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

Analysis of multiple anisotropic acquisitions in 3D Magnetic Resonance Angiography: modeling and regularized reconstruction for improving the spatial resolution