Correlation Between Sinus Pneumatization and SUVmean Bias for Model B PET/MR AC Compared with Reference CT
| FreeSurfer region | SUVmean bias | Sphenoid sinus pneumatization | Frontal sinus pneumatization |
| Frontal pole | +10.5% | R = +0.56 (P = 0.024) | R = −0.36 (P = 0.175) |
| Rostral middle frontal | +6.1% | R = +0.46 (P = 0.073) | R = −0.55 (P = 0.027) |
| Pars triangularis | +7.0% | R = +0.51 (P = 0.044) | R = −0.39 (P = 0.137) |
n = 16 subjects; only left-sided data are shown for simplicity.