American Journal of Neuroradiology: 41 (9)

Index by author

September 01, 2020; Volume 41,Issue 9

Storey, P.
1. Adult Brain
  
  Open Access
  MR Susceptibility Imaging with a Short TE (MR-SISET): A Clinically Feasible Technique to Resolve Thalamic Nuclei
  S. Chung, P. Storey, T.M. Shepherd and Y.W. Lui
  
  American Journal of Neuroradiology September 2020, 41 (9) 1629-1631; DOI: https://doi.org/10.3174/ajnr.A6683
Sudarshana, D.M.
1. EDITOR'S CHOICEAdult Brain
  
  Open Access
  Manganese-Enhanced MRI in Patients with Multiple Sclerosis
  D.J. Suto, G. Nair, D.M. Sudarshana, S.U. Steele, J. Dwyer, E.S. Beck, J. Ohayon, H. McFarland, A.P. Koretsky, I.C.M. Cortese and D.S. Reich
  
  American Journal of Neuroradiology September 2020, 41 (9) 1569-1576; DOI: https://doi.org/10.3174/ajnr.A6665
  
  Mangafodipir is a manganese chelate that was clinically approved for MR imaging of liver lesions. The authors present a case series of 6 adults with multiple sclerosis who were scanned at baseline with gadolinium, then injected with mangafodipir, and followed at variable time points. Fourteen new lesions formed during or shortly before the study, of which 10 demonstrated manganese enhancement of varying intensity, timing, and spatial pattern. One gadolinium-enhancing extra-axial mass, presumably a meningioma, also demonstrated enhancement with manganese. Manganese enhancement was detected in lesions that formed in the days after mangafodipir injection, and this enhancement persisted for several weeks. They conclude that multiple sclerosis lesions were enhanced with a temporal and spatial profile distinct from that of gadolinium.
Suh, C.H.
1. Head & Neck
  
  You have access
  Diagnostic Accuracy of MRI-Based Morphometric Parameters for Detecting Olfactory Nerve Dysfunction
  M.K. Lee, J.H. Lee, J.H. Kim, H. Kim, L. Joo, M. Kim, S.J. Cho, C.H. Suh, S.R. Chung, Y.J. Choi and J.H. Baek
  
  American Journal of Neuroradiology September 2020, 41 (9) 1698-1702; DOI: https://doi.org/10.3174/ajnr.A6697
Suto, D.J.
1. EDITOR'S CHOICEAdult Brain
  
  Open Access
  Manganese-Enhanced MRI in Patients with Multiple Sclerosis
  D.J. Suto, G. Nair, D.M. Sudarshana, S.U. Steele, J. Dwyer, E.S. Beck, J. Ohayon, H. McFarland, A.P. Koretsky, I.C.M. Cortese and D.S. Reich
  
  American Journal of Neuroradiology September 2020, 41 (9) 1569-1576; DOI: https://doi.org/10.3174/ajnr.A6665
  
  Mangafodipir is a manganese chelate that was clinically approved for MR imaging of liver lesions. The authors present a case series of 6 adults with multiple sclerosis who were scanned at baseline with gadolinium, then injected with mangafodipir, and followed at variable time points. Fourteen new lesions formed during or shortly before the study, of which 10 demonstrated manganese enhancement of varying intensity, timing, and spatial pattern. One gadolinium-enhancing extra-axial mass, presumably a meningioma, also demonstrated enhancement with manganese. Manganese enhancement was detected in lesions that formed in the days after mangafodipir injection, and this enhancement persisted for several weeks. They conclude that multiple sclerosis lesions were enhanced with a temporal and spatial profile distinct from that of gadolinium.
Tanaka, Y.
1. EDITOR'S CHOICEAdult Brain
  
  Open Access
  Myelin and Axonal Damage in Normal-Appearing White Matter in Patients with Moyamoya Disease
  S. Hara, M. Hori, A. Hagiwara, Y. Tsurushima, Y. Tanaka, T. Maehara, S. Aoki and T. Nariai
  
  American Journal of Neuroradiology September 2020, 41 (9) 1618-1624; DOI: https://doi.org/10.3174/ajnr.A6708
  
  Eighteen patients with Moyamoya disease (16–55 years of age) and 18 age- and sex-matched healthy controls were evaluated with myelin-sensitive MR imaging based on magnetization transfer saturation imaging and 2-shell diffusion MR imaging. The myelin volume fraction, which reflects the amount of myelin sheath; the g-ratio, which represents the ratio of the inner (axon) to the outer (axon plus myelin) diameter of the fiber; and the axon volume fraction, which reflects axonal components, were calculated and compared between the patients and controls. Compared with the healthy controls, the patients with Moyamoya disease showed a significant decrease in the myelin and axon volume fractions in many WM regions, while the increases in the g-ratio values were not statistically significant. Correlations with cognitive performance were most frequently observed with the axon volume fraction. The authors conclude that the relationship with cognitive performance might be stronger with axonal damage than with myelin damage.
Tay, Y.-K.D.
1. Head & Neck
  
  You have access
  A Simple Formula to Estimate Parathyroid Weight on 4D-CT, Predict Pathologic Weight, and Diagnose Parathyroid Adenoma in Patients with Primary Hyperparathyroidism
  R. Yeh, Y.-K.D. Tay, L. Dercle, L. Bandeira, M.R. Parekh and J.P. Bilezikian
  
  American Journal of Neuroradiology September 2020, 41 (9) 1690-1697; DOI: https://doi.org/10.3174/ajnr.A6687
Taylor, M.D.
1. EDITOR'S CHOICEPediatrics
  
  You have access
  Deep Learning for Pediatric Posterior Fossa Tumor Detection and Classification: A Multi-Institutional Study
  J.L. Quon, W. Bala, L.C. Chen, J. Wright, L.H. Kim, M. Han, K. Shpanskaya, E.H. Lee, E. Tong, M. Iv, J. Seekins, M.P. Lungren, K.R.M. Braun, T.Y. Poussaint, S. Laughlin, M.D. Taylor, R.M. Lober, H. Vogel, P.G. Fisher, G.A. Grant, V. Ramaswamy, N.A. Vitanza, C.Y. Ho, M.S.B. Edwards, S.H. Cheshier and K.W. Yeom
  
  American Journal of Neuroradiology September 2020, 41 (9) 1718-1725; DOI: https://doi.org/10.3174/ajnr.A6704
  
  This study cohort comprised 617 children (median age, 92 months; 56% males) from 5 pediatric institutions with posterior fossa tumors: diffuse midline glioma of the pons, medulloblastoma, pilocytic astrocytoma, and ependymoma. There were 199 controls. Tumor histology served as ground truth except for diffuse midline glioma of the pons, which was primarily diagnosed by MR imaging. A modified ResNeXt-50-32x4d architecture served as the backbone for a multitask classifier model, using T2-weighted MRI as input to detect the presence of tumor and predict tumor class. Model tumor detection accuracy exceeded an AUC of 0.99 and was similar to that of 4 radiologists. Model tumor classification accuracy was 92% with an F1 score of 0.80. The model was most accurate at predicting diffuse midline glioma of the pons, followed by pilocytic astrocytoma and medulloblastoma. Ependymoma prediction was the least accurate.
Tian, W.
1. Spine
  
  Open Access
  The Evaluation and Prediction of Laminoplasty Surgery Outcome in Patients with Degenerative Cervical Myelopathy Using Diffusion Tensor MRI
  X. Han, X. Ma, D. Li, J. Wang, W. Jiang, X. Cheng, G. Li, H. Guo and W. Tian
  
  American Journal of Neuroradiology September 2020, 41 (9) 1745-1753; DOI: https://doi.org/10.3174/ajnr.A6705
Toh, C.H.
1. Adult Brain
  
  Open Access
  MRS as an Aid to Diagnose Malignant Transformation in Low-Grade Gliomas with Increasing Contrast Enhancement
  C.H. Toh, M. Castillo, K.-C. Wei and P.-Y. Chen
  
  American Journal of Neuroradiology September 2020, 41 (9) 1592-1598; DOI: https://doi.org/10.3174/ajnr.A6688
Tonetti, D.A.
1. Interventional
  
  You have access
  Emergent Premedication for Contrast Allergy Prior to Endovascular Treatment of Acute Ischemic Stroke
  D.A. Tonetti, S.M. Desai, A. Morrison, B.A. Gross, T.G. Jovin, B.T. Jankowitz and A.P. Jadhav
  
  American Journal of Neuroradiology September 2020, 41 (9) 1647-1651; DOI: https://doi.org/10.3174/ajnr.A6720

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American Journal of Neuroradiology

Index by author

Storey, P.

Sudarshana, D.M.

Suh, C.H.

Suto, D.J.

Tanaka, Y.

Tay, Y.-K.D.

Taylor, M.D.

Tian, W.

Toh, C.H.

Tonetti, D.A.

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