超急性期大面积脑梗死首次CT平扫征象探讨  

A study on the signs of the first plain CT scan on super acute large area of cerebral infarction

作　　者：崔惠勤[1] 佘军红[1] 廖明壮[1] 黄智江 

机构地区：[1]广西医科大学第四附属医院,柳州545005 [2]广西柳州钢铁集团公司职工医院,柳州545002

出　　处：《广西医学》2005年第4期496-498,共3页Guangxi Medical Journal

基　　金：广西科学研究与技术开发计划资金资助项目(No:桂科攻 0235024-5);广西柳州市科学研究与技术开发计划资金资助项目(No:20020225);广西壮族自治区卫生厅医药卫生科研课题。

摘　　要：目的对超急性期脑梗死首次CT检查时间与CT征象出现率进行相关性研究,探讨其对诊断正确率的影响及临床应对措施.方法通过对临床追踪证实的63例超急性期脑梗死首次CT扫描时间按照发病后2 h之内、2～4 h、4～6 h分组,分别观察CT征象的变化及出现率.结果发病后6 h内不同时间段首次CT检查时间与低密度征、脑肿胀征的出现率密切相关,统计学差异有高度显著性,从发病时间到首次CT检查时间越长,CT征像越明显,出现率越高.结论脑梗死发病早期CT征象不明确时,在短时间内(发病后6 h内)复查CT,可以明显提高低密度征,脑肿胀征的阳性率,仍可以在溶栓治疗时间窗内提高超急性期脑梗死的早期诊断准确性,为临床提供可靠治疗依据.Objective To research the relations of timing and positive rate of the first CT scan and the effects on diagnosis accuracy together with clinical measures.Methods 63 cases with super acute cerebral infarction confirmed by clinical follow up, were included in the study. All the patients were ramdomized into three groups. One group took first CT within 2 hours after disease, another group took initial CT with 2～4 hours and the third group took CT within 4～6 hours. The CT signs were compared between each group.Results There was close relations between the time and low density and cerebral swelling positive rate within 6 hours after disease with significant difference. The longer the time to take initial CT the more obvious were the CT signs and much higher were the positive rates.Conclusion At early stage super acute cerebral infarction, if the CT signs are not obvious, taking another CT scan within 6 hours will improve the signs of low density and positive rate of swelling, which improves early diagnosis accuracy and supplys more reliable theory for treatment.

关 键 词：体层摄影术 X线 计算机 大面积 超急性期 脑梗死 

分 类 号：R743.33[医药卫生—神经病学与精神病学]