[Diagnosis of focal epilepsy using electroencephalographic brain mapping]

By means of the EEG brain mapping method we analyzed electroencephalograms of patients who presented focal abnormalities in standard EEG. A total of 15 patients with various epileptic manifestations was investigated. According to the etiology of the disease, they were divided into 3 groups: microfactor, stationary macrofactor, and non-stationary macrofactor. The brain mapping technique proved to be very useful as imaging method of focal abnormalities, useful for registering asymmetries in reaction to following of intermittent photostimulation. The method is especially suitable for storing findings and chronological comparison of findings during pharmacological therapy. The specificity of the method regarding the etiological factor and type of epileptic manifestation could not be verified in such a small number of patients.