手足口病性脑炎MRI表现  

Value of MRI on Hand-foot-Mouth Disease Encephalitis

作　　者：肖俊强[1] 程传虎[1] 黄旭东[1] 钟兰生[1] 

机构地区：[1]广东省惠州市第一人民医院放射科,516003

出　　处：《现代医用影像学》2012年第5期272-274,共3页Modern Medical Imageology

摘　　要：目的:探讨手足口病性脑炎MRI表现。材料与方法:回顾性分析85例经临床诊断且行MRI检查的手足口病性脑炎患者资料,分析其MRI信号改变、发病部位。结果:阳性病例27例中,桥脑和延髓均见累及。T1WI等偏低信号、T2WI/FLAIR稍高信号19例。T1WI明显低信号、T2WI高信号,FLAIR中央低信号、边缘稍高信号8例。DWI多呈等稍低信号,对应ADC图呈等稍高信号。GRE序列呈等稍高信号。增强均无强化。85例患者中77例痊愈出院,8例遗留下肢无力后遗症。结论:MRI有助于了解手足口病性脑炎脑内累及的范围,是评价颅脑损害非常有效的辅助手段。Purpose：To review the MRI findings in CNS involvement of hand-foot-mouth disease（HFMD）,emphasizing on the relationship of MRI findings.Materials and Methods：Clinical,MRI features of 85 cases of HFMD with clinical encephalitis were retrospectively studied,focusing on the MRI signal,lesions location and the prognosis.Results：Among 85 cases,27 cases had positive MRI findings.The major CNS lesions were in the medulla oblongata and pons.MR imaging studies of 19 patients showed mild hyperintensity on T2-weighted images and FLAIR images,and mild hypointensity on T1-weighted images.While 8 cases showed hyperintensity on T2-weighted images,hypointensity on T1-weighted images,and central hypointensity with ring hyperintensity on FLAIR images.77 patients were cured and showed no neurological symptoms,while 8 cases had neurologic sequela.Conclusion：MRI may be helpful for the detection of CNS lesions of HFMD.

关 键 词：手足口病 脑炎 磁共振成像 肠道病毒71型 

分 类 号：R725.1[医药卫生—儿科] R445.2[医药卫生—临床医学]