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. 2024 Mar 1;24:53. doi: 10.1186/s12880-024-01223-6

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© The Author(s) 2024

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/. 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. 4 — Stent apposition rates of different types of 4.0-mm-diameter stents following post-dilatation by a 5.0-mm high-pressure balloon. The lumen area at the proximal end of the stent (lumen area 1, LA1), the stent area (stent area 1, SA1), and the stent/lumen area rate [SLAR1 = (LA1-SA1)/LA1 × 100%] before post-dilatation were measured and calculated. Subsequently, the lumen area at the proximal end of the stent (lumen area 2, LA2), the stent area (stent area 2, SA2), and the stent/lumen area rate [SLAR2 = (LA2-SA2)/LA2 × 100%] post-dilatation were obtained. Following post-dilatation, the apposition rates of the XIENCE Xpedition, Helios, Firehawk, BuMA, and Excrossal stents were significantly improved, and their average apposition rates were 97.42%, 96.31%, 92.98%, 95.45, and 95.75%, respectively. However, the Nano Plus stent apposition rate was only 78.80% after high-pressure dilatation (P < 0.05, n = 3)