Parametric maps of RBC:Barrier (binned according to a reference
distribution mean and standard deviation) in coronal slices from 3 different
subjects at both visits (subjects and slices shown are identical to those
presented in Figures 4 and 5). Lung volumes were approximately +14%, +4% and
−18% different at visit 2 for subjects 01, 02 and 06, respectively. Lung
volume differences did not appear to have a significant influence on the
RBC:Barrier ratio, and spatial distributions of regions of relatively high and
low RBC:Barrier appear relatively well matched between visits. Subject numbers
correspond to those in Table 1. Numerical
cutoff values between RBC:Barrier bins (from smallest to largest) were
[−0.17, 0.07, 0.32, 0.56, 0.80].