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. 2019 Nov 21;9:17318. doi: 10.1038/s41598-019-53888-7

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© The Author(s) 2019

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Comparison of indices and segmented volumes after shunt surgery between patients with excellent outcome and those with good outcome. Asterisk (*) indicates statistically significant difference between the patients with excellent outcome (solid line) and those with good outcome (dotted line). Graph A shows the mean value of the relative changes in the following indices: Evans index (brown), z-Evans index (green), callosal angle (red), brain per ventricle ratio (BVR) at the anterior commissure (AC) level (purple) and BVR at the posterior commissure (PC) level (blue), and convexity subarachnoid space (SAS) per ventricle ratio (CVR; orange). Graph B show the mean value of the relative volume changes in the brain parenchyma (brown), total ventricles (red), and total subarachnoid space (SAS; blue). Graph C shows the mean value of the relative volume changes in the convexity part of SAS (blue), Sylvian fissure and basal cistern (red), and SAS in the posterior fossa (brown).