颅脑外伤性迟发性出血的CT诊断

目的：用ＣＴ随访研究颅内迟发性血肿，方法：在２３２例颅脑外伤患者中行ＣＴ随访检查，结果：６１例发现有迟发性颅内出血，其中３８例为原血肿增大或出现新的血肿；８例为对冲伤血肿，１５例为脑挫伤与小量散在出血灶，结论：在外伤病例中，即使开初ＣＴ扫描为阴性者，如病人的临床表现有改变，如症状加重，意识丧失，抽搐等，应立即行ＣＴ复查，对ＣＴ随访的价值及迟发出血的机理也进行了讨论。

CT diagnosis of delayed traumatic intracranial bleeding in head injury

Purpose: Delayed traumatic intacranial bleeding was investigated by follow-up CT scan. Methods: Follow-upCT scan was performed in 232 patient with head injury. Results: The enlargement of initial bleeding foci and/or occurrence ofnew hematomas were found in 38 cases. Hematomas on the contralateral side of injury were showed in another & cases, contusionand sporatic small bleeding foci in 15. Conclusion: It is suggested that although the initial CT scan was normal, an immediaterepetition of CT examination is indicated whenever patients show deterioration of clinical symptoms and signs e. g. loss of consciousness, convulsion etc. The value of follow-up CT scan and pathogenesis of delayed bleeding were discussed.