Table 2: Volume, mean activity concentration, and total activity in various ROIs projected onto the checkerboard images with MR and PET resolution.

Brain regionMR imagePET image
Volume
(mm3)
Mean voxel
Activity concentrationa (kBq·mL−1)
Mean ROI activity
(Bq)
Volume
(mm3)
Mean voxel
Activity concentrationb (kBq·mL−1)
Mean ROI
activity
(Bq)

Left striatum16.40.508.1915.30.527.95
Right striatum15.10.507.5614.70.507.30
Hippocampus26.40.5013.2226.80.5013.38
Frontal cortex 46.10.5023.0348.60.5024.13
Posterior cortex 49.60.5024.8048.90.4923.96
Medulla oblongata15.70.507.8515.80.497.75
Cerebellum86.70.5043.3586.00.4942.14

a1 MR voxel  mm3.
b1 PET voxel  mm3.