American Journal of Neuroradiology: 40 (11)

Index by author

November 01, 2019; Volume 40,Issue 11

Nariai, T.
1. Adult Brain
  
  Open Access
  Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with ¹⁵O-Gas PET and Singular Value Decomposition
  S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
  
  American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Ngamsombat, C.
1. Adult Brain
  
  Open Access
  Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
  F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
  
  American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Nicolas, N.
1. FELLOWS' JOURNAL CLUBPediatrics
  
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  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.
Nietert, P.J.
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.
Nummenmaa, A.
1. Adult Brain
  
  Open Access
  Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
  F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
  
  American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Ocal, O.
1. Interventional
  
  You have access
  Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates
  O. Ocal, A. Peker, S. Balci and A. Arat
  
  American Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
Olson, J.M.
1. Pediatrics
  
  Open Access
  MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
  A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
  
  American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Orbach, D.B.
1. EDITOR'S CHOICEPediatrics
  
  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.
Otto, B.J.
1. Spine
  
  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
Packer, R.J.
1. Pediatrics
  
  Open Access
  MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
  A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
  
  American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253

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American Journal of Neuroradiology

Index by author

Nariai, T.

Ngamsombat, C.

Nicolas, N.

Nietert, P.J.

Nummenmaa, A.

Ocal, O.

Olson, J.M.

Orbach, D.B.

Otto, B.J.

Packer, R.J.

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