Precise Estimation of Brain Electrical Sources Using Anatomically Constrained Area Source (ACAS) Localization

Author

Im, Chang-Hwan ; Lee, Chany ; An, Kwang-Ok ; Jung, Hyun-Kyo ; Jung, Ki-Young ; Lee, Soo Yeol

Author_Institution

Yonsei Univ., Wonju

Volume

43

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1713

Lastpage

1716

Abstract

This paper proposes a new parametric source model to precisely estimate brain electrical source distribution from electroencephalogram (EEG) or magnetoencephalogram recordings. In the proposed approach, only four free parameters need to be evaluated for each anatomically constrained area source to express both spatial locations and extensions of brain electrical activities on cortical surface. The feasibility of the proposed model is verified through the applications to realistic EEG simulations and epilepsy patient´s data

Keywords

diseases; electroencephalography; magnetoencephalography; EEG simulation; anatomically constrained area source localization; brain electrical source distribution estimation; cortical surfaces; electroencephalogram; epilepsy patient data; magnetoencephalogram recordings; parametric source model; spatial locations; Biomedical engineering; Brain modeling; Cerebral cortex; Educational institutions; Electroencephalography; Epilepsy; Humans; Inverse problems; Nervous system; Spatiotemporal phenomena; Anatomically constrained area source (ACAS); electroencephalography (EEG); functional brain source imaging; magnetoencephalography (MEG);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.892286

Filename

4137746