颅脑外伤急诊CT检查"阴性"的病例分析(附51例报告)

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.

The Analysis of Craniocerebral Trauma with Negtive Results on Emergency CT (A Report of 51 Cases)

Objective To explore the causes of negtive results on emergency CT and prevent method in craniocerebral trauma.Methods 51 cases of craniocerebral trauma with negtive results on emergency CT were analyzed respectively during 2002 to 2004.Results The causes of negtive results on emergency CT in craniocerebral trauma were:the insufficient experience for technicians and doctors (12.8%);the atypical signs in early phase(48.6%);the delayed lesions after injury(16.2%) and the limitation of CT (24.2%).Conclusion CT technicians and doctors should be well trained primarily. Furthermore, CT images, clinical manifestations and other examinations should be combined with to obtain precise diagnosis. Finally, uncertaint cases should be examined again with CT or MRI.