Index by author
Kunst, M.M.
- EDITOR'S CHOICEAdult BrainYou have accessSpiral T1 Spin-Echo for Routine Postcontrast Brain MRI Exams: A Multicenter Multireader Clinical EvaluationM.B. Ooi, Z. Li, R.K. Robison, D. Wang, A.G. Anderson, N.R. Zwart, A. Bakhru, S. Nagaraj, T. Mathews, S. Hey, J.J. Koonen, I.E. Dimitrov, H.T. Friel, Q. Lu, M. Obara, I. Saha, H. Wang, Y. Wang, Y. Zhao, M. Temkit, H.H. Hu, T.L. Chenevert, O. Togao, J.A. Tkach, U.D. Nagaraj, M.C. Pinho, R.K. Gupta, J.E. Small, M.M. Kunst, J.P. Karis, J.B. Andre, J.H. Miller, N.K. Pinter and J.G. PipeAmerican Journal of Neuroradiology February 2020, 41 (2) 238-245; DOI: https://doi.org/10.3174/ajnr.A6409
The authors report a multicenter multireader study that was designed to compare spiral with standard-of-care Cartesian postcontrast structural brain MR imaging on the basis of relative performance in 10 metrics of image quality, artifact prevalence, and diagnostic benefit. Seven clinical sites acquired 88 total subjects. For each subject, sites acquired 2 postcontrast MR imaging scans: a spiral 2D T1 spin-echo, and 1 of 4 routine Cartesian 2D T1 spin-echo/TSE scans. Nine neuroradiologists independently reviewed each subject, with the matching pair of spiral and Cartesian scans compared side-by-side, and scored the subject on 10 image-quality metrics. Spiral was superior to Cartesian in 7 of 10 metrics (flow artifact mitigation, SNR, GM/WM contrast, image sharpness, lesion conspicuity, preference for diagnosing abnormal enhancement, and overall intracranial image quality), comparable in 1 of 10 metrics (motion artifacts), and inferior in 2 of 10 metrics (susceptibility artifacts, overall extracranial image quality). Spiral 2D T1 spin-echo for routine structural brain MR imaging is feasible in the clinic with conventional scanners and was preferred by neuroradiologists for overall postcontrast intracranial evaluation.
Lane, J.
- Head and Neck ImagingOpen AccessThe Forgotten Second Window: A Pictorial Review of Round Window PathologiesJ.C. Benson, F. Diehn, T. Passe, J. Guerin, V.M. Silvera, M.L. Carlson and J. LaneAmerican Journal of Neuroradiology February 2020, 41 (2) 192-199; DOI: https://doi.org/10.3174/ajnr.A6356
Larrue, V.
- Extracranial VascularYou have accessStandard Diffusion-Weighted Imaging in the Brain Can Detect Cervical Internal Carotid Artery DissectionsG. Adam, J. Darcourt, M. Roques, M. Ferrier, R. Gramada, Z. Meluchova, S. Patsoura, A. Viguier, C. Cognard, V. Larrue and F. BonnevilleAmerican Journal of Neuroradiology February 2020, 41 (2) 318-322; DOI: https://doi.org/10.3174/ajnr.A6383
Lassalle, M.V.
- NeurointerventionYou have accessDWI-Based Algorithm to Predict Disability in Patients Treated with Thrombectomy for Acute StrokeH. Raoult, M.V. Lassalle, B. Parat, C. Rousseau, F. Eugène, S. Vannier, S. Evain, A. Le Bras, T. Ronziere, J.C. Ferre, J.Y. Gauvrit and B. LaviolleAmerican Journal of Neuroradiology February 2020, 41 (2) 274-279; DOI: https://doi.org/10.3174/ajnr.A6379
Laviolle, B.
- NeurointerventionYou have accessDWI-Based Algorithm to Predict Disability in Patients Treated with Thrombectomy for Acute StrokeH. Raoult, M.V. Lassalle, B. Parat, C. Rousseau, F. Eugène, S. Vannier, S. Evain, A. Le Bras, T. Ronziere, J.C. Ferre, J.Y. Gauvrit and B. LaviolleAmerican Journal of Neuroradiology February 2020, 41 (2) 274-279; DOI: https://doi.org/10.3174/ajnr.A6379
Le Bras, A.
- NeurointerventionYou have accessDWI-Based Algorithm to Predict Disability in Patients Treated with Thrombectomy for Acute StrokeH. Raoult, M.V. Lassalle, B. Parat, C. Rousseau, F. Eugène, S. Vannier, S. Evain, A. Le Bras, T. Ronziere, J.C. Ferre, J.Y. Gauvrit and B. LaviolleAmerican Journal of Neuroradiology February 2020, 41 (2) 274-279; DOI: https://doi.org/10.3174/ajnr.A6379
Levy, E.I.
- EDITOR'S CHOICEAdult BrainYou have accessAssessment of a Bayesian Vitrea CT Perfusion Analysis to Predict Final Infarct and Penumbra Volumes in Patients with Acute Ischemic Stroke: A Comparison with RAPIDR.A. Rava, K.V. Snyder, M. Mokin, M. Waqas, A.B. Allman, J.L. Senko, A.R. Podgorsak, M.M. Shiraz Bhurwani, Y. Hoi, A.H. Siddiqui, J.M. Davies, E.I. Levy and C.N. IonitaAmerican Journal of Neuroradiology February 2020, 41 (2) 206-212; DOI: https://doi.org/10.3174/ajnr.A6395
Data were retrospectively collected for 105 patients with acute ischemic stroke (55 patients with successful recanalization [TICI 2b/2c/3] and large-vessel occlusions and 50 patients without interventions). Final infarct volumes were calculated using DWI and FLAIR 24 hours following CTP imaging. RAPID and the Vitrea Bayesian CTP algorithm (with 3 different settings) predicted infarct and penumbra volumes for comparison with final infarct volumes to assess software performance. RAPID and Vitrea default setting had the most accurate final infarct volume prediction in patients with interventions. Default Vitrea and RAPID were the most and least accurate in determining final infarct volume for patients without an intervention, respectively. Compared with RAPID, the Vitrea default setting was noninferior for patients with interventions and superior in penumbra estimation for patients without interventions as indicated by mean infarct differences and correlations with final infarct volumes.
Li, G.-J.
- Adult BrainOpen AccessMR Diffusional Kurtosis Imaging–Based Assessment of Brain Microstructural Changes in Patients with Moyamoya Disease before and after RevascularizationP.-G. Qiao, X. Cheng, G.-J. Li, P. Song, C. Han and Z.-H. YangAmerican Journal of Neuroradiology February 2020, 41 (2) 246-254; DOI: https://doi.org/10.3174/ajnr.A6392
Li, Y.
- Pediatric NeuroimagingYou have accessMRI Patterns of Extrapontine Lesion Extension in Diffuse Intrinsic Pontine GliomasL. Makepeace, M. Scoggins, B. Mitrea, Y. Li, A. Edwards, C.L. Tinkle, S. Hwang, A. Gajjar and Z. PatayAmerican Journal of Neuroradiology February 2020, 41 (2) 323-330; DOI: https://doi.org/10.3174/ajnr.A6391
Li, Z.
- EDITOR'S CHOICEAdult BrainYou have accessSpiral T1 Spin-Echo for Routine Postcontrast Brain MRI Exams: A Multicenter Multireader Clinical EvaluationM.B. Ooi, Z. Li, R.K. Robison, D. Wang, A.G. Anderson, N.R. Zwart, A. Bakhru, S. Nagaraj, T. Mathews, S. Hey, J.J. Koonen, I.E. Dimitrov, H.T. Friel, Q. Lu, M. Obara, I. Saha, H. Wang, Y. Wang, Y. Zhao, M. Temkit, H.H. Hu, T.L. Chenevert, O. Togao, J.A. Tkach, U.D. Nagaraj, M.C. Pinho, R.K. Gupta, J.E. Small, M.M. Kunst, J.P. Karis, J.B. Andre, J.H. Miller, N.K. Pinter and J.G. PipeAmerican Journal of Neuroradiology February 2020, 41 (2) 238-245; DOI: https://doi.org/10.3174/ajnr.A6409
The authors report a multicenter multireader study that was designed to compare spiral with standard-of-care Cartesian postcontrast structural brain MR imaging on the basis of relative performance in 10 metrics of image quality, artifact prevalence, and diagnostic benefit. Seven clinical sites acquired 88 total subjects. For each subject, sites acquired 2 postcontrast MR imaging scans: a spiral 2D T1 spin-echo, and 1 of 4 routine Cartesian 2D T1 spin-echo/TSE scans. Nine neuroradiologists independently reviewed each subject, with the matching pair of spiral and Cartesian scans compared side-by-side, and scored the subject on 10 image-quality metrics. Spiral was superior to Cartesian in 7 of 10 metrics (flow artifact mitigation, SNR, GM/WM contrast, image sharpness, lesion conspicuity, preference for diagnosing abnormal enhancement, and overall intracranial image quality), comparable in 1 of 10 metrics (motion artifacts), and inferior in 2 of 10 metrics (susceptibility artifacts, overall extracranial image quality). Spiral 2D T1 spin-echo for routine structural brain MR imaging is feasible in the clinic with conventional scanners and was preferred by neuroradiologists for overall postcontrast intracranial evaluation.
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