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AJNR Awards, New Junior Editors, and more. Read the latest AJNR updates


Improved Turnaround Times | Median time to first decision: 12 days

Index by author

November 01, 2019; Volume 40,Issue 11
  • A
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  1. Gagoski, B.

    1. EDITOR'S CHOICEPediatric Neuroimaging
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  2. Ganesh, H.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  3. Gao, S.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  4. Gautam, A.

    1. Pediatric Neuroimaging
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  5. George, M.S.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  6. Goschzik, T.

    1. Pediatric Neuroimaging
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  7. Grant, P.E.

    1. EDITOR'S CHOICEPediatric Neuroimaging
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  8. Grayev, A.M.

    1. Spine Imaging and Spine Image-Guided Interventions
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
  9. Grevent, D.

    1. FELLOWS' JOURNAL CLUBPediatric Neuroimaging
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  10. Groenendaal, F.

    1. Pediatric Neuroimaging
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
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American Journal of Neuroradiology: 40 (11)
American Journal of Neuroradiology
Vol. 40, Issue 11
1 Nov 2019
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