Our EEG room.
The diagnosis of epilepsy relies on a combination of clinical history taking, EEG and brain imaging.
The clinical history is obtained during the initial encounter and includes a thorough review of seizures/events and known epilepsy risk factors, in addition to a neurological examination.
The EEG, or electroencephalogram, is the most important test in the evaluation of individuals presenting with possible seizures or events of unknown nature. The EEG is a non-invasive test that records the electrical activity of the brain. During the test, electrodes are temporarily attached to the scalp to measure the brain activity. The EEG is always performed with Video to help record movements and typical events. The gold standard for EEG testing is a longterm video-EEG study lasting for several days, in an outpatient or inpatient setting. This allows recording of different stages of wakefullness, drowsiness and sleep, and increasing the chances of capturing typical events or identifying abnormal brain waves.
Brain imaging is also performed in every individual suspected to have epilepsy. The gold standard test is a brain MRI, which is a noninvasive test looking in details at the structure of the brain. This allows the identification of brain lesions such as strokes or tumors.