Abstract #0932
3D Coronary MRA with 2D beat-to-beat translational and bin-to-bin affine respiratory motion correction using a golden radial image navigator
Andrew Peter Aitken 1 , Markus Henningsson 1 , Tobias Schaeffter 1 , and Claudia Prieto 1
1
Division of Imaging Sciences and Biomedical
Engineering, King's College London, London, London,
United Kingdom
Image navigators have been proposed as a way to improve
respiratory motion correction and to increase scan
efficiency in 3D coronary MR angiography. Existing
approaches allow for either translational motion
correction to be performed on a beat-to-beat basis or
for affine correction to be performed for several
respiratory bins. A new golden radial navigator is
proposed that allows both beat-to-beat translational and
bin-to-bin affine corrections to be performed by
combining navigator data from different respiratory
positions. With the proposed approach, images of
comparable quality to gated scans are achieved, with
affine correction showing further improvement over
translational correction only.
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