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目的研究颅脑外伤性迟发性脑内血肿的早期CT表现及诊断。方法搜集CT复查证实的外伤性迟发性脑内血肿36例,对其首次CT检查及复查的CT影像进行分析。结果36例迟发性脑内血肿首次CT检查主要异常表现包括:①局限性蛛网膜下腔出血28例;②限局性脑实质密度减低,灰白质分界不清21例;③局部脑占位效应19例;④硬膜下血肿10例。结论脑外伤后首次行CT检查,出现:局限性蛛网膜下腔出血,限局性脑实质密度减低,灰白质分界不清,局部脑占位效应,硬膜下血肿,提示此部位可能出现迟发性脑内血肿,应及时复查CT。
Objective To study the early CT findings and diagnosis of delayed traumatic intracerebral hematoma in patients with traumatic brain injury. Methods Thirty-six cases of traumatic delayed intracerebral hematoma confirmed by CT scan were collected and the CT images of their first CT examination and review were analyzed. Results The main abnormal CT findings of 36 patients with delayed intracerebral hematoma included: (1) 28 cases of localized subarachnoid hemorrhage; (2) decreased local parenchymal density, 21 cases of unclear demarcation of gray matter; (3) 19 cases; ④ subdural hematoma in 10 cases. Conclusions The first CT scan after traumatic brain injury shows limitations of subarachnoid hemorrhage, limited brain parenchyma density, unclear demarcation of gray matter, local brain mass effect and subdural hematoma, suggesting that this site may be delayed Sexual intracerebral hematoma, CT should be promptly reviewed.