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EJNMMI Physics
Fig. 5 | EJNMMI Physics

Fig. 5

From: Towards accurate 177Lu SPECT activity quantification and standardization using lesion-to-background voxel ratio

Fig. 5

CF values in cps/MBq versus sphere/lesion volume curves for SBVR values of 6 (blue curve), 14 (green curve) and 20 (red curve). The gray dashed line represents the maximum CF (4.87). The circle, square, triangle symbols show the know CF values for the 5.71, 11.49 and 26.52 cc spheres, respectively, from Fig. 4. The star symbol represents the CF value calculated from the transition factor TF (Eq. 3) for a sphere/lesion volume of 110 cc

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