Abstract #3737
Advanced Intrinsic Correction of System Delays for Radial Trajectories
Martin Krmer 1 and Jrgen R Reichenbach 1
1
Medical Physics Group, Institute of
Diagnostic and Interventional Radiology, Jena University
Hospital - Friedrich Schiller University Jena, Jena,
Germany
To perform correction of axis dependent system/gradient
delays for radial imaging we propose an improved
algorithm which works by iteratively optimizing the
recon-structed image until the local minima of a
calibration function is reached. The calibration
function is calculated from the reconstructed image
magnitude and thus uses the actually measured radial raw
data for correction, requiring no additional calibration
data to be acquired. We demonstrate the performance of
the algorithm for both phantom and in vivo measurements.
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