Table 1.
Perfusion CT
| Defect | Healthy | |||||
|---|---|---|---|---|---|---|
| Pre-surgery | Post-Surgery | p value | Pre-surgery | Post-Surgery | p value | |
| TTP in sec | TTP | TTP | ||||
| ACA | 20.350 | 20.211 | 20.310 | 19.486 | ||
| MCA | 21.719 | 19.512 | p = 0.046 | 19.454 | 18.951 | |
| PCA | 21.285 | 19.972 | 20.438 | 19.760 | ||
| BG | 20.055 | 18.838 | 19.015 | 18.687 | ||
| Mean | 20.836 | 19.520 | 19.812 | 19.221 | ||
| MTT in sec | MTT | MTT | ||||
| ACA | 9.017 | 8.899 | 6.945 | 6.480 | ||
| MCA | 8.241 | 6.260 | p = 0.014 | 6.541 | 5.430 | p = 0.071 |
| PCA | 7.641 | 6.859 | 6.622 | 6.353 | ||
| BG | 7.461 | 6.689 | 6.845 | 6.011 | ||
| Mean | 8.050 | 7.150 | 6.738 | 6.068 | ||
| CBV in mL/100 g | CBV | CBV | ||||
| ACA | 6.537 | 6.521 | 6.989 | 7.338 | ||
| MCA | 10.456 | 10.580 | 10.713 | 11.332 | ||
| PCA | 8.947 | 11.017 | p = 0.079 | 10.678 | 13.382 | p = 0.0026 |
| BG | 7.561 | 8.000 | 6.941 | 7.578 | ||
| Mean | 8.310 | 9.010 | 8.830 | 9.907 | ||
| CBF in mL/100 g/min | CBF | CBF | ||||
| ACA | 71.28 | 90.98 | p = 0.057 | 107.66 | 121.05 | |
| MCA | 119.36 | 136.73 | 151.24 | 168.82 | ||
| PCA | 108.96 | 133.89 | 136.28 | 166.02 | ||
| BG | 109.07 | 108.03 | 117.39 | 127.00 | ||
| Mean | 101.860 | 117.170 | p = 0.064 | 128.140 | 145.730 | p = 0.028 |
Student's t-test for paired data was applied to compare the pre- and post-surgical values; the p values are reported if they were less than 0.08 (trend) or if they were less than 0.05 (statistically significant).
CT, computed tomography; TTP, time to peak; ACA, anterior cerebral artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; BG, basal ganglia; MTT, mean transient time; CBV, cerebral blood volume; CBF, cerebral blood flow.