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. 2021 Jul 19;23:91. doi: 10.1186/s12968-021-00788-3

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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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 9 — REACT-CMRA images in coronal view show a flow-related fat-water separation artifact in typical location, which is commonly observed in dual modified Dixon-based sequences. In the water-only image (A) a hypointense rimed artifact (arrow) is seen within the distal IVC. Fat-only images (B) show high signal in the same location, indicating a signal swapping (the signal of moving water appears in the fat images most likely due to phase shifts between the two echoes). In this case, the in- and out-of-phase images should also be reconstructed, because they usually show regular artifact-free signal, as shown in the presented out-of-phase image (C). Knowledge of the presented artifact is important, as it may mimic vena cava inferior or hepatic vein thrombosis