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Index by author

August 01, 2018; Volume 39,Issue 8

  1. Van De Ville, D.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Brain Perfusion Measurements Using Multidelay Arterial Spin-Labeling Are Systematically Biased by the Number of Delays
      M. van der Thiel, C. Rodriguez, P. Giannakopoulos, M.X. Burke, R. Marc Lebel, N. Gninenko, D. Van De Ville and S. Haller
      American Journal of Neuroradiology August 2018, 39 (8) 1432-1438; DOI: https://doi.org/10.3174/ajnr.A5717

      The authors assessed delay and transit time-uncorrected and transit time-corrected CBF maps in 87 healthy controls. Data analysis included voxelwise permutation-based between-sequence comparisons of 3-delay versus 7-delay, within-sequence comparison of transit time-uncorrected versus transit time-corrected maps, and average CBF calculations in regions that have been shown to differ. The 7-delay sequence estimated a higher CBF value than the 3-delay for the transit time-uncorrected and transit time-corrected maps in regions corresponding to the watershed areas. In the peripheral regions of the brain, the estimated delay was found to be longer for the 3-delay sequence while the inverse was found in the center of the brain. This study supports the necessity of standardizing acquisition parameters in multidelay arterial spin-labeling and identifying basic parameters as a confounding factor in CBF quantification studies.

  2. Van Westen, D.

    1. Pediatrics
      Arterial Spin-Labeling in Children with Brain Tumor: A Meta-Analysis
      A.F. Delgado, F. De Luca, P. Hanagandi, D. van Westen and A.F. Delgado
      American Journal of Neuroradiology August 2018, 39 (8) 1536-1542; DOI: https://doi.org/10.3174/ajnr.A5727

  3. Vey, B.L.

    1. Think A-Head Campaign of Image Gently: Shared Decision-Making in Pediatric Head Trauma
      N. Kadom, B.L. Vey, D.P. Frush, J.S. Broder, K.E. Applegate and Members of the Image Gently Think A-Head Campaign Committee
      American Journal of Neuroradiology August 2018, 39 (8) 1386-1389; DOI: https://doi.org/10.3174/ajnr.A5718

  4. Vidailhet, M.

    1. Adult Brain
      Open Access
      Comparative Study of MRI Biomarkers in the Substantia Nigra to Discriminate Idiopathic Parkinson Disease
      N. Pyatigorskaya, B. Magnin, M. Mongin, L. Yahia-Cherif, R. Valabregue, D. Arnaldi, C. Ewenczyk, C. Poupon, M. Vidailhet and S. Lehéricy
      American Journal of Neuroradiology August 2018, 39 (8) 1460-1467; DOI: https://doi.org/10.3174/ajnr.A5702

  5. Wager, M.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Added Value of Spectroscopy to Perfusion MRI in the Differential Diagnostic Performance of Common Malignant Brain Tumors
      A. Vallée, C. Guillevin, M. Wager, V. Delwail, R. Guillevin and J.-N. Vallée
      American Journal of Neuroradiology August 2018, 39 (8) 1423-1431; DOI: https://doi.org/10.3174/ajnr.A5725

      From January 2013 to January 2016, fifty-five consecutive patients with histopathologically proved lymphomas, glioblastomas, and metastases were included in this study after undergoing MR imaging. The perfusion parameters (maximum relative CBV, maximum percentage of signal intensity recovery) and spectroscopic concentration ratios (lactate/Cr, Cho/NAA, Cho/Cr, and lipids/Cr) were analyzed individually and in optimal combinations. The highest differential diagnostic performance was obtained with the following combined classifiers: 1) maximum percentage of signal intensity recovery-Cho/NAA to discriminate lymphomas from glioblastomas and metastases; 2) relative CBV-Cho/NAA to discriminate glioblastomas from lymphomas and metastases; and 3) maximum percentage of signal intensity recovery-lactate/Cr and maximum percentage of signal intensity recovery-Cho/Cr to discriminate metastases from lymphomas and glioblastomas. The authors conclude that spectroscopy yielded an added performance value to perfusion using optimal combined classifiers of these modalities.

  6. Wagner, F.

    1. LETTER
      Another Important Pitfall in the Diagnosis of Dural Sinus Thrombosis in Neonates
      A. Hakim and F. Wagner
      American Journal of Neuroradiology August 2018, 39 (8) E92; DOI: https://doi.org/10.3174/ajnr.A5674

  7. Walsh, J.P.

    1. LETTER
      Medullary Edema and Enhancement with a Straight Upper Border in Cases of Dural Arteriovenous Fistulas
      D. Byrne, J.P. Walsh, T. Lynch and E.C. Kavanagh
      American Journal of Neuroradiology August 2018, 39 (8) E90-E91; DOI: https://doi.org/10.3174/ajnr.A5681

  8. Wang, G.

    1. EDITOR'S CHOICEPediatrics
      The Bone Does Not Predict the Brain in Sturge-Weber Syndrome
      R.R. Warne, O.M. Carney, G. Wang, D. Bhattacharya, W.K. Chong, S.E. Aylett and K. Mankad
      American Journal of Neuroradiology August 2018, 39 (8) 1543-1549; DOI: https://doi.org/10.3174/ajnr.A5722

      MR imaging of 139 children presenting with port-wine stain and/or Sturge-Weber syndrome between 1998 and 2017 was evaluated by 2 pediatric neuroradiologists for marrow signal abnormality and pial angioma and other Sturge-Weber syndrome features. Groups were divided into port-wine stain-only (without intracranial Sturge-Weber syndrome features) and Sturge-Weber syndrome (the presence of cerebral pial angioma). In the port-wine stain-only cohort, 78% had ipsilateral bony changes and 17% had no intraosseous changes. In the Sturge-Weber syndrome cohort, 84/99 had associated port-wine stain, 91% had bony changesipsilateral to the port-wine stain or had no bone changes in the absence of port-wine stain, and 77% had bony changes ipsilateral to a cerebral pial angioma. The authors conclude that intraosseous marrow changes are strongly associated with facial port-wine stain. No significant association was found between pial angioma and bone marrow changes.

  9. Wang, K.C.

    1. Spine
      Detection of the Stellate and Thoracic Sympathetic Chain Ganglia with High-Resolution 3D-CISS MR Imaging
      A. Chaudhry, A. Kamali, D.A. Herzka, K.C. Wang, J.A. Carrino and A.M. Blitz
      American Journal of Neuroradiology August 2018, 39 (8) 1550-1554; DOI: https://doi.org/10.3174/ajnr.A5698

  10. Wang, M.

    1. Head & Neck
      Open Access
      Application of Reduced-FOV Diffusion-Weighted Imaging in Evaluation of Normal Pituitary Glands and Pituitary Macroadenomas
      M. Wang, H. Liu, X. Wei, C. Liu, T. Liang, X. Zhang, C. Jin, X. Li, Q. Sun, H. Jiang and J. Yang
      American Journal of Neuroradiology August 2018, 39 (8) 1499-1504; DOI: https://doi.org/10.3174/ajnr.A5735
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