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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Magn Reson Med. 2021 Jan 26;86(1):17–32. doi: 10.1002/mrm.28682

Figure 1.

Figure 1.

Examples of the 3D SPSP pulses and acquisition sequences used in the study. (a) The waveforms of the RF pulses (only the first channel plotted) and spiral gradients of the 3D SPSP pulses are shown. (b) The relationship between design parameters as described in the methods are depicted where a simulated spin echo frequency profile of an adiabatic parent pulse is shown. (c) The minimum pulse sequence for spectroscopy acquisition using the 3D SPSP pulse is shown, where water and lipid suppression are achieved by the inherent spectral selectivity of the 3D SPSP pulse. (d) A double spin echo variant of the sequence is shown with improved localization and the ability to rewind spatial phase variations introduced by the 3D SPSP pulse in high spectral bandwidth excitations.