目的 研究64排CT在创伤性颅脑 损伤的诊断价值、预后判断方面的意义。 方法 回顾性分析200例颅脑损伤患者， 入院时行CT检查，如果结果为阴性，则 在1d内复查CT，再次阴性者第2-3d内第三 次检查，总结患者CT影像特点，根据CT影 像特点计分并分为轻、中、重三型，分析 不同损伤分型对预后的影响。结果 颅脑 损伤CT影像表现多种多样，存在硬膜外和 硬膜下出血、颅骨骨折、蛛网膜下腔出 血等，轻、中、重三型的死亡、重残、 中残人数差异较大，具有统计学意义， P＜0.05；经三次检查共有198例患者阳 性，特异度均达100%，刚入院时灵敏度为 69.5%(139/200)，1d内73.9%(51/69)， 2-3d为100%(18/18)。结论 CT对诊断颅脑 损伤优势明显，灵敏度和特异度均较高， CT结果与患者预后紧密相关，可指导临床 治疗，因此颅脑损伤首选CT。

Objective To analyze the clinical value of 64 slice CT in diagnosis and prognosis of craniocerebral injury. Methods A total of 200 patients with craniocerebral injury were analyzed retrospectively, all the patients accepted CT scan after the injury, and had CT review in 24 hours if the CT result was negative, and had CT review in 2 to 3 days if the CT result was negative again. Then summarized the characteristics of CT imaging, and divided them into the three types according to the characteristics of CT image scores, and analyzed the influence to the prognosis. Results There were various of manifestations, such as epidural hemorrhage, subdural hemorrhage, skull fracture, subarachnoid hemorrhage, etc. The number of deaths, severe disability, moderate disability had significance difference among the mild disability, moderate disability and severe disability, P＜0.05. A total of 198 cases of patients with positive CT result, the sensitivity and specificity were 100%, the sensitivity of the first CT scan was 69.5% (139/200), and the first CT review was 73.9% (51/69) , the second time CT review was 100% (18/18). Conclusion CT had obvious advantages in the diagnosis of craniocerebral injury because of the high sensitivity and specificity. And the CT results had close relationship with the prognosis, which could be the clinical guidance, and deserve to be the first choice for the craniocerebral injury patients.