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. 2021 Feb 22;37(6):1947–1959. doi: 10.1007/s10554-021-02179-2

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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. 3 — Difference in regurgitant volume (RVol) by 2D-PISA and 3D-PISA methods according to eccentricity index. The differences in RVol (RVol by 3D-PISA–RVol by 2D-PISA) were more prominent in patients with asymmetric flow convergence region (eccentricity index ≥ 1.25). Values are expressed as median (interquartile range)