FIGURE 4.

Correlations between longitudinal changes in SUVR in age-related, meningeal, and target regions. We assessed ΔSUVR in regions presenting target (Braak I–VI), off-target (both telencephalon and cerebellar meninges), and age-related (putamen/pallidum) tracer uptake. We observed strong ΔSUVR among target regions; however, those did not correlate with ΔSUVRs in off-target and age-related regions. Matrix (A) and plots (B) present estimates of Pearson correlations between regions. Δ = change calculated as $\frac{(\text{follow-up} \text{SUVR}\hspace{0.17em}-\hspace{0.17em}\text{baseline} \text{SUVR})}{\text{time} \left(\text{y}\right)}.$