Title :
A Study of white matter and skull inhomogeneous anisotropic tissue conductivities on EEG forward head modeling
Author :
Bashar, Md Rezaul ; Li, Yan ; Wen, Peng
Abstract :
The aim of this study is to investigate the effects of white matter (WM) and skull inhomogeneous anisotropic tissue conductivities on human head modeling. The inhomogeneity of WM and skull is included using fractional anisotropy (FA) method and the anisotropy is included according to volume constraint in the head model construction. A five-layered spherical head model implemented using finite element method (FEM) is used as a volume conductor with a known current source to measure the electroencephalogram (EEG) on the head surface. Statistical measurement techniques are applied to analyze the EEGs obtained from inhomogeneous anisotropic head models and a homogeneous isotropic model. This study finds that the effects of WM and skull inhomogeneous anisotropy on EEG are significant.
Keywords :
electroencephalography; finite element analysis; statistical analysis; electroencephalogram; electroencephalogram forward head modeling; finite element method; fractional anisotropy method; head model construction; homogeneous isotropic model; skull inhomogeneous anisotropic tissue conductivities; spherical head model; statistical measurement techniques; volume conductor; white matter; Anisotropic magnetoresistance; Brain modeling; Conductivity; Conductors; Current measurement; Electroencephalography; Finite element methods; Humans; Skull; Volume measurement; EEG; Fractional anisotropy; finite element method; forward problem; inhomogeneous anisotropic conductivity;
Conference_Titel :
Computer and Information Technology, 2008. ICCIT 2008. 11th International Conference on
Conference_Location :
Khulna
Print_ISBN :
978-1-4244-2135-0
Electronic_ISBN :
978-1-4244-2136-7
DOI :
10.1109/ICCITECHN.2008.4803103
