This issue of Neuroimaging Clinics of North America focuses on Ischemic Stroke, and is edited by Dr. Lotfi Hacein-Bey. Articles will include: Clinical distinction of cerebral ischemia and triaging of patients in the ED: mimics, wake-ups, late strokes and chameleons; Telestroke; CT, CTA and CT perfusion of acute stroke; MRI based imaging of acute stroke; Advanced neuroimaging of acute stroke: collaterals, permeability imaging, Arterial Spin Labeling;...