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. Author manuscript; available in PMC: 2024 Dec 4.
Published in final edited form as: Magn Reson Med. 2021 Feb 18;86(1):46–61. doi: 10.1002/mrm.28728

FIGURE 1.

FIGURE 1

A, Pulse sequence diagram for radial echo-planar spectroscopic imaging (REPSI) in which n t points are acquired during the readout train. A pair of adiabatic full passage (AFP) pulses are played after the first 90° excitation pulse to achieve volumetric localization of an axial slab. B, Nonuniform undersampling masks for a 2D Cartesian 32 × 32 k-space matrix with 21, 16, 11, and 8 ky-lines, corresponding to acceleration factors (AFs) of 1.5, 2.0, 3.0, and 4. C, Golden-angle radial undersampling distributions with 21, 16, 11, and 8 spokes, corresponding to AFs of 1.5, 2.0, 3.0, and 4.0