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EJNMMI Physics
Fig. 1 | EJNMMI Physics

Fig. 1

From: Validation of the physiological background correction method for the suppression of the spill-in effect near highly radioactive regions in positron emission tomography

Fig. 1

The datasets used for this study: a simulation from XCAT2 phantom consisting of the bladder, three lesions (L1–L3) and one background lesion (B) placed at different distances (shown in brackets) from the bladder; b NEMA phantom consisting of a hot bottle at the centre, surrounded by six spheres (S1–S6) with diameters shown in brackets. The blue spheres (B1–B6) were used to estimate the background activity for the estimation of contrast-to-noise ratio (CNR); c patient data showing high activity in the spleen and liver

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