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. 2022 Oct 26;14(4):1184–1192. doi: 10.1177/21925682221136492

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© The Author(s) 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — (A) Measurements required for MCC and MSCC calculation. Di, Da, and Db measure the diameter of the spinal canal at the site of compression and at the normal site above and below, respectively; di, da, and db indicate the diameter of the spinal cord at the site of compression and at the normal site above and below respectively. (B) Measurements of the Total CSA of the MF + SCer muscles and extensor muscles group on axial T2-weighted image at the C5-C6 level. (C) The image shows the application of a signal threshold filter (ImageJ) to highlight the fat-free muscle are and obtain the FCSA muscle measurements.