Table 1:

Voxel-based univariate analysis of infarction and noninfarction voxelsa

VariableInfarctionNoninfarctionP Valueb
TTP32.00 (1.95)24.30 (1.19)<.001
rCBF24.78 (2.81)48.43 (6.49)<.001
rCBV2.81 (0.46)4.09 (0.56).02
ATD3.58 (0.18)1.49 (0.16)<.001
MTT6.58 (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
TTPdiff8.39 (0.41)0.25 (0.17)<.001
ATDdiff2.15 (0.17)−0.16 (0.06)<.001
MTTdiff2.19 (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.