Title :
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
fDate :
4/1/2007 12:00:00 AM
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);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.892286
