A computational method for the covariance matrix associated with extracellular diffusivity on disordered models of cylindrical brain axons.
Math Biosci Eng
; 18(5): 4961-4970, 2021 06 07.
Article
em En
| MEDLINE
| ID: mdl-34517472
This study developed a method to approximate the covariance matrix associated with the simulation of water molecular diffusion inside the brain tissue. The computation implements the Discontinuous Galerkin method of the diffusion equation. A physically consistent numerical flux is applied to model the interaction between the axon walls and extracellular regions. This numerical flux yields an efficient GPU-CUDA implementation. We consider the two-dimensional case of high axon pack density, valid, for instance, in the brain's corpus callosum region.
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01-internacional
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MEDLINE
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Imagem de Difusão por Ressonância Magnética
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Revista:
Math Biosci Eng
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos