Density Compensated Unrolled Networks For Non-Cartesian MRI Reconstruction

  title={Density Compensated Unrolled Networks For Non-Cartesian MRI Reconstruction},
  author={Zaccharie Ramzi and Philippe Ciuciu and Jean-Luc Starck},
  journal={2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI)},
Deep neural networks have recently been thoroughly investigated as a powerful tool for MRI reconstruction. There is a lack of research, however, regarding their use for a specific setting of MRI, namely non-Cartesian acquisitions. In this work, we introduce a novel kind of deep neural networks to tackle this problem, namely density compensated unrolled neural networks, which rely on Density Compensation to correct the uneven weighting of the k-space. We assess their efficiency on the publicly… Expand

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