Table 1:

Statistics for perfusion metrics for all groupsa

CTP before CTACTA before CTPCTP with Flank EffectCTP with Corrected Flank Effect
GroupABB flankB corrected flank
No. of cases36815634949
Age (yr)78.0 (18.5)76.0 (19.0)83.0 (10.2)83.0 (10.2)
P = .06P < .001P < .001
Time gap (sec)91.5 (89.5)62.0 (67.0)18.0 (4.0)18.0 (4.0)
P < .001P < .001P < .001
Baseline (HU)41.0 (3.0)45.0 (4.0)48.0 (6.2)45.0 (5.0)
P < .001P < .001P = .71
Tmax (sec)1.7 (0.6)1.7 (0.5)2.1 (1.2)2.0 (0.9)
P = .054P < .001P < .001
Core volume (mL)18.5 (18.0)18.0 (16.0)26.0 (38.5)23.0 (31.0)
P = .43P = .027P = .078
Hypoperfusion volume (mL)44.5 (96.0)41.0 (76.0)67.0 (81.8)53.0 (85.0)
P = .2P < .001P < .001
  • a Median values, interquartile range (parentheses), and P values from a Wilcoxon rank sum test are reported.