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. 2024 Dec 19;57(1):86–87. doi: 10.1055/a-2438-0202

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The Author(s). This article was originally published by Thieme in Endoscopy 2024; 56: E795–E796 as an open access article under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2 — Examples of measurements made using the virtual ruler for: a a round foreign body in an ex vivo pig stomach; b an early antral cancer; c a sigmoid colon polyp; d a laterally spreading polyp in the ascending colon.