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More-sparkling: non-Cartesian trajectories with minimized off-resonance effects

August 2023 Chaithya Giliyar Radhakrishna, Guillaume Daval-Frérot, Aurélien Massire, et al. Proceedings of the 30th Annual Meeting of ISMRM · Conference abstract
#SPARKLING #Non-Cartesian Sampling #k-space Sampling #Field Inhomogeneity #Artifact Correction #off-resonance effects

Abstract

We augment the recently introduced SPARKLING algorithm and propose an improved mathematical formulation that takes the temporal dependence of the MR signal into account. This prevents the trajectories from sampling similar portions of k-space at different times, thereby reducing distortions and blurring induced by (B0 ) inhomogenieties. Overall, these trajectories present a smooth distribution over time in k-space and Minimized Off-Resonance Effects (MORE-SPARKLING), verified both retrospectively and prospectively with scans performed in vivo at 3T on a healthy volunteer.

Details

  • Type of work: Conference abstract
  • Venue: Proceedings of the 30th Annual Meeting of ISMRM
  • Published: 3 August 2023
  • Volume: 1611
  • DOI: 10.58530/2022/1611
  • Authors: Chaithya Giliyar Radhakrishna, Guillaume Daval-Frérot, Aurélien Massire, Boris Mailhe, Mariappan Nadar, Alexandre Vignaud, and Philippe Ciuciu
  • Cited by: 1 times (OpenAlex)
  • Data sources: ref.bib, OpenAlex

BibTeX

@inproceedings{chaithya2022more,
  title={More-sparkling: non-Cartesian trajectories with minimized off-resonance effects},
  author={Chaithya, GR and Daval-Fr{\'e}rot, Guillaume and Massire, Aur{\'e}lien and Mailhe, Boris and Nadar, Mariappan and Vignaud, Alexandre and Ciuciu, Philippe},
  booktitle={Proceedings of the 30th Annual Meeting of ISMRM},
  volume={1611},
  year={2022}
}