FIGURE 3.

Absolute differences in regional CBF estimates between scanner I and scanner II in healthy volunteers. Note that these differences are calculated in ml/100 g/min. The dotted line is there as a reference at 0, that is, represents no difference in ROI average CBF between scanner I and scanner II. GM = gray matter, BS = brainstem, FL = frontal lobe, OL = occipital lobe, TL = temporal lobe, PL = parietal lobe, Ce = cerebellum, Ins = insular cortex, ACC = anterior cingulate cortex, PCC = posterior cingulate cortex, Tha = thalamus, Cau = caudate nucleus, Put = putamen, Pal = pallidum, Hip = hippocampus, Am = amygdala, Ac = Accumbens