Abstract #1534
Retrospective Reconstruction of Cardiac Cine Images from Golden-Ratio-Radial MRI using 1D Navigators
Martin Krmer 1 , Karl-Heinz Herrmann 1 , Judith Biermann 1 , and Jrgen R Reichenbach 1
1
Medical Physics Group, Institute of
Diagnostic and Interventional Radiology I, Jena
University Hospital - Friedrich Schiller University
Jena, Jena, TH, Germany
To perform cardiac cine imaging a single slice is
repeatedly acquired with radial readouts rotated by an
angle based on the golden ratio. Performing correlation
analysis between interspersed 1D navigator projections,
time points corresponding to the same cardiac motion
phases were automatically identified and used for
retrospective combination of radial readouts from
multiple data windows. Analysis of the 1D navigator data
provided a detailed correlation function revealing
cardiac motion over time. Imaging results were
comparable to images reconstructed based on a temporally
synchronized ECG showing low artifact level and good
image quality in terms of CNR.
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