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Dr. Copen is an assistant radiologist in the Division of Neuroradiology and director of Advanced Magnetic Resonance Neuroimaging.
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View my most recent publications at PubMed
N Suwanwela, U Can, JA Moreira, WA Copen. Hyperacute stroke: evaluation with combined multisection diffusion-weighted and hemodynamically weighted echo-planar MR imaging.Radiology, 1996, pubs.rsna.org.
AG Sorensen, WA Copen, L Ostergaard, FS Buonanno. Hyperacute stroke: simultaneous measurement of relative cerebral blood volume, relative cerebral blood flow, and mean tissue transit time. Radiology, 1999, pubs.rsna.org.
AG Sorensen, O Wu, WA Copen, TL Davis. Human Acute Cerebral Ischemia: Detection of Changes in Water Diffusion Anisotropy by Using MR Imaging 1. Radiology, 1999, pubs.rsna.org.
G Rordorf, WJ Koroshetz, WA Copen, SC Cramer. Regional ischemia and ischemic injury in patients with acute middle cerebral artery stroke as defined by early diffusion-weighted and perfusion-weighted MRI. Stroke, 1998, Am Heart Assoc.
L ?stergaard, FS Buonanno, WA Copen. Predicting tissue outcome in acute human cerebral ischemia using combined diffusion-and perfusion-weighted MR imaging. Stroke, 2001, Am Heart Assoc.
RG Gonzalez, D Bakker, L ?stergaard, WA Copen. Magnetic resonance perfusion-weighted imaging of acute cerebral infarction effect of the calculation methods and underlying vasculopathy. Stroke, 2002, Am Heart Assoc.
WA Copen, LH Schwamm, RG Gonz?lez, O Wu. Ischemic Stroke: Effects of Etiology and Patient Age on the Time Course of the Core Apparent Diffusion Coefficient 1. Radiology, 2001 - pubs.rsna.org.
PW Schaefer, WA Copen, MH Lev. Diffusion-weighted imaging in acute stroke. Neuroimaging Clin N Am. 2005 Aug;15(3):503-30, ix-x.
Some patients who suffer a stroke as a result of a blockage in an artery in the brain may benefit from a clot-busting drug nine or more hours after the onset of symptoms.
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