Title :
Fast Cortical-Imaging Approach by Using BEM-LORETA Source Contracting Algorithm
Author :
Zou, J. ; Lee, J.B. ; Chang, S.H.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
Abstract :
A fast cortical-imaging approach is proposed to reconstruct the equivalent source distribution in a four-layer head model. The key idea is to calculate the coefficient matrix K used in LORETA analytically by extracting the cortex potential contribution from dipoles inside brain. Numerical examples have shown the computational time is reduced greatly
Keywords :
biomedical imaging; brain; image reconstruction; matrix algebra; coefficient matrix; computational time; dipoles; equivalent source distribution reconstruction; fast cortical-imaging approach; four-layer head; source contracting algorithm; Algorithm design and analysis; Brain modeling; Conductivity; Electroencephalography; Integral equations; Magnetic heads; Real time systems; Tomography;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632855
