Focal interictal epileptiform discharges, 30-second epoch

EEG 30-second epoch, longitudinal bipolar montage. Arrow: Interictal one second burst of 3.5 Hz rhythmic spike and slow wave discharges, localized to T6 electrode based on the phase reversal of the discharges.

EEG: electroencephalography.

Graphic 104917 Version 2.0