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. 2019 Jul 12;9:61. doi: 10.1186/s13550-019-0526-5

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© The Author(s). 2019

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.

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Fig. 4 — Gallery of axial brain ¹⁸F-FDG PET images obtained with analog PET and a current reconstruction method using a 2-mm voxel size (n = 10) (upper row), with digital PET and either a comparable reconstruction method with 2-mm voxel size (n = 10) (middle row) or a high-resolution reconstruction method with 1-mm voxel size (n = 10) (lower row)