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

fYear

2010

fDate

Aug. 31 2010-Sept. 4 2010

Firstpage

2898

Lastpage

2901

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Conference_Location

Buenos Aires

ISSN

1557-170X

Print_ISBN

978-1-4244-4123-5

Type

conf

DOI

10.1109/IEMBS.2010.5626321

Filename

5626321