Tokunaga Y, Kira R, Takemoto M, Gondo K, Ishioka H, Mihara F, Hara T
Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 812-8582, Fukuoka, Japan.
Brain Dev. 2000 Oct;22(7):451-3. doi: 10.1016/s0387-7604(00)00179-0.
A magnetic resonance imaging (MRI) study was performed for a 20-month-old girl with an influenza type A infection who presented acute encephalopathy. Conventional MRI performed 8 days after the onset of encephalopathy, including T1-weighted, T2-weighted, and fluid-attenuated inversion recovery imaging, revealed only vague lesions in the right frontal, temporal, and parietal lobes. In contrast, diffusion-weighted imaging (DWI) then demonstrated the lesions much more intensively. On the 26th day, the lesions previously observed on DWI had become less discernible. The hyperintensity observed on DWI might reflect cytotoxic edema. Thus, DWI may be useful for evaluation of acute influenzal encephalopathy/encephalitis.
对一名患有甲型流感感染并出现急性脑病的20个月大女孩进行了磁共振成像（MRI）研究。在脑病发作8天后进行的常规MRI，包括T1加权、T2加权和液体衰减反转恢复成像，仅显示右额叶、颞叶和顶叶有模糊病变。相比之下，扩散加权成像（DWI）则更清晰地显示了这些病变。在第26天，之前在DWI上观察到的病变变得不那么明显了。DWI上观察到的高信号可能反映了细胞毒性水肿。因此，DWI可能有助于评估急性流感性脑病/脑炎。
