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EJNMMI Physics
Fig. 7 | EJNMMI Physics

Fig. 7

From: A 3D-printed anatomical pancreas and kidney phantom for optimizing SPECT/CT reconstruction settings in beta cell imaging using 111In-exendin

Fig. 7

Measured kidney-to-pancreas intensity ratios (as 1/pancreas-to-kidney ratio) in experiment 1 and 2. a Measured kidney-to-pancreas intensity ratio for Flash 3D and Hybrid Recon OSEM3D reconstructions in the first experiment. b Measured kidney-to-pancreas ratio for Hybrid Recon OSEM3D, MAP-MRP and MAP-smooth reconstructions in the second experiment. Both figures show the measured intensity ratios. The actual activity concentration ratio, based on the real activity concentrations in the 3D-printed organs, is depicted by the striped lines. c Recovery on the y-axis calculated as reconstructed counts/inserted activity (counts/ml)/(Bq/ml). OSEM ordered subset expected maximum, MAP maximum a posteriori, MRP median root prior

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