Cortical imaging of epileptiform activity by means of a realistic geometry head model

Author

Zhang, X. ; van Drongelen, W. ; Hecox, K. ; Towle, VL ; Frim, DM ; McGee, A. ; He, B.

Author_Institution

Dept. of Bioeng., Illinois Univ., Chicago, IL, USA

Volume

3

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

2091

Abstract

A cortical potential imaging technique (CPI) was used to estimate the cortical potentials from scalp EEG recordings in two pediatric epilepsy patients. The pre-operative interictal spikes for 2 patients were applied to CPI by using realistic geometry head models built from individual MRI data. The localized areas of activity were revealed by CPI, as confirmed by neurosurgical resections and subdural ECoG recordings. The present study suggests that CPI may become a useful alternative for noninvasive imaging of epileptiform activity from pre-operative EEG recordings.

Keywords

biomedical MRI; electroencephalography; inverse problems; paediatrics; physiological models; surgery; MRI data; cortical potential imaging; epileptiform activity; head model; interictal spikes; neurosurgical resections; pediatric epilepsy patients; scalp EEG recordings; subdural ECoG; Biomedical electrodes; Brain modeling; Electroencephalography; Epilepsy; Geometry; Magnetic heads; Magnetic resonance imaging; Scalp; Solid modeling; Surgery;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1280149

Filename

1280149