Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1280149
