Title :
Regional head conductivity estimation by the iterative sensitivity matrix method
Author :
Dong, Guoya ; Ge, Manling ; Zou, J. ; Gao, Shangkai ; Yan, Weili
Author_Institution :
Dept. of Electr. Eng., Hefei Univ. of Technol., Tianjin
Abstract :
In this paper, an iterative sensitivity matrix method is proposed to estimate the regional head tissue conductivity. The analytical solution of the electrical impedance tomography (EIT) forward problem is derived for a 2-D concentric circular model. The estimation is verified by a 2-D concentric circular model with 3 layers and a 3-D spherical model with 4 layers, the convergence can be obtained with less iteration number and computational time
Keywords :
bioelectric potentials; biological tissues; brain models; electric impedance imaging; electrical conductivity; iterative methods; 2-D concentric circular model; electrical impedance tomography; forward problem; iterative sensitivity matrix; regional head tissue conductivity estimation; Biomedical monitoring; Conductivity; Current; Electric variables measurement; Electroencephalography; Impedance; Iterative methods; Magnetic heads; Scalp; Tomography;
Conference_Titel :
Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-8710-4
DOI :
10.1109/CNE.2005.1419701
