Characterization of the partial volume effect along the axial field-of-view of the Biograph Vision Quadra total-body PET/CT system for multiple isotopes

EJNMMI Physics

Table 1 Sphere-to-background ratios (SBRs) and activity concentrations (ACs) in the background for the respective phantom measurements

Sphere diameter [mm]	¹⁸F		⁶⁸ Ga		⁸⁹Zr
Sphere diameter [mm]	SBR	AC BG [kBq/ml]	SBR	AC BG [kBq/ml]	SBR	AC BG [kBq/ml]
7.86	7.7: 1	3.0	8.3: 1	3.0	7.5: 1	2.6
7.86	4.0: 1	3.0	8.3: 1	3.0	7.5: 1	2.6
28	8.1: 1	3.0	n. a.
37	8.1:1	3.0	n. a.