Publications

A mathematical model for neuronal fibers  (2011)

Authors:
Antonio Marigonda; Giandomenico Orlandi
Title:
A mathematical model for neuronal fibers
Year:
2011
Type of item:
Contributo in atti di convegno
Tipologia ANVUR:
Contributo in Atti di convegno
Nations of authors:
ITALIA
Language:
Inglese
Format:
Elettronico
Name of journal:
COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS
ISSN of journal:
2038-0909
N° Volume:
2
Number or Folder:
1
Congresso:
SIMAI/SEMA 2010
Place:
Cagliari, Italy
Period:
21 - 25 Giugno 2010
Keyword:
DSI images, tractography, optimal mass transportation
Short description of contents:
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.
Web page:
http://openjournal.simai.eu/index.php/caim/article/view/363
Product ID:
64460
Handle IRIS:
11562/350409
Deposited On:
December 27, 2011
Last Modified:
November 2, 2016
Bibliographic citation:
Antonio Marigonda; Giandomenico Orlandi, A mathematical model for neuronal fibers in «COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS» vol. 2 n. 1Proceedings of "SIMAI/SEMA 2010" , Cagliari, Italy , 21 - 25 Giugno 2010 , 2011

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Title Department Managers
Applicazione della teoria del trasporto ottimo alla modellizzazione delle fibre nervose del cervello - Progetto Ricercatori di Recente Afferenza Department Informatica Antonio Marigonda
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