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目的探讨颅脑外伤病例CT检查阴性的原因及防治办法。方法回顾性分析2002～2004年我院收治的颅脑外伤病例51例,急诊CT检查均为阴性,分析CT检查阴性的原因。结果造成CT检查阴性的原因分为:CT操作员与诊断医生经验不足12.8%;损伤早期征象不典型46.8%;迟发性病变16.2%;CT本身的局限性24.2%。结论首先要加强CT操作员技术培训;颅脑外伤的CT诊断应结合临床表现及其它检查结果综合分析;对怀疑有颅内损伤的病例给予复查或MR检查。
Objective To investigate the causes and prevention and cure of negative CT examination in cases of traumatic brain injury. Methods A retrospective analysis of 51 cases of craniocerebral trauma admitted to our hospital from 2002 to 2004 was conducted. The results of CT examination were negative and the causes of negative CT were analyzed. Results The causes of negative CT were classified as: CT operator and diagnostician experience less than 12.8%; early signs of injury atypical 46.8%; late-onset lesions 16.2%; CT limitations 24.2%. Conclusions First of all, technical training of CT operator should be strengthened. CT diagnosis of craniocerebral trauma should be combined with clinical manifestations and other test results comprehensively. Patients with suspected intracranial injury should be reviewed or MR examined.