Title :
Anatomical localization of EEG dipole sources using MRI images
Author :
Rizzo, G. ; Bianchi, A.M. ; Origgi, D. ; Locatelli, T. ; Cerati, R. ; Gilardi, M.C. ; Comi, G. ; Scotti, G. ; Fazio, F. ; Cerutti, S.
Author_Institution :
Milan Univ., Italy
Abstract :
A method for the localization of dipoles evaluated by electrical evoked potentials (EEP) into a realistic head shape obtained by MRI is implemented. The EEP/MRI integration is achieved by fitting the reference sphere used during dipole calculation to the MRI volume. Results obtained from normal subjects after visual and somatosensory stimulation are presented.
Keywords :
biomedical NMR; electroencephalography; interpolation; medical image processing; somatosensory phenomena; visual evoked potentials; EEG dipole sources; EEP/MRI integration; MRI images; MRI volume; anatomical localization; dipole calculation; dipole localization; electrical evoked potentials; normal subjects; realistic head shape; reference sphere; somatosensory stimulation; visual stimulation; Delay; Electric potential; Electrodes; Electroencephalography; Head; Image sampling; Magnetic heads; Magnetic resonance imaging; Pixel; Protocols; Shape; Signal sampling;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.411891
