结节性硬化症的CT和磁共振成像诊断价值

目的评价cT及磁共振成像（MRI）检查对结节性硬化症的诊断价值。方法采用64排cT及1．5T磁共振扫描仪，回顾性分析18例结节性硬化症的颅脑cT及MRI表现。结果结节性硬化症的cT与MRI表现为室管膜下结节，脑皮质及皮质下病变，脑白质异常，室管膜下巨细胞星形细胞瘤。cT显示钙化结节敏感，而非钙化结节、皮质及白质病变的显示MRI比cT有显著优越性。MRI增强扫描室管膜下结节多呈轻中度强化。结论结节性硬化症的cT和MRI表现均具有一定特征性，cT和MRI在结节性硬化的诊断中具有十分重要的价值。

CT and MRI diagnostic value of tuberous sclerosis

Objective To analyze the value of CT and MRI in the diagnosis of tuberous sclerosis. Methods The 64 multi-deteotor helical CT and 1.5 T MR scanner were used in the examination. Retrospective analysis of the brain CT and MRI appearance in 18 patients with tuberous sclerosis. Results The main findings on CT and MRI were subependymal nodules, the lesions within cortical or sub-cortical matter, subependymal giant cell astrocytoma. CT was sensitive to calcificated nodules ,while MRI was more sensitive to the non-calcificated subependymal nodules, the cortical changes and the white matter changes. The MRI of subependymal noduli were enhanced slightly or mod erately. Conclusion There are characteristic findings of tuberous sclerosis on CT and MRI,and both of which play important roles in the diagnosis of tuberous sclerosis.