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Abstract #4348

Pulsatile Motion Suppression using Cine Fast Spin Echo and Non-Linear Image Reconstruction

Mari Elyse Boesen 1,2 , Jerome Yerly 2,3 , Robert Marc Lebel 2,4 , and Richard Frayne 2,5

1 Biomedical Engineering, University of Calgary, Calgary, AB, Canada, 2 Seaman Family MR Research Centre, Calgary, AB, Canada, 3 CardioVascular MR Research Center, Centre d'Imagerie BioMedicale, Lausanne, Switzerland, 4 Applied Sciences Laboratory, GE Healthcare, AB, Canada, 5 Radiology & Clinical Neuroscience, Hotchkiss Brain Institute, University of Calgary, AB, Canada

Brain pulsation with the cardiac cycle is a limiting factor in artifact-free high-resolution brain imaging. A non-uniformly sampled k -space with oversampled low frequency data reduced the effect of pulsatile motion. Further artifact reduction was achieved by retrospectively gating this non-uniformly sampled FSE data (cineFSE) and removing the components that demonstrated significant temporal variation.

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