MRCP结合薄层T_2WI对胆系结石的诊断价值  

Value of MRCP combined with thin-sliced T_2WI in diagnosis of biliary calculi

作　　者：颜有霞[1] 陈小聪[1] 敖振杰[1] 张得旺[1] 李江涛[2] 

机构地区：[1]广东医学院附属厚街医院放射科,广东523962 [2]青海省人民医院放射科,西宁810007

出　　处：《影像诊断与介入放射学》2010年第5期283-285,共3页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨MRCP及薄层T_2WI脂肪抑制序列对胆系结石的诊断价值。方法对56例可疑胆系结石患者行常规上腹部MRI及MRCP,且对兴趣区行薄层T_2WI脂肪抑制序列扫描。与ERCP或手术结果对照,比较分析增加薄层扫描前后对胆系尤其是胆总管下段结石的诊断符合率。结果增加薄层扫描后对胆系结石的诊断率明显提高,常规MRCP与增加薄层扫描后诊断符合率分别为83.9%、96.4%。将不同部位结石进行合并,增加薄层扫描前后所得数据用配对卡方检验,两者有显著性差异(P<0.05)。结论在常规扫描的基础上加行兴趣区薄层扫描有助于小结石的直接显示,降低术中胆道损伤和术后残留结石的发生率。Objective To investigate the value of MRCP and thin-sliced fat-saturated T2WI for diagnosing biliary calculi. Methods MRI and MRCP were performed on 56 patients with suspected biliary calculi including thin-sliced fat-saturated T_,WI in the area of interest. Compared with ERCP or surgical findings, diagnostic accordance rates before and after thin-sliced fat-saturated T2WI were calculated. Re- suits The diagnostic accordance rate for biliary calculi was significantly higher （P〈0.05） after （96.4%） than before （83.9%） thin-sliced fat- saturated T2WI. Conclusion Thin-sliced fat-saturated T2WI depicts small biliary calculi and biliary tract malformation, thus reducing the incidence of biliary tract injury and residual calculi after surgery.

关 键 词：磁共振胰胆管水成像 内镜逆行胰胆管造影术 胆系结石 

分 类 号：R445.2[医药卫生—影像医学与核医学] R575.62[医药卫生—诊断学]