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Workflow diagram detailing the algorithm to select AIS patients with or without large artery occlusion for IV-tPA, MT, or IV-tPA followed by MT. CT = computed tomography; MRI = magnetic resonance imaging; IV-tPA = intravenous trans-plasminogen activator; ICU = intensive care unit; CTA = CT angiography; MRA = MR angiography; LVO = large vessel occlusion; NIHSS = National Institutes of Health Stroke Scale; ICA = internal carotid artery
