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Index by author

January 01, 2018; Volume 39,Issue 1

  1. Ma, A.Y.

    1. Adult Brain
      Open Access
      Spatial Correlation of Pathology and Perfusion Changes within the Cortex and White Matter in Multiple Sclerosis
      A.D. Mulholland, R. Vitorino, S.-P. Hojjat, A.Y. Ma, L. Zhang, L. Lee, T.J. Carroll, C.G. Cantrell, C.R. Figley and R.I. Aviv
      American Journal of Neuroradiology January 2018, 39 (1) 91-96; DOI: https://doi.org/10.3174/ajnr.A5410

  2. Magnano, C.

    1. Extracranial Vascular
      Open Access
      Lower Arterial Cross-Sectional Area of Carotid and Vertebral Arteries and Higher Frequency of Secondary Neck Vessels Are Associated with Multiple Sclerosis
      P. Belov, D. Jakimovski, J. Krawiecki, C. Magnano, J. Hagemeier, L. Pelizzari, B. Weinstock-Guttman and R. Zivadinov
      American Journal of Neuroradiology January 2018, 39 (1) 123-130; DOI: https://doi.org/10.3174/ajnr.A5469

  3. Mahdjoub, E.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Do Fluid-Attenuated Inversion Recovery Vascular Hyperintensities Represent Good Collaterals before Reperfusion Therapy?
      E. Mahdjoub, G. Turc, L. Legrand, J. Benzakoun, M. Edjlali, P. Seners, S. Charron, W. Ben Hassen, O. Naggara, J.-F. Meder, J.-L. Mas, J.-C. Baron and C. Oppenheim
      American Journal of Neuroradiology January 2018, 39 (1) 77-83; DOI: https://doi.org/10.3174/ajnr.A5431

      The authors evaluated 244 consecutive patients eligible for reperfusion therapy with MCA stroke and pretreatment MR imaging with both FLAIR and PWI. The FLAIR vascular hyperintensity score was based on ASPECTS, ranging from 0 (no FLAIR vascular hyperintensity) to 7 (FLAIR vascular hyperintensities abutting all ASPECTS cortical areas). The hypoperfusion intensity ratio was defined as the ratio of the time-to-maximum >10-second over time-to-maximum >6-second lesion volumes. The FLAIR vascular hyperintensities were more extensive in patients with good collaterals than those with poor collaterals. The FLAIR vascular hyperintensity score was independently associated with good collaterals. They conclude that the ASPECTS assessment of FLAIR vascular hyperintensities could be used to rapidly identify patients more likely to benefit from reperfusion therapy.

  4. Manduca, A.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      MR Elastography Analysis of Glioma Stiffness and IDH1-Mutation Status
      K.M. Pepin, K.P. McGee, A. Arani, D.S. Lake, K.J. Glaser, A. Manduca, I.F. Parney, R.L. Ehman and J. Huston
      American Journal of Neuroradiology January 2018, 39 (1) 31-36; DOI: https://doi.org/10.3174/ajnr.A5415

      Tumor stiffness properties were prospectively quantified in 18 patients with histologically proved gliomas using MR elastography. Images were acquired on a 3T MR imaging unit with a vibration frequency of 60 Hz. Tumor stiffness was compared with unaffected contralateral white matter, across tumor grade, and by IDH1-mutation status. Gliomas were softer than healthy brain parenchyma, 2.2kPa compared with 3.3kPa, with grade IV tumors softer than grade II. MR elastography demonstrated that not only were gliomas softer than normal brain but the degree of softening was directly correlated with tumor grade and IDH1-mutation status.

  5. Marcillo, A.

    1. Peripheral Nervous System
      Gadolinium DTPA Enhancement Characteristics of the Rat Sciatic Nerve after Crush Injury at 4.7T
      B.J. Hill, K.R. Padgett, V. Kalra, A. Marcillo, B. Bowen, P. Pattany, D. Dietrich and R. Quencer
      American Journal of Neuroradiology January 2018, 39 (1) 177-183; DOI: https://doi.org/10.3174/ajnr.A5437

  6. Martin, B.

    1. Head and Neck Imaging
      Patterns of Sonographically Detectable Echogenic Foci in Pediatric Thyroid Carcinoma with Corresponding Histopathology: An Observational Study
      I. Erdem Toslak, B. Martin, G.A. Barkan, A.I. Kılıç and J.E. Lim-Dunham
      American Journal of Neuroradiology January 2018, 39 (1) 156-161; DOI: https://doi.org/10.3174/ajnr.A5419

  7. Mas, J.-L.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Do Fluid-Attenuated Inversion Recovery Vascular Hyperintensities Represent Good Collaterals before Reperfusion Therapy?
      E. Mahdjoub, G. Turc, L. Legrand, J. Benzakoun, M. Edjlali, P. Seners, S. Charron, W. Ben Hassen, O. Naggara, J.-F. Meder, J.-L. Mas, J.-C. Baron and C. Oppenheim
      American Journal of Neuroradiology January 2018, 39 (1) 77-83; DOI: https://doi.org/10.3174/ajnr.A5431

      The authors evaluated 244 consecutive patients eligible for reperfusion therapy with MCA stroke and pretreatment MR imaging with both FLAIR and PWI. The FLAIR vascular hyperintensity score was based on ASPECTS, ranging from 0 (no FLAIR vascular hyperintensity) to 7 (FLAIR vascular hyperintensities abutting all ASPECTS cortical areas). The hypoperfusion intensity ratio was defined as the ratio of the time-to-maximum >10-second over time-to-maximum >6-second lesion volumes. The FLAIR vascular hyperintensities were more extensive in patients with good collaterals than those with poor collaterals. The FLAIR vascular hyperintensity score was independently associated with good collaterals. They conclude that the ASPECTS assessment of FLAIR vascular hyperintensities could be used to rapidly identify patients more likely to benefit from reperfusion therapy.

  8. Mcgee, K.P.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      MR Elastography Analysis of Glioma Stiffness and IDH1-Mutation Status
      K.M. Pepin, K.P. McGee, A. Arani, D.S. Lake, K.J. Glaser, A. Manduca, I.F. Parney, R.L. Ehman and J. Huston
      American Journal of Neuroradiology January 2018, 39 (1) 31-36; DOI: https://doi.org/10.3174/ajnr.A5415

      Tumor stiffness properties were prospectively quantified in 18 patients with histologically proved gliomas using MR elastography. Images were acquired on a 3T MR imaging unit with a vibration frequency of 60 Hz. Tumor stiffness was compared with unaffected contralateral white matter, across tumor grade, and by IDH1-mutation status. Gliomas were softer than healthy brain parenchyma, 2.2kPa compared with 3.3kPa, with grade IV tumors softer than grade II. MR elastography demonstrated that not only were gliomas softer than normal brain but the degree of softening was directly correlated with tumor grade and IDH1-mutation status.

  9. Meder, J.-F.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      Do Fluid-Attenuated Inversion Recovery Vascular Hyperintensities Represent Good Collaterals before Reperfusion Therapy?
      E. Mahdjoub, G. Turc, L. Legrand, J. Benzakoun, M. Edjlali, P. Seners, S. Charron, W. Ben Hassen, O. Naggara, J.-F. Meder, J.-L. Mas, J.-C. Baron and C. Oppenheim
      American Journal of Neuroradiology January 2018, 39 (1) 77-83; DOI: https://doi.org/10.3174/ajnr.A5431

      The authors evaluated 244 consecutive patients eligible for reperfusion therapy with MCA stroke and pretreatment MR imaging with both FLAIR and PWI. The FLAIR vascular hyperintensity score was based on ASPECTS, ranging from 0 (no FLAIR vascular hyperintensity) to 7 (FLAIR vascular hyperintensities abutting all ASPECTS cortical areas). The hypoperfusion intensity ratio was defined as the ratio of the time-to-maximum >10-second over time-to-maximum >6-second lesion volumes. The FLAIR vascular hyperintensities were more extensive in patients with good collaterals than those with poor collaterals. The FLAIR vascular hyperintensity score was independently associated with good collaterals. They conclude that the ASPECTS assessment of FLAIR vascular hyperintensities could be used to rapidly identify patients more likely to benefit from reperfusion therapy.

  10. Meijerman, A.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Reproducibility of Deep Gray Matter Atrophy Rate Measurement in a Large Multicenter Dataset
      A. Meijerman, H. Amiri, M.D. Steenwijk, M.A. Jonker, R.A. van Schijndel, K.S. Cover and H. Vrenken for the Alzheimer's Disease Neuroimaging Initiative
      American Journal of Neuroradiology January 2018, 39 (1) 46-53; DOI: https://doi.org/10.3174/ajnr.A5459

      The authors assessedthereproducibilityof2automatedsegmentationsoftwarepackages(FreeSurferandthe FMRIB Integrated Registration and Segmentation Tool) by quantifying the volume changes of deep GM structures by using back-to-back MR imaging scans from the Alzheimer Disease Neuroimaging Initiative's multicenter dataset in 562 subjects. Back-to-back differences in 1-year percentage volume change were approximately 1.5–3.5 times larger than the mean measured 1-year volume change of those structures. They conclude that longitudinal deep GM atrophy measures should be interpreted with caution and that deep GM atrophy measurement techniques require substantially improved reproducibility, specifically when aiming for personalized medicine.

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