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. 2023 Oct 31;9(1):33–39. doi: 10.17996/anc.23-00178

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© The Japanese Society of Nuclear Cardiology 2023

This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license. https://creativecommons.org/licenses/by-nc-nd/4.0/

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graphic file with name anc-9-33-g002.jpg — Figure 2 Comparison of measured and reference value for various ¹³N dose.

The plots of measured and theoretical activity for each session were shown. X-axis indicated the theoretical activity estimated by the radioactive decay from the measured activity in the vial obtained by curie meter prior to PET scan. Y-axis indicated the measured radioactivity of the vial from the PET acquisitions. The plots apparently showed disagreement over the theoretical value of approximately 800 MBq, while they showed a good linearity the range below approximately 400 MBq.