Figure 3. Subgroup analyses: Adjusted odds ratios of the multiple regression analysis for association of CT vs MRI with the primary outcome of futile recanalization.

ASPECTS = Alberta Stroke Program Early CT Score (1 point was added for MRI patients to control for the difference in diffusion-weighted imaging ASPECTS as compared to CT ASPECTS); ICA = internal carotid artery; M1 = middle cerebral artery 1st segment; M2 = middle cerebral artery 2nd segment.