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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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