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Index by author

June 01, 2018; Volume 39,Issue 6

  1. Kalpathy-cramer, J.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Multisite Concordance of DSC-MRI Analysis for Brain Tumors: Results of a National Cancer Institute Quantitative Imaging Network Collaborative Project
      K.M. Schmainda, M.A. Prah, S.D. Rand, Y. Liu, B. Logan, M. Muzi, S.D. Rane, X. Da, Y.-F. Yen, J. Kalpathy-Cramer, T.L. Chenevert, B. Hoff, B. Ross, Y. Cao, M.P. Aryal, B. Erickson, P. Korfiatis, T. Dondlinger, L. Bell, L. Hu, P.E. Kinahan and C.C. Quarles
      American Journal of Neuroradiology June 2018, 39 (6) 1008-1016; DOI: https://doi.org/10.3174/ajnr.A5675

      DSC-MR imaging data were collected after a preload and during a bolus injection of gadolinium contrast agent using a gradient recalled-echo-EPI sequence. Forty-nine low-grade and high-grade glioma datasets were uploaded to The Cancer Imaging Archive. Datasets included a predetermined arterial input function, enhancing tumor ROIs, and ROIs necessary to create normalized relative CBV and CBF maps. Seven sites computed 20 different perfusion metrics. For normalized relative CBV and normalized CBF, 93% and 94% of entries showed good or excellent cross-site agreement. All metrics could distinguish low- from high-grade tumors.

  2. Kalsoum, E.

    1. Adult Brain
      Blood Flow Mimicking Aneurysmal Wall Enhancement: A Diagnostic Pitfall of Vessel Wall MRI Using the Postcontrast 3D Turbo Spin-Echo MR Imaging Sequence
      E. Kalsoum, A. Chabernaud Negrier, T. Tuilier, A. Benaïssa, R. Blanc, S. Gallas, J.-P. Lefaucheur, A. Gaston, R. Lopes, P. Brugières and J. Hodel
      American Journal of Neuroradiology June 2018, 39 (6) 1065-1067; DOI: https://doi.org/10.3174/ajnr.A5616

  3. Kannu, P.

    1. EDITOR'S CHOICEPediatrics
      Characteristic MR Imaging Findings of the Neonatal Brain in RASopathies
      M.N. Cizmeci, M. Lequin, K.D. Lichtenbelt, D. Chitayat, P. Kannu, A.G. James, F. Groenendaal, E. Chakkarapani, S. Blaser and L.S. de Vries
      American Journal of Neuroradiology June 2018, 39 (6) 1146-1152; DOI: https://doi.org/10.3174/ajnr.A5611

      An observational case-control study of neonates with a confirmed RASopathy was conducted. The authors reviewed 48 brain MR studies performed at 3 academic centers in 3 countries between 2009 and 2017. Sixteen of these infants had a genetically confirmed RASopathy (group 1), and 32 healthy infants were enrolled as the control group (group 2). An increased rate of white matter lesions, extracerebral space enlargement, simplification of the cortical gyrification, and white matter abnormalities were seen in group 1. The vermis height of patients was significantly lower, and tentorial and infratentorial angles were significantly higher in group 1. Neonates with a RASopathy had characteristic structural and acquired abnormalities in the cortical gray matter, white matter, corpus callosum, cerebellum, and posterior fossa.

  4. Kantarci, O.H.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Dark Rims: Novel Sequence Enhances Diagnostic Specificity in Multiple Sclerosis
      J.-M. Tillema, S.D. Weigand, M. Dayan, Y. Shu, O.H. Kantarci, C.F. Lucchinetti and J.D. Port
      American Journal of Neuroradiology June 2018, 39 (6) 1052-1058; DOI: https://doi.org/10.3174/ajnr.A5636

      The authors compared WM lesions in a group of patients with multiple sclerosis and in a second group of positive controls with white matter lesions who did not have a diagnosis of MS. The presence of a rim on the gray matter-double inversion recovery MR imaging sequence was combined with the 2001 and 2010 McDonald disseminated-in-space criteria. Multiple MR imaging markers, including lesion location, size, and the presence of a rim, were compared between groups as well as a quantitative measure of lesion T1 hypointensity. MR images from 107 patients with relapsing-remitting MS and 36 positive control subjects were analyzed. In patients with MS, 1120/3211 lesions (35%) had a rim on GM-double inversion recovery; the positive control group had only 9/893 rim lesions (1%). The addition of a novel GM-double inversion recovery technique enhanced specificity for diagnosing MS compared with established MR imaging criteria.

  5. Kapaki, E.

    1. Adult Brain
      MRI Planimetry and Magnetic Resonance Parkinsonism Index in the Differential Diagnosis of Patients with Parkinsonism
      V.C. Constantinides, G.P. Paraskevas, G. Velonakis, P. Toulas, E. Stamboulis and E. Kapaki
      American Journal of Neuroradiology June 2018, 39 (6) 1047-1051; DOI: https://doi.org/10.3174/ajnr.A5618

  6. Karunamuni, R.

    1. Adult Brain
      Open Access
      Edge Contrast of the FLAIR Hyperintense Region Predicts Survival in Patients with High-Grade Gliomas following Treatment with Bevacizumab
      N. Bahrami, D. Piccioni, R. Karunamuni, Y.-H. Chang, N. White, R. Delfanti, T.M. Seibert, J.A. Hattangadi-Gluth, A. Dale, N. Farid and C.R. McDonald
      American Journal of Neuroradiology June 2018, 39 (6) 1017-1024; DOI: https://doi.org/10.3174/ajnr.A5620

  7. Katorza, E.

    1. Pediatrics
      Volumetric Brain MRI Study in Fetuses with Congenital Heart Disease
      H. Olshaker, R. Ber, D. Hoffman, E. Derazne, R. Achiron and E. Katorza
      American Journal of Neuroradiology June 2018, 39 (6) 1164-1169; DOI: https://doi.org/10.3174/ajnr.A5628

  8. Katramados, A.

    1. Spine
      CSF Pressure Change in Relation to Opening Pressure and CSF Volume Removed
      B. Griffith, T. Capobres, S.C. Patel, H. Marin, A. Katramados and L.M. Poisson
      American Journal of Neuroradiology June 2018, 39 (6) 1185-1190; DOI: https://doi.org/10.3174/ajnr.A5642

  9. Khalessi, A.A.

    1. Multisociety Consensus Quality Improvement Revised Consensus Statement for Endovascular Therapy of Acute Ischemic Stroke
      From the American Association of Neurological Surgeons (AANS), American Society of Neuroradiology (ASNR), Cardiovascular and Interventional Radiology Society of Europe (CIRSE), Canadian Interventional Radiology Association (CIRA), Congress of Neurological Surgeons (CNS), European Society of Minimally Invasive Neurological Therapy (ESMINT), European Society of Neuroradiology (ESNR), European Stroke Organization (ESO), Society for Cardiovascular Angiography and Interventions (SCAI), Society of Interventional Radiology (SIR), Society of NeuroInterventional Surgery (SNIS), and World Stroke Organization (WSO), D. Sacks, B. Baxter, B.C.V. Campbell, J.S. Carpenter, C. Cognard, D. Dippel, M. Eesa, U. Fischer, K. Hausegger, J.A. Hirsch, M.S. Hussain, O. Jansen, M.V. Jayaraman, A.A. Khalessi, B.W. Kluck, S. Lavine, P.M. Meyers, S. Ramee, D.A. Rüfenacht, C.M. Schirmer and D. Vorwerk
      American Journal of Neuroradiology June 2018, 39 (6) E61-E76; DOI: https://doi.org/10.3174/ajnr.A5638

  10. Khamis, A.M.

    1. REPLY:
      C.E. Al-Haddad, M.G. Sebaaly, R.N. Tutunji, C.J. Mehanna, S.R. Saaybi, A.M. Khamis and R.G. Hourani
      American Journal of Neuroradiology June 2018, 39 (6) E81; DOI: https://doi.org/10.3174/ajnr.A5647
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