Table 4.
ROI | 1TCM
|
Logan
|
||
---|---|---|---|---|
K1a (mL cm−3 min−1) |
VTa (mL cm−3) |
VTa (mL cm−3) |
Rho (P value)b | |
Thalamus | 0.36 ± 0.06 | 21.44 ± 4.68 | 22.78 ± 5.15 | 0.591 (0.002)* |
Striatum | 0.35 ± 0.06 | 21.82 ± 5.96 | 22.60 ± 5.97 | 0.778 (< 0.001)* |
Hippocampus | 0.27 ± 0.05 | 17.92 ± 3.38 | 19.77 ± 3.97 | 0.666 (< 0.001)* |
Cerebellar CTX | 0.36 ± 0.06 | 16.17 ± 3.32 | 16.92 ± 3.44 | 0.718 (< 0.001)* |
Temporal CTX | 0.30 ± 0.05 | 21.20 ± 3.68 | 22.30 ± 3.94 | 0.621 (0.001)* |
Occipital CTX | 0.38 ± 0.07 | 20.34 ± 3.48 | 21.44 ± 3.66 | 0.652 (< 0.001)* |
Cingulate CTX | 0.35 ± 0.06 | 20.78 ± 3.31 | 21.85 ± 3.51 | 0.610 (0.001)* |
Frontal CTX | 0.36 ± 0.07 | 20.62 ± 4.16 | 21.45 ± 4.19 | 0.581 (0.002)* |
Parietal CTX | 0.36 ± 0.06 | 21.70 ± 4.18 | 22.78 ± 4.35 | 0.670 (< 0.001)* |
Presented as Mean ± Standard Deviation. Regional VT values were generated using metabolite-corrected arterial input function and 90 minute dynamic data.
Spearman’s rank correlation analysis was applied to each test of correlation between age and regional VT generated using Logan analysis. Cortex, CTX; Region of Interest, ROI.
P < 0.0056, which marks significance after applying Bonferroni correction for the nine regions tested.