弥漫性轴索损伤的CT表现

目的　加深对弥漫性轴索损伤 (DAI)CT表现的认识 ,以助于临床早期正确诊断。方法　回顾性分析 56例DAI的临床及CT资料 ,其中男 44例 ,女 1 2例 ,车祸伤 43例 ,高处坠落伤 1 3例 ,全部病例均具有伤后立即原发性昏迷。结果　①脑实质出血灶 44例 ,呈斑点状 ,直径多小于 2cm ,主要位于胼胝体、脑干、基底节 -内囊区及皮髓质交界部。②蛛网膜下腔或 /和脑室出血 41例。③弥漫性水肿 9例。④合并硬膜外血肿 5例 ,硬膜下血肿 1 6例。结论　DAI的CT征象有其特点 ,对于临床早期正确诊断具有重要参考价值

CT Manifestations of Diffuse Axonal Injury:A Report of 56 Case s

Objective To make a further recongnizing of the manifestations of diffuse axonal injury (DAI)on CT images for the early accurate clinical diagnosis.Methods The CT image data and its correlated clinic features of 56 cases with diffuse axonal injury(44 male,12 female)were analyzed retrospectively.In this series,43 cases were caused by traffic accident,13 by falling from high place.Results 1. 44 cases had haemorrhage lesions(less than 2 cm in diameter)in brain parenchyma which were at the corticomedullary junction,corpus callosum,brain stem,basal ganglia,internal capsule.2. 41 cases had subarachnoid and/or intraventricular hemorrhage 3. 9 cases had acute generalized brain swelling 4. 5 cases were associated with epidural hematoma and 16 with subdural hematoma.Conclusion CT manifestation of DAI have some featrues,and can provide reliable evidence for accurate clinic diagnosis of DAI.