PT - JOURNAL ARTICLE AU - Laster, D W AU - Penry, J K AU - Moody, D M AU - Ball, M R AU - Witcofski, R L AU - Riela, A R TI - Chronic seizure disorders: contribution of MR imaging when CT is normal. DP - 1985 Mar 01 TA - American Journal of Neuroradiology PG - 177--180 VI - 6 IP - 2 4099 - http://www.ajnr.org/content/6/2/177.short 4100 - http://www.ajnr.org/content/6/2/177.full SO - Am. J. Neuroradiol.1985 Mar 01; 6 AB - One hundred consecutive patients with complex partial seizures were studied by magnetic resonance (MR) imaging and computed tomography (CT). Thirty-four patients had seizures of more than 5 years' duration, yet neurologic examinations and previous pre- and postinfusion CT scans had been normal. MR imaging demonstrated surgical lesions of potentially therapeutic significance in four of these 34 patients. Two patients underwent surgery with removal of a thrombosed arteriovenous malformation and a glioma. Although CT has been found to detect structural abnormalities, its yield of therapeutically significant abnormalities has been low.