目的评价磁共振平均相对脑血容量(rCBVmean)鉴别胶质瘤复发与放射损伤的诊断准确性。材料与方法系统性检索2000年1月至2015年8月Pubmed、Embase和CBM数据库中发表的有关磁共振rCBVmean鉴别胶质瘤复发与放射性损伤的文献。对纳入的文献进行质量评价及数据提取，应用Stata13.0软件进行Meta分析。结果共纳入14篇符合标准的文献，包括378例患者，合并敏感性(SEN)、特异性(SPE)、阳性似然比(PLR)、阴性似然比(NLR)和诊断优势比(DOR)分别为0.87(95% CI：0.80~0.91),0.89(95% CI：0.81~0.94),7.6(95% CI：4.3~13.4),0.15(95%CI：0.10~0.23)和50(95%CI：22~117)。综合受试者工作特性曲线(SROC)下面积为0.93(95%CI：0.91~0.95)。结论磁共振rCBVmean在鉴别胶质瘤复发与放射性损伤中具有高的诊断准确性。%Objective: This Meta-analysis is to evaluate the diagnostic accuracy of rCBVmean of MRI in distinguishing glioma recurrence from radiation injury. Material and Methods: PubMed, Embase and Chinese Biomedical database were systematically searched for studies (from January 2000 to August 2015) that evaluated the rCBVmean of MRI in differential diagnosis of glioma recurrence from radiation injury. Data were extracted from eligible studies and these studies were performed quality assessment. The Meta–analysis was performed by Stata13.0. Results:Fourteen studies involving 378 patients were eligible, and included in our Meta–analysis. The pooled SEN, SPE, PLR, NLR and DOR were 0.87 (95% CI:0.80—0.91), 0.89 (95% CI: 0.81—0.94), 7.6 (95% CI: 4.3—13.4), 0.15 (95% CI:0.10—0.23) and 50 (95%CI:22—117), respectively. The area under the SROC was 0.93 (95% CI: 0.91—0.95). Conclusions: This Meta–analysis showed that the rCBVmean of MRI had good diagnostic accuracy in discriminating between glioma recurrence and radiation injury.
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