• Corpus ID: 204976955

High-Resolution, Respiratory-Resolved Coronary MRA Using a Phyllotaxis-Reordered Variable-Density 3D Cones Trajectory

  title={High-Resolution, Respiratory-Resolved Coronary MRA Using a Phyllotaxis-Reordered Variable-Density 3D Cones Trajectory},
  author={Srivathsan P. Koundinyan and Corey Allan Baron and Mario O. Malav{\'e} and Frank Ong and Nii Okai Addy and J. Cheng and Phillip C. Yang and Bob S. Hu and Dwight G. Nishimura},
  journal={arXiv: Medical Physics},
Purpose: To develop a respiratory-resolved motion-compensation method for free-breathing, high-resolution coronary magnetic resonance angiography using a 3D cones trajectory. Methods: To achieve respiratory-resolved 0.98 mm resolution images in a clinically relevant scan time, we undersample the imaging data with a variable-density 3D cones trajectory. For retrospective motion compensation, translational estimates from 3D image-based navigators (3D iNAVs) are used to bin the imaging data into… 

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