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. 2022 Dec 1;24:61. doi: 10.1186/s12968-022-00896-8

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© The Author(s) 2022

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. 3 — Differences in 4D flow right ventricular (RV) parameters according to RV remodelling; RV function; peak oxygen uptake (VO₂); and % predicted peak VO₂. RV direct flow (left), RV residual volume (middle) and RV peak E-wave KEi_EDV (right) are presented A among healthy controls, PAH with preserved RV remodelling (n = 24) and PAH with abnormal RV remodelling (n = 21); B among healthy controls, PAH with preserved RV function (n = 12), and PAH with reduced RV function (n = 33); C among healthy controls, PAH with preserved peak VO₂ (n = 10) and PAH with abnormal peak VO₂ (n = 35); D among healthy controls, PAH with preserved % predicted peak VO₂ (n = 10) and PAH with abnormal % predicted peak VO₂ (n = 35). *P < 0.05 compared with healthy controls; †P < 0.05 compared with PAH with preserved RV remodelling, and PAH with preserved RV function, respectively. Error bars denote median—25th percentile (lower) and 75th percentile—median (upper)