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. 2021 May 7;8:41. doi: 10.1186/s40658-021-00386-3

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© The Author(s) 2021

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Fig. 6 — Hoffman phantom measured uniformity for all reconstruction methods when using a ¹¹C and a ¹⁸F-solution. Note the best uniformity was obtained with FBP with a 15-mm filter