摘要
目的探讨低场MRI在细菌性肝脓肿诊断中的临床应用价值。方法回顾经手术病理或临床治疗证实的19例23个肝脓肿,分析低场MRI平扫及增强影像表现及病理基础。结果23个肝脓肿14个位于肝右叶,9个位于肝左叶。典型肝脓肿7个,表现环征或双靶征,病灶中心液化坏死,脓肿内小泡状积气或气液平面,病灶周围水肿。不典型肝脓肿16个,不同时期影像表现各异,表现为簇状征,蜂窝征,蜘蛛足征等。结论低场MRI能较好显示肝脓肿的病理过程中组织结构不同特征,能提高细菌性肝脓肿的诊断正确率。
Objective：To study the value of low field MRI in the diagnosis of bacterial abscess of liver. Methods：Of 19 patients,23 bacterial abscesses of liver which were proved by pathology or clinical follow-up,the MRI findings before and after Gd-DTPA enhancement were retrospectively analyzed. Results： The location of the 23 lesions were in right lobe （n= 14） and left lobe （n= 9）. Typical MR manifestations were seen in 7 lesions, presenting as ring sign,double-target sign,central liquified necrosis,air bubble or air-fluid level within the lesion and peri-lesional oedema. 16 lesions had atypical features, which varied according to different stages of the abscess, displayed as cluster sign, honeycomb sign, spider-feet sign etc. Conclusion：Various characteristic findings in different stages of bacterial abscess could be assessed by low field MRI,and the diagnostic accuracy could be improved.
出处
《放射学实践》
2007年第5期485-488,共4页
Radiologic Practice
关键词
磁共振成像
肝脓肿
诊断
Magnetic resonance imaging
Hepatic abscess
Diagnosis
