Parameter correlation with final infarct volumea
| Variable | Correlation | P Value |
|---|---|---|
| RAPID rCBV core | 0.77 | <.001 |
| RAPID rCBF core | 0.75 | <.001 |
| RAPID Tmax >4 sec | 0.38 | <.01 |
| RAPID Tmax >6 sec | 0.44 | <.001 |
| RAPID Tmax >8 sec | 0.49 | <.001 |
| RAPID Tmax >10 sec | 0.54 | <.001 |
| NCCT-ASPECTS | −0.40 | <.01 |
| CBV-ASPECTS | −0.50 | <.001 |
| CBF-ASPECTS | −0.48 | <.001 |
| Clot burden scoreb | −0.23 | .11 |
| Collateral score | −0.41 | <.01 |
↵a Correlational analysis between tested variables and final infarct volume (MRI or CT, in milliliters). The strongest overall correlations were observed with RAPID-derived core estimates (rCBF core and rCBV core). Negative correlations were observed between all ASPECTS and CTA-derived measures relative to the final infarct volume.
↵b Significant relationships were observed for all tested variables with the exception of the CTA clot burden score.