Effect of EEG electrode number on epileptic source localization in pediatric patients.

ABSTRACT:

Objective

To investigate the relationship between EEG source localization and the number of scalp EEG recording channels.

Methods

128 EEG channel recordings of 5 pediatric patients with medically intractable partial epilepsy were used to perform source localization of interictal spikes. The results were compared with surgical resection and intracranial recordings. Various electrode configurations were tested and a series of computer simulations based on a realistic head boundary element model were also performed in order to further validate the clinical findings.

Results

The improvement seen in source localization substantially decreases as the number of electrodes increases. This finding was evaluated using the surgical resection, intracranial recordings and computer

SUBMITTER: Sohrabpour A 

PROVIDER: S-EPMC4289666 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature