Title :
A standard realistic head model for EEG dipole localization
Author :
Silva, C. ; Almeida, R. ; Foreid, J.P. ; Oostendorp, T. ; Ducla-Soares, E.
Author_Institution :
Fac. de Ciencias, Inst. de Biofisica e Engenharia Biomed., Lisboa, Portugal
fDate :
31 Oct-3 Nov 1996
Abstract :
The authors propose a standard realistic head model to process EEG data for neural source localization. This model is adapted in length, width and height to each patient´s head. The authors use simulated dipoles implanted in different brain regions (temporal, parietal, frontal, occipital) of six different patients in order to quantify the errors involved with this geometric approximation, which are on average 0.7 cm. When real clinical data from interictal spikes is used these errors are 0.5 cm. This approach is three times more accurate than using spherical models, doesn´t need MRI information and can be easily applied in routine EEG dipole localization
Keywords :
brain models; electroencephalography; medical signal processing; EEG data processing; EEG dipole localization; electrodiagnostics; errors quantification; frontal region; geometric approximation; interictal spikes; occipital region; parietal region; patients; routine EEG dipole localization; simulated dipoles; standard realistic head model; temporal region; Brain modeling; Electroencephalography; Geometry; Head; Magnetic resonance imaging; Medical tests; Scalp; Skull; Solid modeling; System testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.647567