Skip to main content

A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI.

Publication ,  Conference
Pisharady, PK; Sotiropoulos, SN; Sapiro, G; Lenglet, C
Published in: Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
September 2017

We propose a sparse Bayesian learning algorithm for improved estimation of white matter fiber parameters from compressed (under-sampled q-space) multi-shell diffusion MRI data. The multi-shell data is represented in a dictionary form using a non-monoexponential decay model of diffusion, based on continuous gamma distribution of diffusivities. The fiber volume fractions with predefined orientations, which are the unknown parameters, form the dictionary weights. These unknown parameters are estimated with a linear un-mixing framework, using a sparse Bayesian learning algorithm. A localized learning of hyperparameters at each voxel and for each possible fiber orientations improves the parameter estimation. Our experiments using synthetic data from the ISBI 2012 HARDI reconstruction challenge and in-vivo data from the Human Connectome Project demonstrate the improvements.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention

DOI

Publication Date

September 2017

Volume

10433

Start / End Page

602 / 610

Related Subject Headings

  • White Matter
  • Image Enhancement
  • Humans
  • Diffusion Magnetic Resonance Imaging
  • Brain
  • Bayes Theorem
  • Artificial Intelligence & Image Processing
  • Algorithms
  • 46 Information and computing sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Pisharady, P. K., Sotiropoulos, S. N., Sapiro, G., & Lenglet, C. (2017). A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention (Vol. 10433, pp. 602–610). https://doi.org/10.1007/978-3-319-66182-7_69
Pisharady, Pramod Kumar, Stamatios N. Sotiropoulos, Guillermo Sapiro, and Christophe Lenglet. “A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI.” In Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention, 10433:602–10, 2017. https://doi.org/10.1007/978-3-319-66182-7_69.
Pisharady PK, Sotiropoulos SN, Sapiro G, Lenglet C. A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI. In: Medical image computing and computer-assisted intervention : MICCAI . International Conference on Medical Image Computing and Computer-Assisted Intervention. 2017. p. 602–10.
Pisharady, Pramod Kumar, et al. “A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI.Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention, vol. 10433, 2017, pp. 602–10. Epmc, doi:10.1007/978-3-319-66182-7_69.
Pisharady PK, Sotiropoulos SN, Sapiro G, Lenglet C. A Sparse Bayesian Learning Algorithm for White Matter Parameter Estimation from Compressed Multi-shell Diffusion MRI. Medical image computing and computer-assisted intervention : MICCAI . International Conference on Medical Image Computing and Computer-Assisted Intervention. 2017. p. 602–610.

Published In

Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention

DOI

Publication Date

September 2017

Volume

10433

Start / End Page

602 / 610

Related Subject Headings

  • White Matter
  • Image Enhancement
  • Humans
  • Diffusion Magnetic Resonance Imaging
  • Brain
  • Bayes Theorem
  • Artificial Intelligence & Image Processing
  • Algorithms
  • 46 Information and computing sciences