRI技术分别为FLASHT1WI、TSET2WI、T1WI+FS、T2WI+FS、Gd DT PA动态增强扫描和MRCP,分析其MRI表现。结果T1WI、T2WI、T1WI+FS、T2WI+FS、Gd DTPA动态增强扫描以及MRCP对26例胰腺癌的检出率分别为53.9%、50.0%、73.1%、76.9%、88.5%、84.6%,对21例胰腺炎性肿块的检出率分别为52.4%、57.1%、71.4%、71.4%、81.0%、85.7%。结论T1WI+FS、T2WI+FS、Gd DTPA动态增强扫描和MRCP成像技术对胰腺癌和胰腺炎性肿块的定位、定性准确率较高,是鉴别诊断胰腺癌和胰腺炎性肿块的理想方法。

Objective:To study the diagnostic value of various techniques of MRI of pancreatic carcinoma and pancreatic inflammatory mass.Methods:MRI findings of pathologically proved pancreatic carcinoma (n=26) and pancreatic inflammatory mass (n=47) were analyzed retrospectively.FLASH T_1WI,TSE T_2WI,T_1WI+FS,T_2WI+FS,dynamic CE T_1WI and MRCP sequences were used.Results:The accuracy of T_1WI,T_2WI,T_1WI+FS,T_2WI+FS,dynamic CE T_1WI and MRCP for pancreatic carcinoma were 53.9%,50.0%,73.1%,76.9%,88.5%,84.6%respectively while the accuracy of T_1WI,T_2WI,T_1WI+FS,T_2WI+FS,dynamic CE and MRCP for inflammatory pancreatic mass were 52.4%,57.1%,~71.4%, 71.4%,81.0%,85.7% respectively.Conclusion:T_1WI+FS,T_2WI+FS,dynamic CE T_1WI and MRCP sequences have a high accuracy for the location and characterization of pancreatic cacinoma and pancreatic inflammatory mass.