Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1279934
