Index by author
Dhall, S.S.
- Spine Imaging and Spine Image-Guided InterventionsOpen AccessMultivariate Analysis of MRI Biomarkers for Predicting Neurologic Impairment in Cervical Spinal Cord InjuryJ. Haefeli, M.C. Mabray, W.D. Whetstone, S.S. Dhall, J.Z. Pan, P. Upadhyayula, G.T. Manley, J.C. Bresnahan, M.S. Beattie, A.R. Ferguson and J.F. TalbottAmerican Journal of Neuroradiology March 2017, 38 (3) 648-655; DOI: https://doi.org/10.3174/ajnr.A5021
Doddasomayajula, R.
- NeurointerventionYou have accessDifferences in Hemodynamics and Rupture Rate of Aneurysms at the Bifurcation of the Basilar and Internal Carotid ArteriesR. Doddasomayajula, B. Chung, F. Hamzei-Sichani, C.M. Putman and J.R. CebralAmerican Journal of Neuroradiology March 2017, 38 (3) 570-576; DOI: https://doi.org/10.3174/ajnr.A5088
Doerfler, A.
- NeurointerventionYou have accessFRED Flow Diverter: A Study on Safety and Efficacy in a Consecutive Group of 50 PatientsH. Luecking, T. Engelhorn, S. Lang, P. Goelitz, S. Kloska, K. Roessler and A. DoerflerAmerican Journal of Neuroradiology March 2017, 38 (3) 596-602; DOI: https://doi.org/10.3174/ajnr.A5052
Duering, M.
- ADULT BRAINOpen AccessLower Magnetization Transfer Ratio in the Forceps Minor Is Associated with Poorer Gait Velocity in Older AdultsS. Seiler, L. Pirpamer, B. Gesierich, E. Hofer, M. Duering, D. Pinter, E. Jouvent, F. Fazekas, J.-F. Mangin, H. Chabriat, S. Ropele and R. SchmidtAmerican Journal of Neuroradiology March 2017, 38 (3) 500-506; DOI: https://doi.org/10.3174/ajnr.A5036
Dwyer, D.C.
- You have accessGenetics of Von Hippel-Lindau DiseaseD.C. Dwyer and R.K. TuAmerican Journal of Neuroradiology March 2017, 38 (3) 469-470; DOI: https://doi.org/10.3174/ajnr.A5032
Ellingson, B.M.
- FELLOWS' JOURNAL CLUBADULT BRAINYou have accessEffects of MRI Protocol Parameters, Preload Injection Dose, Fractionation Strategies, and Leakage Correction Algorithms on the Fidelity of Dynamic-Susceptibility Contrast MRI Estimates of Relative Cerebral Blood Volume in GliomasK. Leu, J.L. Boxerman and B.M. EllingsonAmerican Journal of Neuroradiology March 2017, 38 (3) 478-484; DOI: https://doi.org/10.3174/ajnr.A5027
The authors used DSC-MR imaging simulations to examine the influence of various acquisition parameters and leakage-correction strategies on the faithful estimation of CBV. Optimal strategies were determined by protocol with the lowest mean error. They conclude that the choice of image acquisition and preload dosing and/or fractionation has tremendous impact on the fidelity of CBV estimation. A variety of acquisition strategies can be used to obtain similar accuracy of CBV estimation, while the bidirectional leakage-correction algorithm aids in minimizing errors in CBV estimation under all scenarios.
- EDITOR'S CHOICEADULT BRAINOpen AccessEvaluation of Encephaloduroarteriosynangiosis Efficacy Using Probabilistic Independent Component Analysis Applied to Dynamic Susceptibility Contrast Perfusion MRIA.N. Laiwalla, F. Kurth, K. Leu, R. Liou, J. Pamplona, Y.C. Ooi, N. Salamon, B.M. Ellingson and N.R. GonzalezAmerican Journal of Neuroradiology March 2017, 38 (3) 507-514; DOI: https://doi.org/10.3174/ajnr.A5041
In this prospective study, 13 patients underwent unilateral indirect cerebral revascularization and DSC-MR imaging before and after surgery. Conventional perfusion parameters (relative CBV, relative CBF, and TTP) and probabilistic independent components that reflect the relative contributions of DSC signals consistent with arterial, capillary, and venous hemodynamics were calculated and examined for significant changes after surgery. Before surgery, tissue within the affected hemisphere demonstrated a high probability for hemodynamics consistent with venous flow and a low probability for hemodynamics consistent with arterial flow, whereas the contralateral control hemisphere demonstrated the reverse. Consistent with symptomatic improvement, the probability for venous hemodynamics within the affected hemisphere decreased with time after surgery. The authors conclude that probabilistic independent component analysis yielded sensitive measurements of changes in local tissue perfusion that may be associated with newly formed vasculature after indirect cerebral revascularization surgery
Engelhorn, T.
- NeurointerventionYou have accessFRED Flow Diverter: A Study on Safety and Efficacy in a Consecutive Group of 50 PatientsH. Luecking, T. Engelhorn, S. Lang, P. Goelitz, S. Kloska, K. Roessler and A. DoerflerAmerican Journal of Neuroradiology March 2017, 38 (3) 596-602; DOI: https://doi.org/10.3174/ajnr.A5052
Ermani, M.
- ADULT BRAINOpen AccessBasilar Artery Changes in Fabry DiseaseR. Manara, R.Y. Carlier, S. Righetto, V. Citton, G. Locatelli, F. Colas, M. Ermani, D.P. Germain and A. BurlinaAmerican Journal of Neuroradiology March 2017, 38 (3) 531-536; DOI: https://doi.org/10.3174/ajnr.A5069
Evans, A.J.
- EDITOR'S CHOICENeurointerventionOpen AccessHydrogel versus Bare Platinum Coils in Patients with Large or Recurrent Aneurysms Prone to Recurrence after Endovascular Treatment: A Randomized Controlled TrialJ. Raymond, R. Klink, M. Chagnon, S.L. Barnwell, A.J. Evans, J. Mocco, B.H. Hoh, A.S. Turk, R.D. Turner, H. Desal, D. Fiorella, S. Bracard, A. Weill, F. Guilbert, S. Lanthier, A.J. Fox, T.E. Darsaut, P.M. White and D. RoyAmerican Journal of Neuroradiology March 2017, 38 (3) 432-441; DOI: https://doi.org/10.3174/ajnr.A5101
This Level 1 expedited report was a pragmatic, multicenter, parallel, randomized (1:1) trial evaluating patients who were at high risk of aneurysm recurrence after endovascular treatment, including patients with large aneurysms (Patients Prone to Recurrence After Endovascular Treatment PRET-1) or with aneurysms that had previously recurred after coiling (PRET-2). The trial was stopped once 250 patients in PRET-1 and 197 in PRET-2 had been recruited because of slow accrual. A poor primary outcome occurred in 44.4% of those in PRET-1 allocated to platinum compared with 52.5% of patients allocated to hydrogel and in 49.0% in PRET-2 allocated to platinum compared with 42.1% allocated to hydrogel. Adverse events and morbidity were similar. The authors conclude that coiling of large and recurrent aneurysms is safe but often poorly effective according to angiographic results. Hydrogel coiling was not shown to be better than platinum.
Ezekiel, F.
- ADULT BRAINOpen AccessToward Precision and Reproducibility of Diffusion Tensor Imaging: A Multicenter Diffusion Phantom and Traveling Volunteer StudyE.M. Palacios, A.J. Martin, M.A. Boss, F. Ezekiel, Y.S. Chang, E.L. Yuh, M.J. Vassar, D.M. Schnyer, C.L. MacDonald, K.L. Crawford, A. Irimia, A.W. Toga and P. MukherjeeAmerican Journal of Neuroradiology March 2017, 38 (3) 537-545; DOI: https://doi.org/10.3174/ajnr.A5025
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