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Benchmarking common and advanced non-Cartesian trajectories with high acceleration and static off-resonance effects

August 2024 Guillaume Daval-Frérot, Chaithya Giliyar Radhakrishna, Fernanda Ponce, et al. ISMRM & ISMRT Annual Meeting & Exhibition · Conference abstract
#SPARKLING #Non-Cartesian Sampling #k-space Sampling #Field Inhomogeneity #Artifact Correction #MRI

Abstract

Non-Cartesian sampling patterns allow for highly accelerated MRI exams at the cost of exacerbated and more complex artifacts, each impacting image quality in unique ways. Patient-induced B0 field inhomogeneities can notably cause distortions and blurring, but some trajectories are by design more robust to them. We propose to retrospectively benchmark 16 different non-Cartesian sampling patterns with high acceleration factor (AF=20) and realistic off-resonance artifacts over 9 volumes acquired at 3T with 0.6 mm isotropic spatial resolution. SPARKLING and spiral-based trajectories achieve higher image quality scores, but only the former shows robustness to off-resonance effects through the MORE-SPARKLING extension.

Details

  • Type of work: Conference abstract
  • Venue: ISMRM & ISMRT Annual Meeting & Exhibition
  • Published: 14 August 2024
  • DOI: 10.58530/2023/0540
  • Authors: Guillaume Daval-Frérot, Chaithya Giliyar Radhakrishna, Fernanda Ponce, Aurélien Massire, Boris Mailhe, Mariappan Nadar, Alexandre Vignaud, and Philippe Ciuciu
  • Data sources: ref.bib, OpenAlex

BibTeX

@article{davalbenchmarking,
  title={Benchmarking common and advanced non-Cartesian trajectories with high acceleration and static off-resonance effects},
  author={Daval-Fr{\'e}rot, Guillaume and Chaithya, GR and Ponce, Fernanda and Massire, Aur{\'e}lien and Mailhe, Boris and Nadar, Mariappan and Vignaud, Alexandre and Ciuciu, Philippe}
}