Dense Array Electroencephalogram (EEG)

EEGThe dense array EEG is a crucial tool in the evaluation of epilepsy. Just as magnetic resonance imaging (MRI) and computed tomography (CT) allow a structural image of the brain, dense array EEG is a way to electrically image the brain.

The dense array EEG is an important tool for finding abnormal electrical activity in children who are candidates for epilepsy surgery, such as seizures.

The dense array EEG measures and records the brain’s electrical activity by using up to 256 electrodes. By placing this many electrodes at key points on the patient’s head, doctors are able to get a good approximation of where the child's seizures start.

The seizures can be seen by the changes in the normal pattern of the brain’s electrical activity.

Why Use a Dense Array EEG?

  • More complete coverage of the head
    The dense array EEG uses more electrodes and up to 256 channels, compared to the 19 to 21 channels used by traditional EEG systems. This provides better accuracy and localization at the source of the activity.
  • Quick application time
    Electrodes are arranged in a web-like structure, called the Geodesic Sensor Net. The electrodes can be applied in approximately 30 minutes.
  • Increased patient comfort
    The dense array EEG experience is virtually painless because there is no abrasion to the scalp.

For More Information

Call 404-785-2186 or 800-803-5437.