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Table 3 Deviations of SUVmax and SUVmean from reference SUV

From: The influence of different signal-to-background ratios on spatial resolution and F18-FDG-PET quantification using point spread function and time-of-flight reconstruction

 

ΔSUVmax (%)

ΔSUVmean (%) [tBC]

ΔSUVmean (%) [t50]

SBR1

   

 FBP

17.0 (14.7 to 19.5)***

-11.0 (-15.4 to -7.3)**

-8.2 (-12.7 to -5.0)*

 FBP + TOF

15.1 (12.8 to 17.2)**

-11.0 (-16.3 to -7.1)*

-8.3 (-13.5 to -5.0)*

 3D-OSEM

24.2 (21.1 to 27.2)***

-6.6 (-10.6 to -4.2)*

-4.1 (-8.1 to -0.9)

 3D-OSEM + TOF

20.2 (18.5 to 22.6)***

-6.6 (-9.7 to -4.5)*

-4.3 (-7.2 to -2.3)*

 PSF

31.9 (26.9 to 38.2)**

-0.6 (-2.4 to 3.1)

2.3 (0.5 to 6.6)

 PSF + TOF

32.9 (27.7 to 42.7)**

1.2 (-1.3 to 4.0)

3.9 (1.4 to 6.7)

SBR2

   

 FBP

20.4 (17.6 to 24.5)**

-7.6 (-11.7 to -4.4)*

-6.9 (-11.4 to -3.9)*

 FBP + TOF

18.5 (14.9 to 20.3)***

-8.0 (-12.8 to -4.8)*

-7.5 (-12.7 to -4.2)*

 3D-OSEM

28.5 (23.4 to 38.8)**

-3.6 (-6.0 to -0.7)

-2.5 (-4.7 to 1.0)

 3D-OSEM + TOF

24.8 (21.4 to 30.7)**

-4.1 (-6.6 to -2.0)*

-3.3 (-5.9 to -0.6)

 PSF

31.3 (24.9 to 42.3)**

0.5 (-2.2 to 4.0)

1.7 (-1.3 to 6.1)

 PSF + TOF

32.3 (26.9 to 38.5)**

1.5 (-0.9 to 4.4)

2.6 (0.1 to 6.1)

SBR3

   

 FBP

32.4 (27.1 to 39.6)**

1.4 (-1.1 to 3.5)

-6.1 (-10.9 to -1.4)

 FBP + TOF

26.9 (23.0 to 32.1)***

-0.1 (-2.3 to 2.3)

-7.5 (-13.5 to -3.2)*

 3D-OSEM

28.7 (22.9 to 31.8)***

0.7 (-1.5 to 3.4)

-5.8 (-9.3 to -3.2)*

 3D-OSEM + TOF

26.1 (22.2 to 28.1)***

0.8 (-0.9 to 2.9)

-6.2 (-9.6 to -4.0)*

 PSF

26.9 (24.8 to 29.6)***

1.8 (0.6 to 4.4)

-5.6 (-10.5 to -3.4)*

 PSF + TOF

29.6 (26.2 to 33.2)***

3.3 (1.5 to 4.8)*

-3.2 (-5.3 to -2.3)*

  1. Mean (range) relative deviations from reference SUV of all spheres are displayed for each SBR and reconstruction method. t test: *P < 0.05; **P < 0.01; ***P < 0.001.