摘要
目的 总结脑脂肪栓塞 (CFE)的临床及MRI及CT的影像特点。方法 分析 3例急性CFE的临床表现、影像特点。结果 (1) 3例均为长骨骨折 ,在外伤后或骨折固定、复位数小时后突发精神状态改变。 (2 )醒状昏迷是主要临床表现。 (3) 3例患者MRI能明确显示病灶 ,1例CT显示了病灶。 (4 )MRI、CT显示脑内病灶均呈基本对称性分布 ,为边缘模糊的点、片状长T1、长T2 信号 ,CT呈低密度。病灶均累及脑干、分水岭区脑白质、基底节区、胼胝体压部。 2例病灶累及小脑。 (5 ) 1例患者发病康复治疗 3个月后MRI复查示脑内病灶完全消失。结论 急性脑脂肪栓塞的临床及MRI、CT影像改变具有特征性 ,MRI在病灶显示上优于CT。
Objective To summarize the clinical characteristics and imaging features of cerebral fat embolism (CFE). Methods The clinical features and imaging appearances of 3 cases with acute CFE were analyzed. Results (1) 3 non-head injured cases had sudden mental status changes after leg injury. (2) The mail clinical manifestation was vigil coma. (3) MRI showed lesions of the brain in all 3 cases. Cranial CT showed lesions in only 1 case. (4) MRI and CT showed spotty and patchy symmetrical lesions, which were low signal on T 1WI and high signal on T 2WI, and low density on CT scan. The lesions were distributed in the white matter along the boundary zones of the major vascular territories, thalamus and basal ganglia, internal capsule, corpus callosum, brain stem, and cerebellum. The margins of the lesions were obscure. (5) 1 case received MRI examination after therapy for 3 months, which showed no lesions in the brain. Conclusion Cerebral fat embolism has its own clinical features and imaging characteristics. MRI is superior to CT in diagnosing CFE.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2003年第12期1121-1123,共3页
Chinese Journal of Radiology
关键词
脑脂肪栓塞
MRI检查
CT检查
诊断
影像学特点
Embolism, fat
Brain disease
Tomography, X-ray computed
Magnetic resonance imaging