Cerebral Blood Flow Measurement Using fMRI and PET: A Cross-Validation Study
Table 1
CBF measured with PET in 10 subjects under 6
experimental conditions (baseline, 4 levels of graded visual checkerboard (CHB)
stimulation as well as hypercapnia (HC)) in the V1 ROI, followed by the CBF
measurements averaged over the 10 subjects in all 3 ROIs—V1, t-map, and GM ROIs. The PET ΔCBF measurements have a high standard
deviation, largely attributable to the abnormally high CBF measured in subject
8.
Subject
Baseline
25% CHB
50% CHB
75% CHB
100% CHB
5% HC
mean CBF in V1 ROI for all 10 subjects (mL/100 g tissue/min)