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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