颅底骨折的CT诊断

CT diagnosis of skull base fracture

目的探讨颅底骨折的CT表现及诊断价值。方法回顾分析67例颅底骨折的CT影像资料并加以总结。结果颅底骨折主要表现为气窦积液66例(98.5%);颅内积气5例(7.5%);颅底骨折线23例(34.3%)。前两者是两个重要的间接征象,颅内积气中的张力性积气形态表现具有特殊性。结论CT扫描是诊断颅底骨折的有效方法。

Objective To discuss CT findings of skull base fracture.Methods CT imaging data of 67 patients with skull base fractures were analyzed retrospectively.Results On CT images of 67 patients with skull base fracture,the hydrops of air sinuses was found in 6 cases(98.5 %),pneumoencephalus in 5 (7 %,and fracture-line of skull base in 23 (34.3 %).Anterior both findings were important mediate signs of skull base fracture whereas the formal presentation of tension pneumatosis within pneumoencephalus was a characteristic finding for diagnosing skull base fracture.Conclusion CT scanning is an effective means in the diagnosis of skull base fracture.