Shoji H, Murakami T, Murai I, Kida H, Sato Y, Kojima K, Abe T, Okudera T
First Department of Internal Medicine, Kurume University School of Medicine, Japan.
Neuroradiology. 1990;32(3):215-9. doi: 10.1007/BF00589115.
A follow-up study by CT and MRI in 3 cases of Japanese encephalitis (JE) was performed. Neurologically dementia, forced laughing, tetraplegia and parkinsonism were observed as sequelae. In the CT and MR scans about 3 years after the onset of JE, low-density areas (LDAs) or abnormal signal intensities had remained in the thalamus and basal ganglia. The abnormalities were also found in the brain stem. When the main lesions shown by CT and MRI were compared with those of the acute stage, T2-weighted MRI clearly revealed multiple small areas with high signal intensities, although those in the acute stage had shown diffuse abnormal signals. These findings may be useful in helping to identify JE a long time after the onset.
对3例日本脑炎（乙脑）患者进行了CT和MRI随访研究。观察到神经方面的后遗症有痴呆、强笑、四肢瘫痪和帕金森综合征。在乙脑发病约3年后的CT和MR扫描中，丘脑和基底神经节仍存在低密度区（LDAs）或异常信号强度。脑干也发现了异常。当将CT和MRI显示的主要病变与急性期病变进行比较时，T2加权MRI清楚地显示出多个高信号强度的小区域，尽管急性期显示的是弥漫性异常信号。这些发现可能有助于在发病很长时间后识别乙脑。
