DWI在小脑转移瘤诊断中的价值

Value of Diffusion-weighted Imaging Diagnosis of Cerebellar Metastasis

目的利用磁共振(MRI)弥散加权成像(DWI),研究其在诊断小脑转移瘤中的应用价值。方法通过磁共振常规序列、弥散加权序列、增强序列成像检查,收集某院诊断小脑转移瘤患者91例。采用统计学软件,计算出DWI诊断小脑转移瘤的特异性、敏感性、准确性。结果观察DWI诊断小脑转移瘤的结果,与金标准病理结果对照,得出DWI诊断小脑转移肿瘤的敏感度为88.24%、特异性为82.50%、准确性为85.71%;分析DWI检查小脑转移瘤,以病理结果为参照,分析其一致性,其符合率达到0.857 1,Kappa指数是0.709。结论 DWI成像对小脑转移瘤的诊断,具有重要价值。

Objective To investigate the value of MRI diffusion-weighted imaging（ DWI） in the diagnosis of cerebellar metastases. Methods The data of 91 patients suspected with cerebellar metastases were collected,which underwent conventional MRI and DWI examinations. Statistical analysis software were performed for statistic analysis,and the specificity,sensitivity and accuracy of DWI in the diagnosis of cerebellar metastasis were calculated. Results Based on the analysis of DWI of cerebellar metastases and pathological findings,the diagnostic sensitivity is 88. 24%,specificity is 82. 50%,and accuracy is 85. 71%. According to the diagnostic criteria of DWI for cerebellar metastases,and pathology results with the consistency of analysis,the coincidence is 0. 8571,and Kappa index is 0. 709. Conclusion DWI is a potential method for the diagnosis of cerebellar metastasis.