Index by author
Ramasamy, D.
- Adult BrainYou have accessImpact of Focal White Matter Damage on Localized Subcortical Gray Matter Atrophy in Multiple Sclerosis: A 5-Year StudyT.A. Fuchs, K. Carolus, R.H.B. Benedict, N. Bergsland, D. Ramasamy, D. Jakimovski, B. Weinstock-Guttman, A. Kuceyeski, R. Zivadinov and M.G. DwyerAmerican Journal of Neuroradiology August 2018, 39 (8) 1480-1486; DOI: https://doi.org/10.3174/ajnr.A5720
Rodriguez, C.
- EDITOR'S CHOICEAdult BrainOpen AccessBrain Perfusion Measurements Using Multidelay Arterial Spin-Labeling Are Systematically Biased by the Number of DelaysM. van der Thiel, C. Rodriguez, P. Giannakopoulos, M.X. Burke, R. Marc Lebel, N. Gninenko, D. Van De Ville and S. HallerAmerican 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.
Rudko, D.A.
- Adult BrainOpen AccessMorphology-Specific Discrimination between MS White Matter Lesions and Benign White Matter Hyperintensities Using Ultra-High-Field MRIZ. Hosseini, J. Matusinec, D.A. Rudko, J. Liu, B.Y.M. Kwan, F. Salehi, M. Sharma, M. Kremenchutzky, R.S. Menon and M. DrangovaAmerican Journal of Neuroradiology August 2018, 39 (8) 1473-1479; DOI: https://doi.org/10.3174/ajnr.A5705
Rutherford, M.A.
- PediatricsOpen AccessNeurodevelopmental Correlates of Fetal Motor Behavior Assessed Using Cine MR ImagingT.T.A. Hayat, M. Martinez-Biarge, V. Kyriakopoulou, J.V. Hajnal and M.A. RutherfordAmerican Journal of Neuroradiology August 2018, 39 (8) 1519-1522; DOI: https://doi.org/10.3174/ajnr.A5694