TΗΕ SUPERIORΙTY OF TΗΕ MAGNETOENCEPHALOGRAM WΙTΗ RESPECT TO TΗΕ ELECTROENCEPHALOGRAM TO STUDY CHILDREN'S EPILEPSY
Abstract
Systematic studies of the Magnetoencephalogram (MEG) in pathological children subjects (mainly with focal epilepsies) showed that the MEG may evidence significant brain activities even if they are not present in the electroencephalogram (EEG). They also showed that the MEG has a considerably higher spatial resolution than the EEG. Α novel technique was introduced to get such a representation of the data that would enable the investigator to draw his conclusions mainly from inspecting the plots. This technique is characterized by an ISO Spectral Ampitude (ISO-SA) mapping of the scalp distribution of the specified spectral components or frequency bands of the MEG power spectrum. With the above method we were able to localize epileptiform foci in children with focal or general type of epilepsy this noninvasive technique without applying an eliciting stimulus.References
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