A computer simulation system of the electric activity in brains

Author

Wu, Qing ; Wang, Lei ; Li, Ying ; He, Shijuan ; Yan, Weili

Author_Institution

Dept. of Comput. Sci., Hebei Univ.. of Technol., Tianjin, China

Volume

1

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

990

Abstract

Several aspects in the numerical analysis system of electroencephalography (EEG) are discussed in this paper. Based on improved vector flow snakes and dynamic template method, the boundaries of different region in MRI image are extracted. Using the boundary element method, forward computation of EEG is investigated and acceptable results are obtained. The paper also proposes a method based on LORETA-FOCUSS to estimate the current density inside the brain with high spatial resolution. From simulated experiments, it is turned out that the proposed techniques yield satisfactory results.

Keywords

bioelectric phenomena; biomedical MRI; boundary-elements methods; electroencephalography; feature extraction; medical image processing; mesh generation; EEG; LORETA-FOCUSS; MRI image; boundary element method; brains; current density; dynamic template; electric activity; electroencephalography; extraction; vector flow snakes; Boundary element methods; Brain modeling; Computational modeling; Computer simulation; Conductivity; Current density; Electroencephalography; Focusing; Head; Magnetic resonance imaging;

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.2003.1279934

Filename

1279934