GRAPPA operator for wider radial bands (GROWL) with optimally regularized self-calibration.

  title={GRAPPA operator for wider radial bands (GROWL) with optimally regularized self-calibration.},
  author={Wei Lin and Feng Huang and Y L Li and Arne Reykowski},
  journal={Magnetic resonance in medicine},
  volume={64 3},
A self-calibrated parallel imaging reconstruction method is proposed for azimuthally undersampled radial dataset. A generalized auto-calibrating partially parallel acquisition (GRAPPA) operator is used to widen each radial view into a band consisting of several parallel lines, followed by a standard regridding procedure. Self-calibration is achieved by regridding the central k-space region, where Nyquist criterion is satisfied, to a rotated Cartesian grid. During the calibration process, an… CONTINUE READING

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