TABLE 2

Perfusion Gains for Permeable and Reoccluded Patient Groups Calculated Using Visual Analysis, Deficit Load, and Automated Segmental Analysis

Type of perfusion gainPermeable group (n = 37)Reoccluded group (n = 12)Unpaired t test
Visual stress12.4% ± 13.3%2.3% ± 8.2%P = 0.02
Visual rest9.2% ± 10.1%4.0% ± 5.5%P = 0.10
Quantitative stress, voxel-by-voxel4.5% ± 3.6%1.9% ± 2.7%P = 0.02
Quantitative rest, voxel-by-voxel2.3% ± 2.2%0.6% ± 2.5%P = 0.03
Quantitative stress, segmental4.1% ± 5.0%0.1% ± 3.5%P = 0.01
Quantitative rest, segmental2.2% ± 3.6%1.5% ± 3.2%P = 0.54