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. 2023 Oct 26;25(3):383–395. doi: 10.1093/ehjci/jead280

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© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Test–retest reproducibility of AI measurements compared with manual measurements. Test–retest reproducibility presented as variance ratios with bootstrap CI for AI measurements compared with reference. The horizontal lines and numbers in parentheses represent 95% CI for superiority. The upper (right) ends of the horizontal lines represent 97.5% one-sided CI for non-inferiority. Upper panel: All 95% CI were below the variance ratio of 1.0, indicating superiority of AI compared with the inter-observer scenarios. Lower panel: The upper ends of the CI were between 1.0 and the prespecified margin of 1.46, indicating non-inferiority of AI compared with the intra-observer scenarios. Abbreviations: AI, artificial intelligence; EDV, end-diastolic volume; EF, ejection fraction; ESV, end-systolic volume.