Table 1 Statistics for PET quantification errors of the two AC methods: the relative difference (Rel%) and absolute relative difference (Abs%) are reported for all the voxels within the specified regions

2.1 ± 2.4

− 2.1 ± 3.2

− 4.9 ± 12.1

− 4.3 ± 20.3

− 0.5 ± 4.4

− 0.4 ± 5.1

− 2.4 ± 6.4

− 7.9 ± 9.7

0.5 ± 6.4

0.8 ± 12.1

− 4.0 ± 6.5

− 7.7 ± 12.4

− 0.8 ± 4.8

− 10.9 ± 7.2

1.9 ± 2.3

3.2 ± 2.3

9.5 ± 10.5

15.4 ± 13.9

3.4 ± 2.9

4.2 ± 2.7

4.9 ± 4.7

9.8 ± 7.6

4.9 ± 4.1

9.3 ± 7.8

5.8 ± 5.0

11.6 ± 8.9

3.8 ± 2.9

11.2 ± 6.7