Hyperacute=pretreatment magnetic resonance imaging protocol; mRS=modified Rankin Scale score; prehyperacute=computed tomography and computed tomography angiography protocol.Reproduced from Wisco D et al. Addition of hyperacute MRI AIDS in patient selection, decreasing the use of endovascular stroke therapy. Stroke 2014;45(2):467–472. With permission from Lippincott Williams and Wilkins.