Table 2.
Volume, mean activity concentration, and total activity in various ROIs projected onto the checkerboard images with MR and PET resolution.
| Brain region | MR image | PET 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 striatum | 16.4 | 0.50 | 8.19 | 15.3 | 0.52 | 7.95 |
| Right striatum | 15.1 | 0.50 | 7.56 | 14.7 | 0.50 | 7.30 |
| Hippocampus | 26.4 | 0.50 | 13.22 | 26.8 | 0.50 | 13.38 |
| Frontal cortex | 46.1 | 0.50 | 23.03 | 48.6 | 0.50 | 24.13 |
| Posterior cortex | 49.6 | 0.50 | 24.80 | 48.9 | 0.49 | 23.96 |
| Medulla oblongata | 15.7 | 0.50 | 7.85 | 15.8 | 0.49 | 7.75 |
| Cerebellum | 86.7 | 0.50 | 43.35 | 86.0 | 0.49 | 42.14 |
a1 MR voxel = 0.0013 mm3.
b1 PET voxel = 1.81 mm3.