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More articles from Expedited Publication

  • EDITOR'S CHOICEExpedited Publication
    Open Access
    MRI Findings in Children with Acute Flaccid Paralysis and Cranial Nerve Dysfunction Occurring during the 2014 Enterovirus D68 Outbreak
    J.A. Maloney, D.M. Mirsky, K. Messacar, S.R. Dominguez, T. Schreiner and N.V. Stence
    American Journal of Neuroradiology February 2015, 36 (2) 245-250; DOI: https://doi.org/10.3174/ajnr.A4188

    MRI findings in 11 patients with acute flaccid paralysis are described and most commonly included extensive spinal cord lesions affecting the gray matter, especially the anterior horns, ventral cauda equina, and cervical ventral nerve roots as well as the pontinetegmentum.

  • FELLOWS' JOURNAL CLUBExpedited Publication
    Open Access
    MRI Surrogates for Molecular Subgroups of Medulloblastoma
    S. Perreault, V. Ramaswamy, A.S. Achrol, K. Chao, T.T. Liu, D. Shih, M. Remke, S. Schubert, E. Bouffet, P.G. Fisher, S. Partap, H. Vogel, M.D. Taylor, Y.J. Cho and K.W. Yeom
    American Journal of Neuroradiology July 2014, 35 (7) 1263-1269; DOI: https://doi.org/10.3174/ajnr.A3990

    These authors seek to establish the imaging features that would allow classification of medulloblastomas according to their genetic attributes. In nearly 100 tumors they found that groups 3 and 4 occurred predominantly in the fourth ventricle, wingless ones were located in the cerebellar peduncles or CPA region, and sonic hedgehog tumors were present in cerebellar hemispheres. Midline group 4 tumors showed minimal contrast enhancement. Thus, tumor location and contrast-enhancement patterns may be predictive of the molecular subtypes of medulloblastoma.

  • EDITOR'S CHOICEExpedited Publication
    Open Access
    WEB-DL Endovascular Treatment of Wide-Neck Bifurcation Aneurysms: Short- and Midterm Results in a European Study
    B. Lubicz, J. Klisch, J.-Y. Gauvrit, I. Szikora, M. Leonardi, T. Liebig, N.P. Nuzzi, E. Boccardi, F.D. Paola, M. Holtmannspötter, W. Weber, E. Calgliari, V. Sychra, B. Mine and L. Pierot
    American Journal of Neuroradiology March 2014, 35 (3) 432-438; DOI: https://doi.org/10.3174/ajnr.A3869

    Short- and midterm results of endovascular aneurysm treatment with the new WEB-DL device were assessed in 45 patients from 12 European centers. Of these, 42 aneurysms were unruptured and most were located either in the MCA bifurcation or the posterior circulation. Adequate occlusion was observed in 81% and 90% of aneurysms at 6 and 13 months, respectively. Results suggest that WEB endovascular treatment of wide-neck bifurcation aneurysms offers stable occlusion in a class of aneurysms that are historically unstable.

  • Expedited Publication
    Open Access
    Resolution of Mass Effect and Compression Symptoms following Endoluminal Flow Diversion for the Treatment of Intracranial Aneurysms
    I. Szikora, M. Marosfői, B. Salomváry, Z. Berentei and I. Gubucz
    American Journal of Neuroradiology May 2013, 34 (5) 935-939; DOI: https://doi.org/10.3174/ajnr.A3547
  • Expedited Publication
    You have access
    Unruptured Carotid Artery Aneurysms Presenting with Symptoms of Mass Effect: Outcome after Selective Coiling, Parent Vessel Occlusion, and Flow Diversion
    W.J. van Rooij and M. Sluzewski
    American Journal of Neuroradiology May 2013, 34 (5) 940-941; DOI: https://doi.org/10.3174/ajnr.A3594
  • FELLOWS' JOURNAL CLUBExpedited Publication
    You have access
    Clopidogrel Hyper-Response and Bleeding Risk in Neurointerventional Procedures
    C. Goh, L. Churilov, P. Mitchell, R. Dowling and B. Yan
    American Journal of Neuroradiology April 2013, 34 (4) 721-726; DOI: https://doi.org/10.3174/ajnr.A3418

    Patients may respond to antiplatelet medication in 2 ways: resistance leading to higher incidence of ischemic events and hyper-response resulting in bleeds. Here, 47 patients treated with clopidogrel were tested for P2Y12 receptor-mediated platelet inhibition. Clopidogrel hyper-response was more common in patients with major (n=10) than in those with minor bleeds. Of 7 patients defined as hyper-responders, 43% had major bleeding complications. Thus, hyper-response to clopidogrel is associated with increased risk of major hemorrhage. (See the related article by Comin and Kallmes.)

  • Expedited Publication
    You have access
    Clopidogrel Resistance Is Associated with Thromboembolic Complications in Patients Undergoing Neurovascular Stenting
    J.T. Fifi, C. Brockington, J. Narang, W. Leesch, S.L. Ewing, H. Bennet, A. Berenstein and J. Chong
    American Journal of Neuroradiology April 2013, 34 (4) 716-720; DOI: https://doi.org/10.3174/ajnr.A3405
  • EDITOR'S CHOICEExpedited Publication
    You have access
    Pipeline Embolization Device in Aneurysmal Subarachnoid Hemorrhage
    J.P. Cruz, C. O'Kelly, M. Kelly, J.H. Wong, W. Alshaya, A. Martin, J. Spears and T.R. Marotta
    American Journal of Neuroradiology February 2013, 34 (2) 271-276; DOI: https://doi.org/10.3174/ajnr.A3380

    The authors used the Pipeline device to treat 20 patients with acutely ruptured intracranial aneurysms. The most common types of aneurysms treated were blister and dysplastic/dissecting. Procedure-related morbidity/mortality overall was 15%, and 1 death directly related to the procedure occurred. Occlusion rates were 75% and 94% at 6 months and 12 months, respectively. The authors concluded that the Pipeline device offers a feasible treatment option in acute or subacute ruptured aneurysms, especially the blister type. Ruptured giant aneurysms remain challenging for both surgical and endovascular techniques; at this stage, the Pipeline device should be used with caution in this aneurysm subtype.

  • Expedited Publication
    You have access
    Treatment of Intracranial Aneurysms Using the Pipeline Flow-Diverter Embolization Device: A Single-Center Experience with Long-Term Follow-Up Results
    I. Saatci, K. Yavuz, C. Ozer, S. Geyik and H.S. Cekirge
    American Journal of Neuroradiology September 2012, 33 (8) 1436-1446; DOI: https://doi.org/10.3174/ajnr.A3246
  • Expedited Publication
    You have access
    Safety of the Pipeline Embolization Device in Treatment of Posterior Circulation Aneurysms
    T.J. Phillips, J.D. Wenderoth, C.C. Phatouros, H. Rice, T.P. Singh, L. Devilliers, V. Wycoco, S. Meckel and W. McAuliffe
    American Journal of Neuroradiology August 2012, 33 (7) 1225-1231; DOI: https://doi.org/10.3174/ajnr.A3166

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