目的分析Rasmussen脑炎的MRI 影像特，评价MRI在Rasmussen脑炎的诊 断与预后评估中的应用价值。方法 收集 经临床病理证实为Rasmussen脑炎的患者 7例，对其进行横断面、矢状面及垂直于 海马长轴的斜冠状脉扫描，获取T1WI、 T2WI和FLAIR系列图像，分析MRI图像特 点，并与临床病理结果对照，探讨MRI 在Rasmussen脑炎诊断和预后评估中的价 值。结果 本研究中的7例患者，MRI影像 显示5例患者的患侧侧脑室体部扩大的， 6例患者的颞角扩大，6例患者的外侧裂 增宽，6例患者的局部脑沟增宽、脑回变 小，5例壳核、尾状核萎缩；7例患者灰质 区和白质区T2WI和FLAIR系列呈高信号， T1WI系列呈不均匀低信号；随着病变的进 展，MRI影像可见病变侧半球萎缩性改变 加重和范围扩大，皮层信号改变较大。结 论 Rasmussen脑炎患者的MRI影像具有一 定的特征性，可较为准确的检查出病变的 进展情况，在对该病的诊断及预后评估中 具有较高的应用价值。

Objective Analysis of Rasmussen encephalitis MRI imaging, to evaluate MRI in the diagnosis and prognosis evaluation of Rasmussen encephalitis application value. Methods Collection for Rasmussen encephalitis patients confirmed by clinical pathology in 7 cases, on the transverse, sagittal and vertical long axis of the cornu ammonis oblique coronary arteries and veins of scanning, T1WI, T2WI and FLAIR series of image, analyzing the characteristics of the MRI image, and contrast with the clinical pathologic results, to explore the value of MRI in Rasmussen encephalitis diagnosis and prognosis assessment. Results 7 patients in this study, MRI image showed 5 cases of lateral ventricles body expanded, temporal Angle of 6 patients, 6 patients with the lateral fissure broadening, 6 cases with local widened the sulci and gyri smaller, 5 cases of putamen and caudate nucleus atrophy; 7 cases of patients with gray and white matter T2WI and FLAIR series has high signal, T1WI series is uneven low signal; With the progress of the lesion, MRI image visible lesions hemisphere atrophic changes increase and expanded, cortex signal change is larger. Conclusion Rasmussen encephalitis patients MRI images have a certain characteristic, can more accurately detect the progress of disease, in the evaluation of the diagnosis and prognosis of the disease has a high application value.