Noninvasive investigation of the brain activity via electroencephalography (EEG) and magnetoencephalography (MEG) involves a typical inverse problem whose solution process requires an accurate and fast forward solver. We propose the Method of Fundamental Solutions (MFS) as a truly meshfree alternative to the Boundary Element Method (BEM) for solving the M/EEG forward problem. The solution of the forward problem is obtained, via the Method of Particular Solutions (MPS), by numerically solving a set of coupled boundary value problems for the 3D Laplace equation. Numerical accuracy and computational load are investigated for spherical geometries and comparisons with a state-of-the-art BEM solver shows that the proposed method is competitive.

Ala, G., Fasshauer, G.E., Francomano, E., Ganci, S., McCourt, M.J. (2014). An Improved Solver for the M/EEG Forward Problem. In The 16-th biennal IEEE Conference on Electromagnetic Field Computation - CEFC 2014. IEEE.

An Improved Solver for the M/EEG Forward Problem

ALA, Guido;FRANCOMANO, Elisa;GANCI, Salvatore;
2014-01-01

Abstract

Noninvasive investigation of the brain activity via electroencephalography (EEG) and magnetoencephalography (MEG) involves a typical inverse problem whose solution process requires an accurate and fast forward solver. We propose the Method of Fundamental Solutions (MFS) as a truly meshfree alternative to the Boundary Element Method (BEM) for solving the M/EEG forward problem. The solution of the forward problem is obtained, via the Method of Particular Solutions (MPS), by numerically solving a set of coupled boundary value problems for the 3D Laplace equation. Numerical accuracy and computational load are investigated for spherical geometries and comparisons with a state-of-the-art BEM solver shows that the proposed method is competitive.
Settore ING-IND/31 - Elettrotecnica
Settore MAT/08 - Analisi Numerica
26-mag-2014
The 16-th biennal IEEE Conference on Electromagnetic Field Computation - CEFC 2014
Annecy
25-28 maggio 2014
1-feb-2014
2014
00
Ala, G., Fasshauer, G.E., Francomano, E., Ganci, S., McCourt, M.J. (2014). An Improved Solver for the M/EEG Forward Problem. In The 16-th biennal IEEE Conference on Electromagnetic Field Computation - CEFC 2014. IEEE.
Proceedings (atti dei congressi)
Ala, G; Fasshauer, G E; Francomano, E; Ganci, S; McCourt, M J
File in questo prodotto:
File Dimensione Formato  
CEFC2014_Digest.pdf

accesso aperto

Dimensione 98.85 kB
Formato Adobe PDF
98.85 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/98293
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact