脑脂肪栓塞的CT和MRI诊断(附3例分析)  

The diagnosis of cerebral fat embolism by CT and MRI (analysis of 3 cases)

作　　者：党勇[1] 雷益[1] 李顶夫[1] 冯伟[1] 

机构地区：[1]深圳市第二人民医院放射科,广东518035

出　　处：《放射学实践》2004年第9期635-637,共3页Radiologic Practice

摘　　要：目的 :分析脑脂肪栓塞 (CFE)的CT和MRI表现 ,以提高对此病的早期诊断。方法 :对 3例CFE患者的临床及CT和MRI资料进行分析。结果 :3例CFE患者CT检查均为阴性 ,MRI示双侧额叶皮层下脑白质区、基底节、放射冠、半卵圆中心区多发散在点状异常信号影 ,1例T1WI表现为低信号 ,2例未见异常 ,3例T2 WI均表现为点状较高信号 ,DWI上 3例均有点状高信号。结论 :有近期骨折病史者 ,一旦出现神经系统症状 ,要想到CFE的可能 ,应早期行颅脑MRI检查 ,常规选择T1WI、T2 WI和DWI多种序列成像技术进行检查。Objective:To improve the early diagnosis of cerebral fat embolism (CFE) by analyzing the CT and MRI findings in CFE.Methods:The clinical manifestation and the CT and MRI findings of 3 cases with CFE were analyzed.The all three patients were male and the age ranged from 17 years old to 25 years old .Results:CT scans in three patients showed no abnormalities.MRI showed multiple lesions with abnormal signal intensity in subcortical white matter area of both frontal lobes,basal ganglion area,corona radiata and centrum semiovale in all three patients.Lesions showed low signal intensity on T 1WI in only one case,high signal intensity on T 2WI and DWI in all three cases.Conclusion:After trauma and fracture,once the patient shows CNS abnormality clinically,the diagnosis of CFE should be considered.It is necessary for them to undergo MRI examination early and the T 1WI,T 2WI and DWI should all be used routinely.

关 键 词：脑脂肪栓塞 CFE MRI 创伤 颅脑CT 脑水肿 

分 类 号：R445[医药卫生—影像医学与核医学]