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Abstract #0880

Reducing clustering of readout trajectories in non-Cartesian CINE MRI

Datta Singh Goolaub1,2 and Christopher Macgowan1,2
1Medical Biophysics, University of Toronto, Toronto, ON, Canada, 2Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada

In this study, we demonstrate a new non-Cartesian trajectory scheme to reduce clustering of trajectory arms during CINE reconstruction, while still allowing for real-time reconstructions. In this scheme, trajectory arms are incremented within temporal blocks and additional angles are played between blocks. These added angles are optimized to perturb trajectory coherence during CINE reconstruction, as demonstrated through simulations showing reduced clustering and improved CINE image quality.

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