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간질전문크리닉에서의 간질증후군의 진단 : 자기공명촬영의 역할

Other Titles
 Syndromic Diagnosis at the Epilepsy Clinic:Role of MRI 
Authors
 이병인 ; 허경 ; 윤평호 ; 김동익 ; 임성룡 ; 박선아 ; 김옥준 ; 김장성 
Citation
 Journal of Korean Epilepsy Society (대한간질학회지), Vol.5(1) : 22~32, 2001 
Journal Title
 Journal of Korean Epilepsy Society (대한간질학회지) 
ISSN
 1226-6965 
Issue Date
2001
Abstract
Purpose: To evaluate the application of MRI to the ILAE classification of epilepsies and epileptic syndromes in the setting of epilepsy clinic. Methods: We reviewed epilepsy registry forms, EEG, and MRI of 300 patients who were consecutively registered to the Yonsei Epilepsy Clinic. The algorhithm of syndromic classification consisted of 3 steps ; 1) clinical diagnosis based on the clinical informations described in the registry form, 2) clinical-EEG correlations, and 3) clinical-EEG-MRI correlations. The interictal epileptiform discharges (IEDs) in EEG were divided into focal, multilobar/multifocal, and generalized. MRI-lesions were divided into focal and non-focal (multilobar/multifocal, and diffuse) lesions. The clinical-EEG, EEG-MRI, and MRI-clinical correlations were categorized as concordant, not discordant, and discordant. Results: Among 300 patients evaluated, 249 patients were found to have epilepsies and both EEG and MRI. By clinical analysis, 190 of 249 patients were diagnosed as localization-related epilepsies (LRE), 24 patients were generalized epilepsies (GE), 34 patients were undetermined epilepsies (UDE), and one patient had alcohol related epilepsy. EEG revealed IEDs in 124 patients and altered the clinical diagnosis in 79 patients. MRI lesions were found in 106 patients with focal lesions in 65 patients and non-focal lesions in 41 patients. MRI lesions were found in 47 of 125 patients with negative EEG. Concordance rates of clinical-EEG, EEG-MRI, and MRI-clinical correlations in 54 patients with lobar epilepsies, who had positive EEG and MRI, were 39%, 54%, and 52%, respectively, and discordant rates were 17%, 11% and 7%, respectively. The complete concordance of all 3 correlations was found in only 33% of them. In 20 patients diagnosed as GE by clinical-EEG correlations, MRI lesions were found in only 3 patients and none of them changed the diagnostic categories due to MRI lesions. Conclusion: In lobar epilepsies, the sensitivity of MRI was quite comparable with EEG and the clinical-MRI correlation was superior to the clinical-EEG correlations. MRI provided additional and complimentary informations and should be incorporated to the ILAE-classification system as the category of ’lesional epilepsy’.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/142723
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Neurology
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
Yonsei Authors
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