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. 2021 Jan 27;34(4):631–642. doi: 10.1007/s10334-021-00907-2

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Comparison of FFT, iterative MB and iterative CPR approaches for strong (~ 1200 Hz) $B_{0}$ inhomogeneities in a grid phantom: 45 Equally spaced tubes filled with sunflower oil on a rectangular grid. Both MB and CPR result in images of which the structure is close to that of the true object. A photograph of the grid phantom is shown as a reference. Strong $B_{0}$ inhomogeneities were obtained by running a constant current through one of the gradient coils