Title :
Influence of source separation and montage on ictal source localization
Author :
Koessler, L. ; Salido-Ruiz, R. ; Ranta, R. ; Louis-Dorr, V. ; Gavaret, M. ; Maillard, L.
Author_Institution :
Centre de Rech. en Autom. de Nancy, CRAN, Nancy-Univ., Nancy, France
fDate :
Aug. 31 2010-Sept. 4 2010
Abstract :
The aim of this paper is to evaluate the influence of the reference electrode (introduced to form an augmented average montage) and of the artifact elimination by blind source separation on the ictal electrical source imaging. We present here a preliminary study on one patient only. The results seem to indicate that the montage (and thus the reference handling method) has a limited but existent influence on the quality of the source localization. Artifact elimination highly improves this quality as well.
Keywords :
biomedical electrodes; blind source separation; electroencephalography; medical signal processing; BSS; EEG; blind source separation; common reference montage; ictal electrical source imaging; ictal source localization; reference electrode; Brain models; Electric potential; Electrodes; Electroencephalography; Scalp; Source separation; Adult; Algorithms; Artifacts; Brain; Electrodes; Electroencephalography; Epilepsy, Temporal Lobe; Female; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Models, Statistical; Phantoms, Imaging; Physics; Reproducibility of Results; Seizures;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5626321
