LAUSR

Demeestere et al.1 compared hyperacute infarct volume using the Alberta Stroke Program Early CT Score (ASPECTS) and brain CT perfusion and found no significant difference. ASPECTS and CT perfusion-based studies have already established their critical role in selecting patients for thrombolysis and mechanical recanalization.2,3 In this study, ASPECTS or CT perfusion core volume was compared with MRI diffusion-weighted imaging (DWI) lesion volume.1 However, MRI was performed within 100 minutes (median 60 minutes) of CT perfusion and 49% of patients received thrombolysis before MRI.