Now showing items 1-7 of 7

    • In Acute Stroke, Can CT Perfusion-Derived Cerebral Blood Volume Maps Substitute for Diffusion-Weighted Imaging in Identifying the Ischemic Core? 

      Copen, William A.; Morais, Livia T.; Wu, Ona; Schwamm, Lee H.; Schaefer, Pamela W.; González, R. Gilberto; Yoo, Albert J. (Public Library of Science, 2015)
      Background and Purpose In the treatment of patients with suspected acute ischemic stroke, increasing evidence suggests the importance of measuring the volume of the irreversibly injured “ischemic core.” The gold standard ...
    • The Massachusetts General Hospital Acute Stroke Imaging Algorithm: An Experience and Evidence Based Approach 

      Gonzalez, Ramon Gilberto; Copen, William Alan; Schaefer, Pamela Whitney; Lev, Michael Howard; Pomerantz, Stuart R.; Rapalino, Otto; Chen, John Wen-Yueh; Hunter, George; Romero, Javier M.; Buchbinder, Bradley R.; Larvie, Mykol; Hirsch, Joshua A.; Gupta, Rajiv (BMJ Publishing Group, 2013)
      The Massachusetts General Hospital Neuroradiology Division employed an experience and evidence based approach to develop a neuroimaging algorithm to best select patients with severe ischemic strokes caused by anterior ...
    • Optimal Brain MRI Protocol for New Neurological Complaint 

      Mehan, William A.; González, R. Gilberto; Buchbinder, Bradley R.; Chen, John W.; Copen, William A.; Gupta, Rajiv; Hirsch, Joshua A.; Hunter, George J.; Hunter, Scott; Johnson, Jason M.; Kelly, Hillary R.; Larvie, Mykol; Lev, Michael H.; Pomerantz, Stuart R.; Rapalino, Otto; Rincon, Sandra; Romero, Javier M.; Schaefer, Pamela W.; Shah, Vinil (Public Library of Science, 2014)
      Background/Purpose Patients with neurologic complaints are imaged with MRI protocols that may include many pulse sequences. It has not been documented which sequences are essential. We assessed the diagnostic accuracy of ...
    • Predictors of Functional Outcome Vary by the Hemisphere of Involvement in Major Ischemic Stroke Treated with Intra-arterial Therapy: A Retrospective Cohort Study 

      Yoo, Albert J.; Romero, Javier M.; Hakimelahi, Reza; Nogueira, Raul Gomes; Rabinov, James D.; Pryor, Johnny Craig; González, R Gilberto; Hirsch, Joshua A.; Schaefer, Pamela Whitney (BioMed Central, 2010)
      Background: Conflicting data exists regarding the effect of hemispheric lateralization on acute ischemic stroke outcome. Some of this variability may be related to heterogeneous study populations, particularly with respect ...
    • Rapid identification of a major diffusion/perfusion mismatch in distal internal carotid artery or middle cerebral artery ischemic stroke 

      Hakimelahi, Reza; Yoo, Albert J.; He, Julian; Schwamm, Lee H.; Lev, Michael Howard; Schaefer, Pamela Whitney; González, Ramon Gilberto (BioMed Central, 2012)
      Background: We tested the hypothesis that in patients with occlusion of the terminal internal carotid artery and/or the proximal middle cerebral artery, a diffusion abnormality of 70 ml or less is accompanied by a ...
    • Stability of Large Diffusion/Perfusion Mismatch in Anterior Circulation Strokes for 4 or More Hours 

      González, R Gilberto; Hakimelahi, Reza; Schaefer, Pamela Whitney; Roccatagliata, Luca; Sorensen, Alma Gregory; Singhal, Aneesh B. (BioMed Central, 2010)
      Background: The stability of hypoperfused brain tissue in stroke patients with major artery occlusions is unknown. The purpose of this study was to determine the persistence of a diffusion/perfusion mismatch in patients ...
    • Time and Diffusion Lesion Size in Major Anterior Circulation Ischemic Strokes 

      Hakimelahi, R.; Vachha, Behroze Adi; Copen, William Alan; Papini, G. D. E.; He, J.; Higazi, Mahmoud Mohamad Mounir Ali; Lev, Michael Howard; Schaefer, Pamela Whitney; Yoo, Albert J.; Schwamm, Lee H.; Gonzalez, Ramon Gilberto (Ovid Technologies (Wolters Kluwer Health), 2014)
      Background: Major anterior circulation ischemic strokes caused by occlusion of the distal internal carotid artery (ICA) or proximal middle cerebral artery (MCA) or both account for about one-third of ischemic strokes with ...