Figure 6

Comparing the target regional R1 between the Aβ−NC and Aβ+NC groups (Aβ positivity determined by the SUVR cutoff). Compared with the Aβ−NC group, the target regional R1 showed significant increase of perfusion in the Aβ+NC group in (A) frontal, (B) posterior cingulate and precuneus, (C) lateral parietal, (D) lateral temporal, (E) medial temporal, and (F) occipital cortices.