Ontology highlight
ABSTRACT:
SUBMITTER: Ong F
PROVIDER: S-EPMC7285911 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Ong Frank F Uecker Martin M Lustig Michael M
IEEE transactions on medical imaging 20191119 5
We propose a k-space preconditioning formulation for accelerating the convergence of iterative Magnetic Resonance Imaging (MRI) reconstructions from non-uniformly sampled k-space data. Existing methods either use sampling density compensations which sacrifice reconstruction accuracy, or circulant preconditioners which increase per-iteration computation. Our approach overcomes both shortcomings. Concretely, we show that viewing the reconstruction problem in the dual formulation allows us to preco ...[more]