Fig 7. Total volume of tissue classified as infarct by the CBFxCBV model with a threshold of CBFxCBV = 31.1 at multiple time points in the study and expressed as a percentage of final infarct volume on TTC-stained sections. Error bars show SD of the mean for each time point. Thresholds for infarction are probably time-dependent and are expected to increase with time from baseline. The assumed threshold at 4 hours after embolization applied at earlier time points is expected to overestimate the fraction of voxels destined to infarction. However, the extent of this overestimation at early time points was not investigated in this study.