Title :
A Finite Difference Method for Solving the Three-Dimensional EEG Forward Problem
Author :
Jing, Li ; Zhu, Shanan ; He, Bin
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou
Abstract :
A finite difference method (FDM) has been implemented to solve the electroencephalogram (EEG) forward problem. This method has been evaluated by means of computer simulations, by comparing with analytic solutions in a three-sphere concentric head model. The effects of dipole eccentricity, spacing of finite difference model and number of grid nodes on solution accuracy are also addressed in the simulations. The simulation results suggest that the FDM can achieve satisfactory forward solution due to a dipole source
Keywords :
brain models; electroencephalography; finite difference methods; dipole eccentricity; electroencephalogram; finite difference method; grid nodes; three-dimensional EEG forward problem; three-sphere concentric head model; Biomedical engineering; Boundary conditions; Brain modeling; Conductivity; Differential equations; Electroencephalography; Finite difference methods; Poisson equations; Scalp; Sparse matrices; Electroencephalogram; Finite difference method; Forward problem;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616727
