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. 2023 Feb 9;13:2335. doi: 10.1038/s41598-023-28358-w

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© The Author(s) 2023

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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Geometric strain analysis. (A) Summary systolic strains (%) grouped by PVR status (PVR: dark gray bars; No-PVR: light gray bars). Data are reported as mean ± standard error. Systolic CS and LS are conventionally negative, but their absolute values are shown for simpler interpretation. Systolic strains that have significant associations with PVR status after accounting for sex, type of repair, time after repair, and BSA are denoted with symbols (*p < 0.05; **p < 0.01). (B) Univariate regression model between RV RS (%) and ED4 (black circles: PVR; black squares: No-PVR; red solid line: linear fit; red dotted lines: 95% confidence bounds; p < 0.01; r = 0.33). LV Left ventricular, RS Radial strain, RV Right ventricular.