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. 2022 Oct 22;22:365. doi: 10.1186/s12893-022-01814-6

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© The Author(s) 2022

Open AccessThis 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. 2 — Measurement methods for mean CT Hounsfield Unit (HU) values: a 41-year-old male patient was diagnosed with a vertebral fracture in L1. A The mean CT Hounsfield Unit (HU) values of the T12 vertebral body (VB) were 176, and the right and left pedicles (excluding the cortical bone) were 133 and 136 respectively; B the mean HU values of the right and left pedicles of the L1 (fractured vertebra) were 157 and 144 respectively; C the mean HU values of the L2 VB was 164, and the right and left pedicle were 160 and 147 respectively. The mean HU values of the patient was 152.1 = [(176 + 133 + 136 + 157 + 144 + 164 + 160 + 147)/8]