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Fig. 8 | EJNMMI Physics

Fig. 8

From: Analysis of a deep learning-based method for generation of SPECT projections based on a large Monte Carlo simulated dataset

Fig. 8

Analysis of physical phantom measurements. Left: Transversal slices of SPECT/CT reconstructions of the filled Jaszczak (top) and the NEMA phantom (bottom) using 120 projections. For the sake of clarity, only a section containing the two largest spheres are shown for the NEMA phantom. The missing projections for Recon 60 + 60 (magenta) and Recon 30 + 90 (green) were generated using u-nets U1 and U4–U6, respectively. The white numbers in the upper left panel are the signal-to-noise ratios calculated in the white boxes. For the Jaszczak phantom, the cross section of the activity distribution along the colored lines is shown on the right. For the NEMA phantom, the recovery of the spheres is shown on the right

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