Fiber tracking in q-ball fields using regularized particle trajectories. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Information processing in medical imaging : proceedings of the ... conference. Année : 2005

Fiber tracking in q-ball fields using regularized particle trajectories.

Résumé

Most of the approaches dedicated to fiber tracking from diffusion-weighted MR data rely on a tensor model. However, the tensor model can only resolve a single fiber orientation within each imaging voxel. New emerging approaches have been proposed to obtain a better representation of the diffusion process occurring in fiber crossing. In this paper, we adapt a tracking algorithm to the q-ball representation, which results from a spherical Radon transform of high angular resolution data. This algorithm is based on a Monte-Carlo strategy, using regularized particle trajectories to sample the white matter geometry. The method is validated using a phantom of bundle crossing made up of haemodialysis fibers. The method is also applied to the detection of the auditory tract in three human subjects.

Domaines

Imagerie
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Dates et versions

hal-00349651 , version 1 (03-01-2009)

Identifiants

  • HAL Id : hal-00349651 , version 1
  • PUBMED : 17354684

Citer

M. Perrin, C. Poupon, Y. Cointepas, B. Rieul, N. Golestani, et al.. Fiber tracking in q-ball fields using regularized particle trajectories.. Information processing in medical imaging : proceedings of the .. conference., 2005, 19, pp.52-63. ⟨hal-00349651⟩
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