Pubblicazioni

Autori:

Marigonda, Antonio; Orlandi, Giandomenico

Titolo:

A mathematical model for neuronal fibers

Anno:

2011

Tipologia prodotto:

Contributo in atti di convegno

Tipologia ANVUR:

Contributo in Atti di convegno

Lingua:

Inglese

Formato:

Elettronico

Nome rivista:

COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS

ISSN Rivista:

2038-0909

N° Volume:

2

Numero o Fascicolo:

1

Titolo del Convegno:

SIMAI/SEMA 2010

Luogo:

Cagliari, Italy

Periodo:

21 - 25 Giugno 2010

Parole chiave:

DSI images; tractography; optimal mass transportation

Breve descrizione dei contenuti:

Diffusion Magnetic Resonance Imaging (MRI) is a powerful non-invasively method producing images of biological tissues exploiting the water molecules diffusion into the living tissues under a magnetic field. This technique enhances the highly non–homogenous character of the diffusion medium, revealing underlying microstructure. Recently, this method has been widely applied to the study of the neuronal fibers in the brain white matter, and several methods have been proposed to reconstruct the fiber paths from such data (tractography). Among the others, we recall the Diffusion Spectrum Imaging (DSI) model, which describes the diffusion inside each voxel as a probability density function defined on a set of predefined directions inside the voxel. DSI is able to successfully describe more complex tissue configurations than other models, but lacks to consider the density of fibers going to make up a bundle trajectory among adjacent voxels, preventing any evaluation of the real physical dimension of neuronal fiber bundles. We describe here a new approach, based on ideas from mass transportation theory, that takes into account the whole information given by DSI in order to reconstruct the underlying water diffusion process, and recover the actual distribution of neuronal fibers.

Pagina Web:

http://openjournal.simai.eu/index.php/caim/article/view/363

Id prodotto:

64460

Handle IRIS:

11562/350409

depositato il:

27 dicembre 2011

ultima modifica:

1 novembre 2022

Citazione bibliografica:

Marigonda, Antonio; Orlandi, Giandomenico, A mathematical model for neuronal fibers in «COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS» vol. 2 n. 1 , Atti di "SIMAI/SEMA 2010" , Cagliari, Italy , 21 - 25 Giugno 2010 , 2011

Consulta la scheda completa presente nel repository istituzionale della Ricerca di Ateneo