Table 1:
Voxel-based univariate analysis of infarction and noninfarction voxelsa
| Variable | Infarction | Noninfarction | P Valueb |
|---|---|---|---|
| TTP | 32.00 (1.95) | 24.30 (1.19) | <.001 |
| rCBF | 24.78 (2.81) | 48.43 (6.49) | <.001 |
| rCBV | 2.81 (0.46) | 4.09 (0.56) | .02 |
| ATD | 3.58 (0.18) | 1.49 (0.16) | <.001 |
| MTT | 6.58 (0.58) | 5.33 (0.15) | .01 |
| rCBFdiff | −25.60 (10.93) | 3.20 (1.20) | .02 |
| rCBVdiff | −1.15 (0.52) | 0.06 (0.06) | .03 |
| TTPdiff | 8.39 (0.41) | 0.25 (0.17) | <.001 |
| ATDdiff | 2.15 (0.17) | −0.16 (0.06) | <.001 |
| MTTdiff | 2.19 (0.49) | −0.12 (0.06) | <.001 |
Note:—rCBV indicates relative CBV.
a
The values are presented as mean (SD). The SDs reported are the Huber-White (robust) standard errors. All units are in seconds, except for rCBF and rCBV, which are unitless.
b
P values are based on a linear regression model with the presence of infarct as the independent variable and imaging parameters as the outcome.