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. 2019 Jun 18;195(9):780–791. doi: 10.1007/s00066-019-01480-3

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© The Author(s) 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 3 — Statistical comparison of primary tumor volumes (gross tumor volume, GTV) delineated using visual method and fixed threshold method, obtained from computed tomography (CT), magnetic resonance (MRI) and 18-fluorine-labeled fluorodeoxyglucose positron emission tomography (PET) images. The graph shows the median, the average and the level of statistical significance p (asterisk) of obtained results. Min minimal value, Max maximal value, vis visual method of GTV delineation, PET_20%, PET_30%, PET_40%, PET_50% volumes covered by 20%, 30%, 40%, 50% threshold of SUV_max, respectively