Table 2.
Coefficients of variation of regional 31P measurements in 10 participants scanned on 2 separate days (inter-day) and in 3 participants scanned 2 times on the same day (intra-day).
| Region | Coefficient of Variation (%) |
|||||||
|---|---|---|---|---|---|---|---|---|
| PCr/ATP |
Pi/ATP |
PME/PDE |
pH |
|||||
| Inter | Intra | Inter | Intra | Inter | Intra | Inter | Intra | |
| AD meta region | 5.0 | 1.4 | 7.3 | 5.1 | 4.5 | 1.6 | 0.09 | 0.11 |
| Inferior parietal lobe | 4.2 | 1.7 | 8.8 | 7.5 | 4.5 | 1.2 | 0.09 | 0.12 |
| Inferior temporal cortex | 6.3 | 3.6 | 10.7 | 3.5 | 10.7 | 10.1 | 0.10 | 0.09 |
| Middle frontal gyrus | 6.0 | 2.0 | 7.7 | 4.9 | 6.1 | 3.9 | 0.09 | 0.04 |
| Posterior cingulate cortex | 5.2 | 4.1 | 7.3 | 6.9 | 4.3 | 5.2 | 0.10 | 0.06 |
| Precuneus | 4.3 | 4.0 | 8.0 | 3.9 | 5.2 | 4.5 | 0.12 | 0.09 |
| Prefrontal cortex | 8.3 | 2.4 | 6.6 | 1.7 | 6.4 | 6.4 | 0.06 | 0.05 |
| Superior temporal cortex | 7.2 | 7.3 | 6.4 | 15.2 | 6.9 | 6.4 | 0.08 | 0.17 |
| Thalamus | 5.7 | 6.0 | 8.4 | 6.6 | 6.0 | 5.0 | 0.11 | 0.08 |