Table 4:
Pair-wise differences (mean ± SD) between observed GM CBF (mL/100g/min), without PVC, from different pCASL acquisitions
| 3D 1800 ms | 2D 1800 ms | 3D 1600 ms | 3D 2000 ms | 3D 1800 ms HR | |
|---|---|---|---|---|---|
| 3T | |||||
| 3D 1800 ms | –0.46 ± 1.88a | –6.14 ± 1.45b | –2.10 ± 3.20bc | 2.21 ± 1.85b | –3.65 ± 2.00b |
| 2D 1800 ms | –0.65 ± 3.13a | 4.04 ± 2.95bc | 8.35 ± 2.12b | 2.49 ± 2.02b | |
| 1.5T | |||||
| 3D 1800 ms | 0.15 ± 1.77a | –11.03 ± 3.21bc | –3.78 ± 2.30b | 2.83 ± 2.06b | |
| 2D 1800 ms | 1.15 ± 2.04a | 7.25 ± 4.05bc> | 13.86 ± 3.95bc |
Note:—HR indicates high-resolution.
a
Differences between repeated identical pCASL acquisitions with consensus paper parameter settings.
b
A bias that is significantly different from zero (P < .05).
c
A significantly different variance across the observed pair-wise differences between acquisitions compared with the variance across the pair-wise differences between repeated consensus paper parameter settings (P < .05).