Subgroup analysis of anterior versus posterior circulation occlusions
| Anterior (n = 22) | Posterior (n = 16) | P Value | |
|---|---|---|---|
| Mean age (range) (yr) | 59.3 (34–77) | 63.1 (39–79) | .24 |
| Male (%) | 40.9 | 62.5 | .32 |
| Median time between BBMRI and CTA/DSA days (range) (day) | 3 (0–18) | 1 (0–20) | .62 |
| Occlusion chronicity (%) | .02 | ||
| Acute/subacute | 59.1 | 18.8 | |
| Chronic/incidental | 40.9 | 81.2 | |
| Hyperintensity (%) | .29 | ||
| Grade 1 | 77.3 | 56.2 | |
| Grade 2 | 22.7 | 43.7 | |
| Enhancement (%) | .99 | ||
| Grade 1 | 18.2 | 12.5 | |
| Grade 2 | 81.8 | 87.5 |