Table 1.
Population, lesion and scanner profiles per Vascular Territory.
| Vascular Territories | Total | ACA | MCA | MCA | VB |
|---|---|---|---|---|---|
| Number of DWIs | 1298 | 29 | 763 | 359 | 147 |
| Age in years | 62.3 ± 14.6 [99, 18] | 65.8 ± 15.7 [85, 22] | 63.0 ± 15.1 [99, 18] | 61.4 ± 13.5 [96, 20] | 60.4 ± 14.4 [93, 21] |
| Sex | |||||
| Male | 686 (52.9%) | 13 (44.8%) | 394 (51.6%) | 197 (54.9%) | 82 (55.8%) |
| Female | 612 (47.1%) | 16 (55.2%) | 369 (48.4%) | 162 (45.1%) | 65 (44.2%) |
| Race | |||||
| African American | 600 (62.6%) | 16 (69.6%) | 316 (58.7%) | 190 (69.3%) | 78 (63.4%) |
| Caucasian | 334 (34.9%) | 7 (30.4%) | 208 (38.7%) | 78 (28.5%) | 41 (33.3%) |
| Asian | 24 (2.5%) | 0 | 14 (2.6%) | 6 (2.2%) | 4 (3.3%) |
| Missing data | 340 | 6 | 225 | 85 | 24 |
| NIHSS | 5.4 ± 5.9 [31, 0]; 551 | 3.4 ± 5.4 [19, 0]; 10 | * 7.1 ± 6.8 [31, 0]; 325 | 3.0 ± 2.7 [14, 0]; 150 | 2.9 ± 3.8 [22, 0]; 66 |
| Days of hospital stay | 5.2 ± 5.5 [39, 0]; 416 | 4.8 ± 3.3 [13, 1]; 8 | 5.9 ± 5.7 [39, 0]; 260 | *0.6 ± 4.3 [38, 0]; 107 | 5.5 ± 6.5 [34, 0]; 41 |
| Onset to MRI in hours | |||||
| <2 | 79 (9.5%) | 4 (19.0%) | 52 (11.1%) | 18 (7.7%) | 5 (4.8%) |
| 2–6 | 170 (20.5%) | 5 (23.8%) | 90 (19.1%) | 46 (19.7%) | 29 (27.9%) |
| 6–12 | 166 (20.0%) | 6 (28.6%) | 87 (18.5%) | 56 (23.9%) | 17 (16.3%) |
| 12–24 | 346 (41.7%) | 4 (19.0%) | 203 (43.2%) | 96 (41.0%) | 43 (41.3%) |
| >24 | 68 (8.2%); | 2 (9.5%); | 38 (8.1%); | 18 (7.7%) | 10 (9.6%); |
| Missing data | 469 | 8 | 293 | 125 | 43 |
| MRI magnetic field | |||||
| 1.5T | 869 (66.9%) | 16 (55.2%) | 517 (67.9%) | 238 (66%) | 98 (66.7%) |
| 3T | 429 (33.1%) | 13 (44.8%) | 246 (32.1%) | 121 (34%) | 9 (33.3%) |
| Lesioned hemisphere | |||||
| Left | 682 (52.5%) | 23 (79.3%) | 385 (50.5%) | 189 (52.6%) | 85 (57.8%) |
| Right | 616 (47.5%) | 6 (20.7%) | 378 (49.5%) | 170 (47.4%) | 62 (42.2%) |
| Stroke volume in ml | 21.6 ± 47.1 [403.5, 0.028] | 7.6 ± 10.9 [44.4, 0.15] | * 32.2 ± 58.1 [403.5, 0.06] | 6.4 ± 14.0 [131.6, 0.028] | 6.8 ± 13.8 [70.9, 0.084] |
| Relative stroke volume | |||||
| % of arterial territory | 7.8% | 5.5% | 9.2% | 5.5% | 6.9% |
| % of brain volume | 1.50% | 0.58% | 2.24% | 0.43% | 0.45% |
ACA, PCA, MCA stand for Anterior, Posterior, and Middle Cerebral Artery territories, VB stands for Vertebro-Basilar territory. Statistical significant differences at p-value < 0.05 are marked with “*”; Continued variables showed as mean ± standard deviation [maximum, minimum]; missing data.