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目的:分析脑内多发性硬化MRI表现特点,提高MRI对该病的诊断水平。方法:分析46例经临床证实的脑内多发性硬化MRI表现,对病灶的形态、分布、数目、大小、信号及强化进行分析。结果:脑内多发性硬化MRI特征性表现为双侧半卵圆中心、双侧脑室旁白质内、胼胝体及中脑不规则形多发病灶,其中侧脑室旁病灶长轴垂直于侧脑室,病变在急性或活动期有强化。结论:MRI是目前诊断脑内多发性硬化的最佳影像检查方法。
Objective: To analyze the MRI features of multiple sclerosis in the brain and to improve the diagnostic value of MRI in this disease. Methods: MRI findings of 46 patients with clinically proven multiple sclerosis were analyzed. Morphology, distribution, number, size, signal and enhancement of lesions were analyzed. Results: Multiple intracerebral MRI showed characteristic features of bilateral semi-oval center, bilateral periventricular white matter, corpus callosum and irregular midbrain multiple lesions, of which the long axis of the periventricular lesions perpendicular to the lateral ventricle, lesions in the Acute or active period has been strengthened. Conclusion: MRI is the best imaging method for the diagnosis of multiple sclerosis in the brain.