Table 2:
T1blood values and corresponding CBF values quantified from ASLa
| T1blood | Method (Value) | ASL-CBF (mL/100 g/min) | P Value |
|---|---|---|---|
| T1blood-fixed | Literature (1650 ms) | 114 ± 13 | <.05 |
| T1blood-Hct | Calculated from patient's hematocrit (variable) | 95 ± 10 | <.05 |
| T1blood- measured | Measured with MR in vivo in patients with SCD (variable) | 106 ± 14 | NS |
| T1blood-SCD | Mean of T1blood-measured (1818 ms) | 105 ± 12 | NS |
Note:—NS indicates not significant.
a
Repeated-measures ANOVA was performed to test the significance (P in the final column) of differences between CBF from ASL and reference CBF obtained from phase-contrast MRI flow measurements.