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. 2019 Dec 9;17(5):298–312. doi: 10.1038/s41569-019-0305-z

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© The Author(s) 2019

Open Access This 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. 5 — Prognostic and diagnostic outcome data are most available for the standard method of quantifying mitral regurgitation (MR) volume (MR_vol), which is left ventricular stroke volume (LVSV) minus aortic phase-contrast forward volume (AoPC). Other methods have particular advantages or disadvantages. In routine clinical practice, cross-checking between methods is recommended. FF+BF, forward flow plus backward flow; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; MVPC, mitral valve phase-contrast stroke volume; PaPC, pulmonary artery phase-contrast stroke volume; RVEDV, right ventricular end-diastolic volume; RVESV, right ventricular end-systolic volume; RVSV, right ventricular stroke volume.