Practice question

Epileptic seizures result from abrupt, excessive, synchronous discharges of interconnected cortical neurons generating high-amplitude spike and sharp-wave complexes. Diagnostic preference focuses on capturing these transient electrical paroxysms with millisecond accuracy. Electroencephalography amplifies ongoing scalp potentials continuously, identifying interictal epileptiform discharges, ictal onset patterns and focal slowing without radiation or contrast. Computed tomography primarily excludes hemorrhage, MRI identifies hippocampal sclerosis or cortical dysplasia as structural cause, PET shows interictal hypometabolism, but only EEG directly displays real-time seizure electricity essential for syndrome classification.