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Memorias de investigación
Ponencias en congresos:
In-vivo estimation of the axonal radius in directionally heterogeneous tissues
Año:2008
Áreas de investigación
  • Industria electrónica
Datos
Descripción
Diffusion MRI is a powerful methodology for the measurement of the diffusional motion of water molecules in tissue. The most outstanding and promising applications of dMRI belong to the field of brain research and clinical practice (brain mapping, connectivity and tractography algorithms development, ischemia diagnosis, early evidences of pathologies such as schizophrenia and Alzheimer¿s disease...). Although its background lies on the random Brownian motion due to thermal energy, the underlying tissue microstructure yields anisotropic diffusion, so that this technique provides useful information about the tissue geometric organization and composition, which determines the scatter pattern of water particles in tissue, as it is well documented ([1-2]). Recent models have attempted to relate both the self¿diffusion of water molecules and the underlying white matter microstructural features, where the orientation of the axonal bundles is assumed to be known a priori. It limits the application field to ex¿vivo experiments. Here we approach an extension on a former model by including directional heterogeneity in the axonal distribution based on a spherical harmonic decomposition of the fibres orientation distribution function (ODF).
Internacional
Si
Nombre congreso
12th Congress of the European Federation of Neurological Societies
Tipo de participación
960
Lugar del congreso
Madrid
Revisores
Si
ISBN o ISSN
1351-5101
DOI
Fecha inicio congreso
23/08/2008
Fecha fin congreso
26/08/2008
Desde la página
299
Hasta la página
299
Título de las actas
European Journal of Neurology, vol. 15, suppl. 3
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: Saad Jbabdi (University of Oxford, UK)
  • Autor: Rosario Sance Garzón (UPM)
  • Autor: Maria Jesus Ledesma Carbayo (UPM)
  • Autor: Andres de Santos Lleo (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Centro o Instituto I+D+i: Centro de tecnología Biomédica CTB
  • Departamento: Ingeniería Electrónica
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