Index by author
De Vries, L.S.
- Pediatric NeuroimagingOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
Easter, L.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Eckel, L.
- Pediatric NeuroimagingYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Eckert, M.A.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249
Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.
Edeiken-monroe, B.
- Head and Neck ImagingYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
Edwards, P.K.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McColloughAmerican Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251
Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.
Escott, E.J.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Fan, Q.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Feigal, D.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Felton, E.
- Pediatric NeuroimagingOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302