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. 2022 Dec 7;50(4):1228–1239. doi: 10.1007/s00259-022-06068-1

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© The Author(s) 2022

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Biodistribution of [^99mTc]Tc-HFAPi in different vital organs over time. a % Injection Dose (ID)/organ of [^99mTc]Tc-HFAPi in heart, liver, lungs, kidneys, pancreas, spleen, brain, thyroid and salivary glands in different times. Data represent median ± interquartile range. b Example of background ROIs in patient #002 on planar scintigraphy images: whole body [^99mTc]Tc-HFAPi scintigraphy was performed at 10, 30, 90, 150 and 240 min post-injection