Modeling anisotropic undersampling of magnetic resonance angiographies and reconstruction of a high-resolution isotropic volume using half-quadratic regularization techniques

@article{Roullot2004ModelingAU,
  title={Modeling anisotropic undersampling of magnetic resonance angiographies and reconstruction of a high-resolution isotropic volume using half-quadratic regularization techniques},
  author={Elodie Roullot and Alain Herment and Isabelle Bloch and Alain De Cesare and Mila Nikolova and {\'E}lie Mousseaux},
  journal={Signal Processing},
  year={2004},
  volume={84},
  pages={743-762}
}
In this paper we address the problem of reconstructing a high resolution volumic image from several low resolution data sets. A solution to this problem is proposed in the particular framework of magnetic resonance angiography (MRA), where the resolution is limited by a trade-o5 between the spatial resolution and the acquisition time, both being proportional to the number of samples acquired in k-space. For this purpose only the meaningful spatial frequencies of the 3D k-space of the vessel are… CONTINUE READING
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