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. 2016 Aug 26;16(1):26. doi: 10.1186/s40644-016-0086-0

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© The Author(s). 2016

Open AccessThis 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. 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.

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Fig. 2 — Typical PET images (SUV: 0–6) with a lesion of CNR (=3.17) and volume (1.66 ml) at the different count level (5 realizations are displayed). Each column represents one realization. The count level corresponding to each row is 0.048 × 10⁶, 0.16 × 10⁶, 0.32 × 10⁶, 0.48 × 10⁶, 1.6 × 10⁶, 3.2 × 10⁶, 6 × 10⁶, 1.2 × 10⁷, 2.4 × 10⁷, 4.8 × 10⁷