Epilepsy. June 2011.

Color illustration showing an epileptic network. Regions of the brain affected by reoccuring seizures. Regions labeled with colors and a color key is in the upper left corner.

Illustration showing an epileptic network. These are regions of the brain that may be involved during reoccurring epileptic seizures.

Color illustration of brain with surgical options shown as color labels. Color key in the upper left corner.

An illustration showing surgical options for patients with reoccurring epileptic seizures. Focal resection surgery removes a portion of the brain responsible for the seizures.

A color illustration of brain showing locations for inserting sereotaxic depth electrodes for electroencephalograph (EEG) monitoring

This illustration shows the locations for placing stereotaxic depth electrodes for electroencephalograph (EEG) monitoring. The purpose of the electrodes is to monitor a patient during a seizure in hopes of identifying the epileptogenic zone, to better treat the patient.

Color illustration of brain with subdural electrodes on the surface for monitoring patient with epilepsy. Color key in upper left for electrodes.

This illustration shows a different method for monitoring a patient during a seizure. A grid of subdural electrodes is placed intracranially. The purpose of the electrodes is to monitor a patient during a seizure in hopes of identifying the epileptogenic zone, to better treat the patient.