Advanced Intrinsic Correction of System Delays for Radial Trajectories

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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