Interval Computed Tomography in Multiple Sclerosis

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Abstract
Computed tomography demonstrated areas of abnormal attenuation in the white matter in 14 patients with multiple sclerosis (MS). Nine were studied two or more times. Acute MS lesions exhibit decreased or normal attenuation without contrast enhancement and increased attenuation with it. On later scans these lesions show decreased attenuation with or without contrast material. Some lesions remain decreased in attenuation and some become normal both with and without contrast material.