脑脂肪栓塞的影像诊断  

Imaging diagnosis of cerebral fat embolism

作　　者：刘宁宁[1] 张敬[1] 张云亭[1] 

机构地区：[1]天津医科大学总医院放射科,天津300052

出　　处：《天津医科大学学报》2011年第4期539-541,545,共4页Journal of Tianjin Medical University

摘　　要：目的:探讨脑脂肪栓塞(CFE)的特征性影像学表现。方法:回顾性分析7例CFE患者的CT和MRI资料。结果:7例外伤后第1天颅脑CT检查均未发现病灶,1例伤后第4天颅脑CT检查显示脑内多发边界不清低密度灶。6例伤后第1天颅脑MRI检查显示脑内多发等T1、长T2信号病灶,于DWI上呈均一高信号。CFE病灶主要位于两侧半卵圆中心、基底节-丘脑区、两侧额、顶、枕叶皮层和皮层下区;病灶常多发,对称分布,呈细小点状或小片状,分布密集。结论:CFE的影像表现具有一定的特征性,结合病史可早期做出诊断。Objective： To evaluate the manifestations of cerebral fat embolism（ CFE ）on CT and MRI. Methods： Imaging data on CT and MRI of 7 cases with CFE were analysed retrospectively. Results： Brain CT scans of 7 cases showed no abnormalities in the first day after injuring, brain CT scan of 1 case showed multiple low density lesions with obscure boundary four days after injuring. Brain MRI scans of 6 cases found multiple equal T1 signal, high T2 signal, hyperintense signal on DWI one day after injuring. CFE lesions were in bilateral centrum ovale, basal ganglia-thalamus, frontal cortex, parietal cortex, occipital lobe cortex and subcortex; these lesions were multiple, symmetric and tiny patch or small flake, distribution intensive. Conclusion： The imaging information of CFE have certain specificity ,with the history it can be used to make the diagnosis early.

关 键 词：脑脂肪栓塞 CT MRI 骨折 

分 类 号：R445[医药卫生—影像医学与核医学]