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目的:分析多发性硬化CT,MRI表现并探讨其诊断价值。方法:回顾性分析32例多发性硬化患者CT,MRI影像资料。32例均行CT检查及MRI检查,20例行增强扫描。结果:CT及MRI均提示病变形态以圆形、卵圆形为主,大小不一,直径0.2~4.0 cm。CT表现为病灶呈等低密度或低密度影;MRI检查病灶以不均匀T1低T2高信号为主,FLAIR不均匀高信号改变,增强扫描病灶呈不均匀片样、斑片样、结节样及环样强化,在DWI序列病灶弥散系数值升高,磁共振波谱成像显示病灶区N-乙酰天门冬氨酸/肌酸比率下降,胆碱/肌酸比率及肌醇/肌酸比率升高。结论:MRI检查是诊断多发性硬化的重要方法。
Objective: To analyze the CT and MRI findings of multiple sclerosis and to explore its diagnostic value. Methods: The CT and MRI images of 32 patients with multiple sclerosis were retrospectively analyzed. Thirty-two patients underwent CT and MRI examinations and 20 patients underwent enhanced scan. Results: Both CT and MRI showed that the lesions were mainly round and oval in shape with different sizes and diameter of 0.2-4.0 cm. CT showed lesions were low density or low density; MRI lesion with uneven T1 low T2 high signal, FLAIR uneven high signal changes, enhanced scan lesions were uneven, patchy, nodular And ring-like enhancement. DWI increased the diffusivity of DWI lesions. Magnetic resonance spectroscopy showed decreased N-acetyl-aspartate / creatinine ratio, increased choline / creatine ratio and inositol / creatine ratio in the lesion . Conclusion: MRI is an important method to diagnose multiple sclerosis.