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. 2020 Jul 3;20:43. doi: 10.1186/s40644-020-00323-0

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© The Author(s) 2020

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. 4 — MRI texture feature information measure of correlation 1 found to be a significant predictor of OS on univariable analysis. Kaplan-Meier curve for OS as a function of whether MRI information measure of correlation 1 was above (solid line) or below (dashed line) its median value of − 0.458 (a). 68-year old female with poorly differentiated ICC in segment 4 (AJCC stage 3) on T1-weighted post-contrast MR image obtained during portal venous phase (b, arrow) with an overlying information measure of correlation 1 texture map (d, arrow). This patient’s information measure of correlation 1 was calculated to be − 0.554 (scale − 1.0-0.0, blue-red), with corresponding OS of 1259 days. 63-year old male with moderately differentiated ICC in segment 4A/2 (AJCC stage 3) on T1-weighted post-contrast MR image obtained during portal venous phase (c, arrow) with an overlying information measure of correlation 1 texture map (c, arrow). This patient’s information measure of correlation 1 was calculated to be − 0.330 (scale − 1.0-0.0, blue-red), with corresponding OS of 658 days. Color scale bar is shown on the right