Paper Info
Title
Dipolar Source Localization From Intracerebral Seeg Recordings
Abstract
This paper aims at exploring the feasibility of a brain source localization method from intracerebral stereo-electroencephalography (SEEG) measurements. The SEEG setup consists in multi-contact electrodes inserted in the brain volume, each containing about 10 collinear measuring contacts. In clinical context, these signals are usually observed using a bipolar montage (potential differences between neighbouring contacts of a SEEG electrode). The propagation of distant activity is thus suppressed, resulting in the observation of local activities around the contacts. We propose in this paper to take benefit of the propagation information by considering the original SEEG recordings (common reference montage), with the objective to localize sources possibly distant from the electrode contacts, and whose activities are propagating through the volume. Our method is based on an equivalent dipole model for the source and homogeneous infinite models for the propagation environment. This simple approach shows satisfactory localization performance under appropriate conditions, described in this paper. The proposed method is validated on real SEEG signals for the localisation of an intra-cortical electrical stimulation (ICS) generator.
Year
DOI
Venue
2013
10.1109/EMBC.2013.6609432
2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Keywords
Field
DocType
EEG, Stereo-electroencephalography (SEEG), Equivalent Dipole Localization, Inverse problem, Intra-cortical electrical stimulations (ICS)
Computer science,Homogeneous,Electronic engineering,Stereoelectroencephalography,Source localization,Inverse problem,Dipole model,Electroencephalography,Dipole
Conference
Volume
ISSN
Citations 
2013
1557-170X
2
PageRank 
References 
Authors
0.39
6
5
Name
Order
Citations
PageRank
Vairis Caune120.39
Steven Le Cam220.39
Radu Ranta341.48
Louis Maillard49710.38
Valérie Louis-Dorr520.39