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. Author manuscript; available in PMC: 2022 Oct 14.
Published in final edited form as: Magn Reson Med. 2022 Apr 21;88(2):691–710. doi: 10.1002/mrm.29232

Figure 2.

Figure 2.

Low-rank approximations of the MaxGIRF higher-order encoding matrix are effective. NRMSEs are measured between full-rank image reconstructions and low-rank approximations from in vivo multi-slice spiral spin echo axial and sagittal datasets. NRMSEs when (A and D) only static off-resonance is included, (B and E) only concomitant fields are included, (C and F) both static off-resonance and concomitant fields are included in the higher-order encoding matrices. The inset images show the difference between full-rank (50/80 for axial/sagittal) and L-rank reconstructions. Note that a different range of the x-axis is used for clarity.