Investigator Radiology, Mass General Research Institute

acute ischemic stroke; blood volume determination; brain ischemia; carotid stenosis; central nervous system vascular malformations; cerebral angiography; global hypoxic-ischemic injury; intracranial arteriovenous malformations; magnetic resonance angiography; nervous system diseases; stroke Dr. Copen studies clinical applications of advanced neuroimaging techniques in the care of patients with acute ischemic stroke, global hypoxic-ischemic injury, and other neurologic disorders.