Abstract #2477
Influence of Anisotropic Blood Vessels Modeling in the EEG/MEG Forward Problem Using MRI.
Ernesto Cuartas-M 1 , Angel Torrado-C 2,3 , Juan A Hernandez-T 2,3 , Jos ngel Pineda 4 , Eva Manzanedo-S 2 , and German Castellanos-D 1
1
Universidad Nacional de Colombia, Manizales,
Caldas, Colombia,
2
Medical
Image Analysis and Biometry Lab, Rey Juan Carlos
University, Madrid, Spain,
3
Madrid-MIT
M+Vision Consortium, Madrid, Spain,
4
Centre
for Biomedical Technology-U.P.M, Pozuelo de Alarcn,
Spain
We analyzed the influence of neglect important tissue in
the EEG/MEG forward problem using an anisotropic finite
difference method. Specifically, we study the EEG/MEG
dipole source estimation in the presence of an
anisotropic blood vessels model. We used patient
specific head models MRI-based, together with DWI tensor
imaging to calculate anisotropic tensors in the white
matter. The results shows that neglect the anisotropic
blood vessels may induce significant errors in the
source estimation for deep brain areas. It could
potentially be an important drawback for source
localization in focal temporal epilepsy.
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