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Author Details

William A Copen
Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital
1996
50
28
PMIDPaper TitleJournal TitlePublished Year
37141607A Case Report of Reversible Cognitive Decline in a Former Professional American-Style Football Player: Findings from the Football Players Health Study In-Person Assessments.Curr Sports Med Rep2023
35149137Severe cerebral edema in substance-related cardiac arrest patients.Resuscitation2022
32348184Gender Disparity in Industry Relationships With Academic Interventional Radiology Physicians.AJR Am J Roentgenol2020
30693424White Matter Integrity and Early Outcomes After Acute Ischemic Stroke.Transl Stroke Res2019
31147354Ensemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRI.AJNR Am J Neuroradiol2019
29689135Intravenous thrombolysis in unwitnessed stroke onset: MR WITNESS trial results.Ann Neurol2018
28481164Diffuse microvascular dysfunction and loss of white matter integrity predict poor outcomes in patients with acute ischemic stroke.J Cereb Blood Flow Metab2018
29190675In patients with suspected acute stroke, CT perfusion-based cerebral blood flow maps cannot substitute for DWI in measuring the ischemic core.PLoS One2017
28445665Case 13-2017. A 41-Year-Old Man with Hearing Loss, Seizures, Weakness, and Cognitive Decline.N Engl J Med2017
26690938Longitudinal Diffusion Tensor Imaging Detects Recovery of Fractional Anisotropy Within Traumatic Axonal Injury Lesions.Neurocrit Care2016
26386285Comparing prognostic strength of acute corticospinal tract injury measured by a new diffusion tensor imaging based template approach versus common approaches.J Neurosci Methods2016
27432662Brain perfusion: computed tomography and magnetic resonance techniques.Handb Clin Neurol2016
26754948Diffusion tensor imaging in acute-to-subacute traumatic brain injury: a longitudinal analysis.BMC Neurol2016
25258369Combining MRI with NIHSS thresholds to predict outcome in acute ischemic stroke: value for patient selection.AJNR Am J Neuroradiol2015
26199314Role of Acute Lesion Topography in Initial Ischemic Stroke Severity and Long-Term Functional Outcomes.Stroke2015
26193486In Acute Stroke, Can CT Perfusion-Derived Cerebral Blood Volume Maps Substitute for Diffusion-Weighted Imaging in Identifying the Ischemic Core?PLoS One2015
25732923Multimodal imaging in acute ischemic stroke.Curr Treat Options Cardiovasc Med2015
25500309Exposing hidden truncation-related errors in acute stroke perfusion imaging.AJNR Am J Neuroradiol2015
24399372Improving door-to-needle times: a single center validation of the target stroke hypothesis.Stroke2014
25190444Time and diffusion lesion size in major anterior circulation ischemic strokes.Stroke2014
25343371Optimal brain MRI protocol for new neurological complaint.PLoS One2014
24519021Corticospinal tract diffusion abnormalities early after stroke predict motor outcome.Neurorehabil Neural Repair2014
23317169Dynamic contrast-enhanced MRA at 1.5 T for detection of arteriovenous shunting before and after Onyx embolization of cerebral arteriovenous malformations.J Neuroimaging2013
23860298Acute Stroke Imaging Research Roadmap II.Stroke2013
23493340The Massachusetts General Hospital acute stroke imaging algorithm: an experience and evidence based approach.J Neurointerv Surg2013
22287191Comparison of wideband steady-state free precession and Tâ¿¿-weighted fast spin echo in spine disorder assessment at 1.5 and 3 T.Magn Reson Med2012
22761110Reliability of cerebral blood volume maps as a substitute for diffusion-weighted imaging in acute ischemic stroke.J Magn Reson Imaging2012
21474633Cerebral blood flow thresholds for tissue infarction in patients with acute ischemic stroke treated with intra-arterial revascularization therapy depend on timing of reperfusion.AJNR Am J Neuroradiol2011
21640299MR perfusion imaging in acute ischemic stroke.Neuroimaging Clin N Am2011
21465323Outcome in patients with H1N1 influenza and cerebrovascular injury treated with extracorporeal membrane oxygenation.Neurocrit Care2011
21504849Time-resolved contrast-enhanced magnetic resonance angiography in the investigation of suspected intracranial dural arteriovenous fistula.J Clin Neurosci2011
20335590Case records of the Massachusetts General Hospital. Case 9-2010. A 37-year-old woman with paresthesias and ataxia.N Engl J Med2010
20876492Early experience of translating pH-weighted MRI to image human subjects at 3 Tesla.Stroke2010
20460995Posterior circulation stroke after C1-C2 intraarticular facet steroid injection: evidence for diffuse microvascular injury.Anesthesiology2010
20595665Combining acute diffusion-weighted imaging and mean transmit time lesion volumes with National Institutes of Health Stroke Scale Score improves the prediction of acute stroke outcome.Stroke2010
19164120Existence of the diffusion-perfusion mismatch within 24 hours after onset of acute stroke: dependence on proximal arterial occlusion.Radiology2009
20007563Case Records of the Massachusetts General Hospital. Case 38-2009 - a 16-year-old boy with paroxysmal headaches and visual changes.N Engl J Med2009
19369672Case records of the Massachusetts General Hospital. Case 12-2009. A 46-year-old man with migraine, aphasia, and hemiparesis and similarly affected family members.N Engl J Med2009
17940920Neurological disorders in pregnancy from a neuroimaging perspective.Semin Neurol2007
16873008Diffusion-weighted imaging in acute stroke.Magn Reson Imaging Clin N Am2006
16360586Diffusion-weighted imaging in acute stroke.Neuroimaging Clin N Am2005
11779894Magnetic resonance perfusion-weighted imaging of acute cerebral infarction: effect of the calculation methods and underlying vasculopathy.Stroke2002
11568317Ischemic stroke: effects of etiology and patient age on the time course of the core apparent diffusion coefficient.Radiology2001
11283394Predicting tissue outcome in acute human cerebral ischemia using combined diffusion- and perfusion-weighted MR imaging.Stroke2001
10478247Human acute cerebral ischemia: detection of changes in water diffusion anisotropy by using MR imaging.Radiology1999
10066858Diffusion- and perfusion-weighted imaging in vasospasm after subarachnoid hemorrhage.Stroke1999
10207439Hyperacute stroke: simultaneous measurement of relative cerebral blood volume, relative cerebral blood flow, and mean tissue transit time.Radiology1999
9804633Time course of lesion development in patients with acute stroke: serial diffusion- and hemodynamic-weighted magnetic resonance imaging.Stroke1998
9596239Regional ischemia and ischemic injury in patients with acute middle cerebral artery stroke as defined by early diffusion-weighted and perfusion-weighted MRI.Stroke1998
8668784Hyperacute stroke: evaluation with combined multisection diffusion-weighted and hemodynamically weighted echo-planar MR imaging.Radiology1996
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Collaborators

Pamela W Schaefer
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 23
Ona Wu
Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging
Co-authored papers 21
Lee H Schwamm
Massachusetts General Hospital
Co-authored papers 16
Michael H Lev
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 10
Walter J Koroshetz
National Institute of Neurological Disorders and Stroke
Co-authored papers 8
Natalia S Rost
Harvard Medical School
Co-authored papers 6
Guy A Rordorf
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 5
Bruce R Rosen
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 5
Brian L Edlow
Center for Neurotechnology and Neurorecovery, Massachusetts General Hospital
Co-authored papers 5
Ferdinando S Buonanno
Massachusetts General Hospital
Co-authored papers 5
David M Greer
Boston Medical Center
Co-authored papers 4
Matthew P Frosch
Massachusetts General Hospital and Harvard Medical School
Co-authored papers 4
Aneesh B Singhal
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 3
Otto Rapalino
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 3
Karen L Furie
Alpert Medical School of Brown University
Co-authored papers 2
Timothy G Reese
Massachusetts General Hospital/Harvard Medical School
Co-authored papers 2
Saef Izzy
Brigham and Women's Hospital, Harvard Medical School
Co-authored papers 2
Christopher S Ogilvy
Beth Israel Deaconess Medical Center Brain Aneurysm Institute. Harvard Medical School
Co-authored papers 2
Andre van der Kouwe
Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital
Co-authored papers 2
Steven M Greenberg
Massachusetts General Hospital
Co-authored papers 2
Muhammad Amjad Pervez
Armed Forces Institute of Pathology, National University of Medical Sciences
Co-authored papers 1
Rebecca A Betensky
New York University.
Co-authored papers 1
W Taylor Kimberly
Massachusetts General Hospital
Co-authored papers 1
Joshua N Goldstein
Harvard Medical School, Massachusetts General Hospital
Co-authored papers 1
Ross Zafonte
Spaulding Rehabilitation Hospital, Harvard Medical School
Co-authored papers 1
Joseph T Giacino
Spaulding Rehabilitation Hospital
Co-authored papers 1
Brandon L Hancock
Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital
Co-authored papers 1
Eric E Smith
Cumming School of Medicine, University of Calgary
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Ben Glocker
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Eric S Rosenthal
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