Infarct volume (cm3) distribution according to pial collateral score, occlusion site, and recanalization
| Collateral Score | Complete Recanalization | Partial/No Recanalization | Combined | |||
|---|---|---|---|---|---|---|
| Proximal | Distal | Proximal | Distal | Proximal | Distal | |
| Mean (σ, n) | Mean (σ, n) | Mean (σ, n) | Mean (σ, n) | Mean (σ, n) | Mean (σ, n) | |
| 1 and 2 | *9.4 | †6.2 | ‡68.3 | a49.2 | 41.3 | 34.83 |
| (14.7, 11) | (11.3, 4) | (50.7, 13) | (44.4, 8) | (48.3, 24) | (41.7, 12) | |
| 3–5 | *153.0 | †82.7 | ‡247.7 | a55.1 | 213.3 | 78.1 |
| (66.7, 4) | (40.00, 5) | (157.3, 7) | (na, 1) | (149.9, 11) | (38.4, 6) | |
| Total | 47.7 | 48.7 | 131.1 | 49.8 | 95.3 | 49.2 |
| (91.1, 15) | (50.1, 9) | (131.0, 20) | (41.5, 9) | (121.4, 35) | (44.7, 18) | |
a Unable to prove statistical significance.
* P = .0040, Wilcoxon rank sum test.
† P = .0139, Wilcoxon rank sum test.
‡ P = .0023, Wilcoxon rank sum test.