磁共振小肠造影诊断放射性肠炎的影像学特征  

Imaging features of magnetic resonance enterography in the diagnosis of radiation enteriti

作　　者：孟真[1] 谭好飞 刘伟丽 王俊超 丁伟[1] 李镇江 周锐志[2] MENG Zhen;TAN Haofei;LIU Weili;WANG Junchao;DING Wei;LI Zhenjiang;ZHOU Ruizhi(Interventional Operating Room,The Affilited Hospital of Qingdao University,Qingdao 266000,China;Department of Radiology,The Affilited Hospital of Qingdao University,Qingdao 266000,China)

机构地区：[1]青岛大学附属医院介入手术室,山东青岛266000 [2]青岛大学附属医院放射科,山东青岛266000

出　　处：《分子影像学杂志》2022年第6期838-841,共4页Journal of Molecular Imaging

基　　金：山东省医药卫生科技发展计划项目(2019WSA06087)。

摘　　要：目的分析磁共振小肠造影诊断放射性肠炎(RE)的影像学特征。方法回顾性分析2016年1月~2019年6月本院行妇科盆腔肿瘤放疗后疑似的RE患者108例磁共振小肠造影检查资料,以患者肠镜病理检查结果以及随访资料作为RE的诊断参考,总结RE在磁共振小肠造影中的影像学特点,分析磁共振小肠造影在诊断RE中的价值。结果所有患者后期均行肠镜检查,且接受随访复诊,根据检查结果及随访情况,确诊108例患者中共81例为RE,其27例排除RE。以最终诊断作为“金标准”,磁共振小肠造影在诊断RE中的敏感度及特异性分别为87.65%与74.07%。RE在磁共振小肠造影增强扫描及DWI扫描图像中有“同心圆”分层状高信号表现,肠壁呈强化信号,同时存在肠管周围改变以及肠壁增厚表现。结论RE在磁共振小肠造影中具有特殊的影像学表现,磁共振小肠造影可用于临床RE的诊断。Objective To investigate the imaging features of magnetic resonance enterography in the diagnosis of radiation enteritis(RE).Methods The imaging data of magnetic resonance enterography in 108 patients with suspected RE after gynecological pelvic tumor radiotherapy in our hospital from January 2016 to June 2019 were analyzed.We put the pathological examination results of patients'enteroscopy and follow-up data as the diagnosis reference of RE.The imaging characteristics of RE in magnetic resonance enterography was summarized.We analyzed the value of magnetic resonance enterography in diagnosing RE.Results All patients underwent colonoscopy in the later stage and were followed up.According to the examination results and follow-up,a total of 81 of 108 patients were diagnosed as RE,and 27 of them were excluded from RE.Taking the final diagnosis as the"gold standard",statistics showed that the sensitivity and specificity of magnetic resonance enterography in diagnosing RE were 87.65%and 74.07%.RE had"concentric circle"layered high signal performance in enhanced MR enterography and DWI scanning images.The intestinal wall showed enhanced signal,and there were changes around the intestinal tube and thickening of the intestinal wall.Conclusion RE has special imaging features in MR enterography,which can be used for clinical diagnosis of RE.

关 键 词：磁共振小肠造影 放射性肠炎 影像学特征 T2WI DWI序列 

分 类 号：R445.2[医药卫生—影像医学与核医学] R818.8[医药卫生—诊断学]