MRCP结合薄层T_2WI对胆总管下段结石的诊断  

Thin-slice T_2-Weighted MRI in Combination with MR Cholangiopancreatography in the Diagnosis of Distal Bile Duct Cholelithiasis

作　　者：郝粉娥[1] 牛广明[1] 韩晓东[1] 高阳[1] 郭冬玲[1] 张颖[1] 

机构地区：[1]内蒙古医学院附属医院MRI室,呼和浩特010050

出　　处：《放射学实践》2009年第1期65-67,共3页Radiologic Practice

摘　　要：目的:探讨MRCP及薄层轴面T2WI脂肪抑制序列对胆总管下段结石的诊断价值。方法:对135例临床可疑胆总管结石患者施行上腹部磁共振检查(MRCP加常规MRI),且对感兴趣区行薄层T2WI脂肪抑制序列扫描。比较分析增加薄层扫描前后对胆总管下段结石的诊断符合率。结果:MRCP加常规MRI以及增加薄层扫描后诊断符合率分别为82.96%、96.30%,两者之间差异有统计学意义(P<0.01)。结论:在常规扫描的基础上增加感兴趣区薄层扫描有助于小病变直接征象的显示。Objective：To assess the value of MR cholangiopancreatography （MRCP） in combination with axial thinslice fat-suppressed T2- weighted MR sequences in the diagnosis of distal bile duct cholelithiasis. Methods： Upper abdomen of 135 cases with suspected distal bile duct cholelithiasis were examined by routine MRI and MRCP. At same time, thin slice fat-suppressed T2- weighted of the region of interest was performed. The diagnostic accuracy of these two approaches was compared and analyzed. Results; The diagnostic accuracy of distal bile duct cholelithiasis was 82.96 % by routine scan, while the accuracy of additional thin slice fat suppressed scan was increased to 96.30%. There was significant difference between the two （P〈0.01 ）. Conclusion：Thin slice fat suppression MR scan in region of interest can significantly improve the accuracy of diagnosis for distal bile duct cholelithiasis, and is helpful in assessing the direct imaging signs of small lesions in periampullary area.

关 键 词：胰胆管造影术 磁共振 磁共振成像 胆结石 

分 类 号：R575.7[医药卫生—消化系统] R445.2[医药卫生—内科学]