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MRI in Temporal Lobe Epilepsy: correlation between EEG, SPECT and clinical features Hideji UESUGI 1 , Teiichi ONUMA 1 , Hiroshi MATSUDA 2 , Shiro ISHIDA 1 1National Center Hospital for Mental, Nervous and Muscular Disorders, National Center of Neurology and Psychiatry 2Department of Radiology National Center Hospital for Mental, Nervous and Muscular Disorders Keyword: Temporal lobe epilepsy , MRI , SPECT , EEG , Laterality pp.175-180
Published Date 1996/2/15
DOI https://doi.org/10.11477/mf.1405904043
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 The relationship between MRI, SPECT, EEG and clinical features in temporal lobe epilepsy was investigated. Subjects were 162 patients (84 males, 78 females) whose average age was 38.1±12.1 years. SPECT was carried out in 45 patients.【Results】 (1) Abnormal MR images were obtained in 36% of the group without epileptic discharge, and in 42% of the group with temporal spikes. There was no correlation between epileptic discharge in EEG and MRI abnormality. The lateralities of epileptic discharge and MRI were in disagreement in 9 of 39 patients (23%), indicating that determining the epileptic focus from scalp EEG was difficult. There was no correlation between the basic activity in EEG and abnormality in MRI. (2) The rate of abnormal SPECT (89%) was higher than that of abnormal MRI (40%). (3) The rate of the group with ictal automatism (52%) was higher than that of the group without ictal automatism (35%). (4) The rate of abnormal MR images was high in the group with encephalitis (73%). (5) The rate was higher in the group with febrile convulsion (62%) than in the group without it (28%). The rate of the abnormal MR images was higher in the group with a seizure frequency of at least several mal/ month (48%) than in the group with a seizure frequency of less than several mal/year (29%).


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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