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Numerical TrACR-SENSE and -SPIRiT results across 5 subjects and the three trajectories. (a) Cost function (Eqs. 1 and 2) reduction as a percentage of the uncorrected (initial) cost. (b) Percentage increase in the normalized image gradient squared, versus no correction. Metrics for reconstructions using measured trajectories are also shown for the center-out radial and spiral cases.
