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. 2024 Nov 18;14:28397. doi: 10.1038/s41598-024-78789-2

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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/.

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Fig. 5 — (a–e) Ratio of infarct core (IC), penumbra (PEN) and healthy area (HA) versus their healthy counterparts (IC*, PEN* and HA*) with respect to each individual spectral parameter. (a) iodine density; (b) MonoE 40 keV; (c) MonoE 70 keV; (d) MonoE 120 keV; (e) electron density. Statistical testing was done for the comparison between ratios for the infarct core (IC/IC*), the penumbra (PEN/PEN*) and the healthy area (HA/HA*). Boxes show the median with the range from the 25th percentile to the 75th percentile. Whiskers show the range from minimal to maximal values. ns not significant. *: p < 0.05; **: p < 0.005; ***: p < 0.0005; ****: p < 0.0001.