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Index by author

January 01, 2019; Volume 40,Issue 1

  1. Naggara, O.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Two-Layered Susceptibility Vessel Sign and High Overestimation Ratio on MRI Are Predictive of Cardioembolic Stroke
      R. Bourcier, I. Derraz, S. Bracard, C. Oppenheim and O. Naggara on behalf of the THRACE Investigators
      American Journal of Neuroradiology January 2019, 40 (1) 65-67; DOI: https://doi.org/10.3174/ajnr.A5865

      Two characteristics of the susceptibility vessel sign, overestimation ratio (overR), a quantitative evaluation of the susceptibility vessel sign, and the 2-layered susceptibility vessel sign (TL-SVS), were reported to predict cardioembolic stroke. These 2 biomarkers, on 1.5T or 3T systems (159 and 101 patients, respectively), demonstrated high specificity (0.77 at 1.5T and 1 at 3T) and their simultaneous presence is highly associated with cardioembolism.

  2. Nair, J.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Open Access
      Radiomics-Based Intracranial Thrombus Features on CT and CTA Predict Recanalization with Intravenous Alteplase in Patients with Acute Ischemic Stroke
      W. Qiu, H. Kuang, J. Nair, Z. Assis, M. Najm, C. McDougall, B. McDougall, K. Chung, A.T. Wilson, M. Goyal, M.D. Hill, A.M. Demchuk and B.K. Menon
      American Journal of Neuroradiology January 2019, 40 (1) 39-44; DOI: https://doi.org/10.3174/ajnr.A5918

      Sixty-seven patients with ICA/M1 MCA segment thrombus treated with IV alteplase were included in this analysis. Three hundred twenty-six radiomics features were extracted from each thrombus on both NCCT and CTA images. Linear discriminative analysis was applied to select features most strongly associated with early recanalization with IV alteplase. These features were then used to train a linear support vector machine classifier. Thrombus radiomics features derived from NCCT and CTA are more predictive of recanalization with IV alteplase in patients with acute ischemic stroke with proximal occlusion than previously known thrombus imaging features such as length, volume, and permeability.

  3. Najm, M.

    1. Adult Brain
      Open Access
      Automated ASPECTS on Noncontrast CT Scans in Patients with Acute Ischemic Stroke Using Machine Learning
      H. Kuang, M. Najm, D. Chakraborty, N. Maraj, S.I. Sohn, M. Goyal, M.D. Hill, A.M. Demchuk, B.K. Menon and W. Qiu
      American Journal of Neuroradiology January 2019, 40 (1) 33-38; DOI: https://doi.org/10.3174/ajnr.A5889
    2. FELLOWS' JOURNAL CLUBAdult Brain
      Open Access
      Radiomics-Based Intracranial Thrombus Features on CT and CTA Predict Recanalization with Intravenous Alteplase in Patients with Acute Ischemic Stroke
      W. Qiu, H. Kuang, J. Nair, Z. Assis, M. Najm, C. McDougall, B. McDougall, K. Chung, A.T. Wilson, M. Goyal, M.D. Hill, A.M. Demchuk and B.K. Menon
      American Journal of Neuroradiology January 2019, 40 (1) 39-44; DOI: https://doi.org/10.3174/ajnr.A5918

      Sixty-seven patients with ICA/M1 MCA segment thrombus treated with IV alteplase were included in this analysis. Three hundred twenty-six radiomics features were extracted from each thrombus on both NCCT and CTA images. Linear discriminative analysis was applied to select features most strongly associated with early recanalization with IV alteplase. These features were then used to train a linear support vector machine classifier. Thrombus radiomics features derived from NCCT and CTA are more predictive of recanalization with IV alteplase in patients with acute ischemic stroke with proximal occlusion than previously known thrombus imaging features such as length, volume, and permeability.

  4. Nappini, S.

    1. Neurointervention
      Y-Stent-Assisted Coiling of Wide-Neck Bifurcation Intracranial Aneurysms: A Meta-Analysis
      F. Cagnazzo, N. Limbucci, S. Nappini, L. Renieri, A. Rosi, A. Laiso, D. Tiziano di Carlo, P. Perrini and S. Mangiafico
      American Journal of Neuroradiology January 2019, 40 (1) 122-128; DOI: https://doi.org/10.3174/ajnr.A5900

  5. Ngandu, T.

    1. Adult Brain
      Open Access
      Brain β-Amyloid and Atrophy in Individuals at Increased Risk of Cognitive Decline
      I.K. Martikainen, N. Kemppainen, J. Johansson, J. Teuho, S. Helin, Y. Liu, S. Helisalmi, H. Soininen, R. Parkkola, T. Ngandu, M. Kivipelto and J.O. Rinne
      American Journal of Neuroradiology January 2019, 40 (1) 80-85; DOI: https://doi.org/10.3174/ajnr.A5891

  6. Nicolai, J.

    1. Pediatrics
      “Ears of the Lynx” MRI Sign Is Associated with SPG11 and SPG15 Hereditary Spastic Paraplegia
      B. Pascual, S.T. de Bot, M.R. Daniels, M.C. França, C. Toro, M. Riverol, P. Hedera, M.T. Bassi, N. Bresolin, B.P. van de Warrenburg, B. Kremer, J. Nicolai, P. Charles, J. Xu, S. Singh, N.J. Patronas, S.H. Fung, M.D. Gregory and J.C. Masdeu
      American Journal of Neuroradiology January 2019, 40 (1) 199-203; DOI: https://doi.org/10.3174/ajnr.A5935
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