The electrical properties of real head model based on electrical impedance tomography (EIT)

Author

Xu, Guizhi ; Yang, Qingxin ; Li, Ying ; Wu, Qing ; Yan, Wdi

Author_Institution

Dept. of Electr. Eng., Hebei Univ. of Technol., Tianjin, China

Volume

1

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

994

Abstract

The real head models have been reconstructed from the MRI head pictures, the electrical properties of them have been analyzed based on EIT using FEM method. The results show that surface potential distributions change with conductivity increase and reduce within head, and it is the biggest when the bone conductivity is changed. A basic acquisition EIT hardware system is designed which is used for studying the human head electrical property. These works are also the basis of head electrical conductivity reconstruction (inverse problem).

Keywords

bioelectric potentials; biomedical MRI; electric impedance imaging; image reconstruction; inverse problems; medical image processing; mesh generation; physiological models; tomography; EIT; FEM method; MRI head pictures; electrical impedance tomography; electrical properties; head electrical conductivity reconstruction; inverse problem; real head model; surface potential distributions; Brain modeling; Conductivity; Current density; Electrodes; Image reconstruction; Impedance; Magnetic heads; Magnetic resonance imaging; Tomography; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1279935

Filename

1279935