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. 2019 Dec 19;9:19423. doi: 10.1038/s41598-019-55792-6

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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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Tissue attenuation curves obtained from a CTP study processed with iMAR from a 58-year-old female after coiling of a ruptured left posterior communicating artery aneurysm. The arterial input function is represented by the red curve, the venous reference by the blue curve, and the tissue curves (left and right hemispheres), by the green curves. While comparing the curves from the corrected and uncorrected datasets, special attention was paid to the marked points (baseline, bolus arrival time (BAT), upward sloping, contrast maximum (C_max), and second passage peak).