Isodense group
| No Recanalization (n=16) | Recanalized (n=9) | p Value | |
| Received IV tPA | 31% (5/16) | 33% (3/9) | 0.999 |
| Stroke etiology | 0.999 | ||
| Cardioembolic | 75% (12/16) | 89% (8/9) | |
| Extracranial arterial disease | 6% (1/16) | 0% (0/9) | |
| Intracranial arterial disease | 6% (1/16) | 0% (0/9) | |
| Cryptogenic | 13% (2/16) | 11% (1/9) | |
| Time to treatment (mean±SEM) | 462.1±66.3 (n=11) | 442.5±97.2 (n=6) | 0.867 |
| Number of attempts (mean±SEM) | 2.88±0.43 | 1.89±0.35 | 0.131 |