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. 2021 Jul 5;379(2204):20200204. doi: 10.1098/rsta.2020.0204

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© 2021 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — The digital phantom used in the PET/CT computer simulation. (a) PET activity image in Bq/cc; (b) PET attenuation image at 511 keV in cm⁻¹; (c) X-ray CT image at 80 keV; (d) illustration of a liver ROI ‘L’ and a spine bone ROI ‘B’. (Online version in colour.)