Browsing by Author "Lev, Michael"

Now showing items 1-8 of 8

    • An explainable deep-learning algorithm for the detection of acute intracranial haemorrhage from small datasets 

      Lee, Hyunkwang; Yune, Sehyo; Mansouri, Mohammad; Kim, Myeongchan; Tajmir, Shahein H.; Guerrier, Claude E.; Ebert, Sarah A.; Pomerantz, Stuart; Romero, Javier; Kamalian, Mohammad; Gonzalez, Ramon; Lev, Michael; Do, Synho (Springer Science and Business Media LLC, 2018-12-17)
      Owing to improvements in image recognition via deep learning, machine-learning algorithms could eventually be applied to automated medical diagnoses that can guide clinical decision-making. However, these algorithms remain ...

    • Good Outcome Rate of 35% in IV-tPA-Treated Patients With Computed Tomography Angiography Confirmed Severe Anterior Circulation Occlusive Stroke 

      Gonzalez, Ramon Gilberto; Furie, K. L.; Goldmacher, G. V.; Smith, W. S.; Kamalian, S.; Payabvash, S.; Harris, Gordon J.; Halpern, Elkan F.; Koroshetz, W. J.; Camargo, Erica Christina; Dillon, W. P.; Lev, Michael Howard (Ovid Technologies (Wolters Kluwer Health), 2013)
      BACKGROUND AND PURPOSE: To determine the effect of intravenous tissue plasminogen activator (IV-tPA) on outcomes in patients with severe major anterior circulation ischemic stroke. METHODS: Prospectively, 649 patients ...

    • Hospital Acquired Pneumonia Is Linked to Right Hemispheric Peri-Insular Stroke 

      Kemmling, André; Lev, Michael H.; Payabvash, Seyedmehdi; Betensky, Rebecca A.; Qian, Jing; Masrur, Shihab; Schwamm, Lee H. (Public Library of Science, 2013)
      Purpose Hospital acquired pneumonia (HAP) is a major complication of stroke. We sought to determine associations between infarction of specific brain regions and HAP. Methods: 215 consecutive acute stroke patients with HAP ...

    • Improved Outcome Prediction Using CT Angiography in Addition to Standard Ischemic Stroke Assessment: Results from the STOPStroke Study 

      Lev, Michael Howard; Smith, Wade S.; Payabvash, Seyedmehdi; Harris, Gordon J.; Halpern, Elkan F.; Koroshetz, Walter J.; Dillon, William P.; Furie, Karen L.; Goldmacher, Gregory V.; Camargo, Erica Christina S.; González, Ramon Gilberto (Public Library of Science, 2012)
      Purpose: To improve ischemic stroke outcome prediction using imaging information from a prospective cohort who received admission CT angiography (CTA). Methods: In a prospectively designed study, 649 stroke patients diagnosed ...

    • 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 ...

    • 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 ...

    • 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 ...