Pubblicazioni

A mathematical model for neuronal fibers  (2011)

Autori:
Antonio Marigonda; Giandomenico Orlandi
Titolo:
A mathematical model for neuronal fibers
Anno:
2011
Tipologia prodotto:
Contributo in atti di convegno
Tipologia ANVUR:
Contributo in Atti di convegno
Nazioni degli autori:
ITALIA
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 nonhomogenous 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:
2 novembre 2016
Citazione bibliografica:
Antonio Marigonda; Giandomenico Orlandi, A mathematical model for neuronal fibers in «COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS» vol. 2 n. 1Atti di "SIMAI/SEMA 2010" , Cagliari, Italy , 21 - 25 Giugno 2010 , 2011

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

Progetti Collegati
Titolo Dipartimento Responsabili
Applicazione della teoria del trasporto ottimo alla modellizzazione delle fibre nervose del cervello - Progetto Ricercatori di Recente Afferenza Dipartimento Informatica Antonio Marigonda
<<indietro

Attività

Strutture