Authors
Christian Engwer, Johannes Vorwerk, Jakob Ludewig, Carsten H Wolters
Publication date
2017
Journal
SIAM Journal on Scientific Computing
Volume
39
Issue
1
Pages
B138-B164
Publisher
Society for Industrial and Applied Mathematics
Description
In order to perform electroencephalography (EEG) source reconstruction, i.e., to localize the sources underlying a measured EEG, the electric potential distribution at the electrodes generated by a dipolar current source in the brain has to be simulated, which is the so-called EEG forward problem. To solve it accurately, it is necessary to apply numerical methods that are able to take the individual geometry and conductivity distribution of the subject's head into account. In this context, the finite element (FE) method (FEM) has shown high numerical accuracy with the possibility to model complex geometries and conductive features, e.g., white matter conductivity anisotropy. In this article, we introduce and analyze the application of a discontinuous Galerkin (DG) method, an FEM that includes features of the finite volume framework, to the EEG forward problem. The DG-FEM approach fulfills the conservation property of …
Total citations
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Scholar articles
C Engwer, J Vorwerk, J Ludewig, CH Wolters - SIAM Journal on Scientific Computing, 2017