Bland-Altman plots for the various outcome measures derived from FBP and PVC OSEM reconstructed data. (A) 1T2k model, V
T as outcome measure. (B) 1T2k10 model, K
1 as outcome measure. (C) 2T4kVTnsfix model, BPND as outcome measure. The Greek letter delta represents the change between test and retest values in the global cortical region. On the x-axis, the mean of test and retest values is given. Squares, FBP data; triangles, PVC OSEM data.