薄层轴位T2WI脂肪抑制序列鉴别诊断壶腹周围病变  

Value of axial thin-slice T2-weighted sequences with fat suppression in the differential diagnosis of periampullary diseases

作　　者：郝粉娥[1] 牛硕[2] 韩晓东[3] 高阳[3] 张颖[3] 郭冬玲[3] 

机构地区：[1]内蒙古医学院附属医院CT室,内蒙古呼和浩特010050 [2]北京大学医学部,北京100083 [3]内蒙古医学院附属医院MRI室,内蒙古呼和浩特010050

出　　处：《中国医学影像技术》2009年第4期662-664,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨薄层轴位T2WI脂肪抑制序列对壶腹周围病变的鉴别诊断价值。方法顺序收集临床资料完整的壶腹周围病变95例,均行上腹部MR检查,同时对感兴趣区行薄层扫描。结果MRCP结合常规MRI对壶腹周围病变的诊断准确率为75.79%。薄层扫描可显示约2.5mm小结石和10mm的肿块,增加薄层扫描后准确率为92.63%,增加薄层扫描前后准确率之间差异有统计学意义。结论在常规扫描的基础上增加感兴趣区薄层扫描有助于壶腹周围小病变的鉴别诊断。Objective To assess the value of axial thin-slice T2-weighted sequences with fat suppression in differential diagnosis of the periampullary diseases. Methods A total of 95 patients with pathologically proved periampullary diseases underwent routine MR, MRCP and thin-slice scanning in the region of interest. Results The accuracy of the periampullary diseases was 75.79%with routine scan, whereas thin-slice T2WI could identify 2. 5 mm stone and 10 mm periampullary tumor with the accuracy of 92.63% （P〈0.01）. Conclusion Thin-slice MR scan is helpful in the differential diagnosis of small periampullary diseases.

关 键 词：壶腹周围癌 胰头肿瘤 磁共振胰胆管水成像 

分 类 号：R735.9[医药卫生—肿瘤] R445.2[医药卫生—临床医学]