Proton magnetic spectroscopy agreed better with magnetic resonance image to lateralization of epileptogenic zone than with surface electroencephalography

Arquivos de Neuro-Psiquiatria

Ricardo Andre Amorim Leite¹  Maria Concepcion Garcia Otaduy¹  Gilson Edmar Goncalves E Silva¹  Maria Lucia Brito Ferreira¹  Maria De Fatima Vasco Aragao¹ 

关键词: extratemporal neocortical epilepsy;    magnetic resonance spectroscopy;    EEG;    epilepsias neocorticais extratemporais;    espectroscopia por ressonancia magnetica;    EEG;   

DOI  :  10.1590/0004-282X20130100

来源: SciELO

【 摘 要 】

Objective To analyze the agreement rate of proton magnetic spectroscopy with magnetic resonance image (MRI) and surface electroence-phalography (EEG) in extratemporal neocortical epilepsies. Methods A cross-sectional study, type series of cases included 33 patients, age range 13–59 years old, of both gender, presenting structural alteration identified by MRI (75.8%) or by neurophysiologic techniques (72.7%). The variables were alterations of N-acetyl-aspartate/choline, N-acetyl-aspartate/creatine, choline/creatine, and N-acetyl-aspartate/cho-line+creatine coefficient of asymmetry. Results Agreement rates of lateralization by coefficient of asymmetry of NAA/Cho, NAA/Cr, Co/Cr, and NAA/Cho+Cr with MRI, independent of alteration of surface EEG, were equal to 93.3, 57.9, 15.4, and 93.3%, respectively, modifying to 100, 33.3, 0, and 100%, in 16 patients, with lateralization agreement of MRI and surface EEG. Conclusion Proton magnetic spectroscopy agreed better with MRI to lateralization of epileptogenic zone than with surface EEG.

【 授权许可】

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