TABLE 3.
CL variance in the young controls and correlation (R 2) between each pair of 18F‐tracer and their corresponding 11C‐PIB using both the standard CL mask and the universal CL mask (lower variance and higher R 2 are marked in bold font).
| Tracer | Variance YC (standard mask) | Variance YC (universal mask) | Correlation (R 2) with PIB (standard mask) | Correlation (R 2) with PIB (universal mask) |
|---|---|---|---|---|
| PIB | 4.39 | 4.19 | NA | NA |
| FBP | 9.04 | 8.67 | 0.898 | 0.902 |
| FBB | 6.51 | 6.16 | 0.956 | 0.959 |
| FLT | 7.15 | 7.01 | 0.965 | 0.967 |
| NAV | 4.11 | 4.06 | 0.987 | 0.987 |
Abbreviations: CL, Centiloid; FBB, 18F‐florbetaben; FBP, 18F‐florbetapir; FLT, 18F‐flutemetamol; NAV, 18F‐NAV4694; PIB, 11C Pittsburgh compound B; YC, young control.