Reference point | High-definition | Attenuation-weighted OSEM | High-definition − background | Attenuation-weighted OSEM − background | Beaulieu (8) |
tref (min) ± SEM | 5.8 ± 6.4 | −48 ± 17 | 11 ± 5 | −42 ± 22 | −14 |
SUVref ± SEM | 5.9 ± 1.7 | 3.2 ± 1.6 | 2.9 ± 1.2 | 0.67 ± 1.2 | 3.5 |
Reference points as necessary for reference point method. Time coordinate and SUV coordinate vary with different parameters for image reconstruction and methods of SUV calculation.