From: Use of diffusion and perfusion magnetic resonance imaging as a tool in acute stroke clinical trials
Imaging methods | DWI, PWI, MRA, T2/FLAIR |
Selection criteria | Cortical DWI lesion > 5 cm3 |
 | Diffusion-perfusion mismatch |
 | No pre-existing lesions in same vascular |
 | territory |
Outcome variable | Change in lesion volume, pretreatment to |
 | chronic (3 months) |
Data analysis | Transformed lesion volume (percentage |
 | change, log, cube root) |
 | Co-variance analysis on baseline variables: |
 |    NIHSS, volume of hypoperfusion, initial |
 |    lesion volume |