Index by author
Wiberg, M.K.
- Adult BrainYou have accessGadolinium Retention in the Brain: An MRI Relaxometry Study of Linear and Macrocyclic Gadolinium-Based Contrast Agents in Multiple SclerosisY. Forslin, J. Martola, Å. Bergendal, S. Fredrikson, M.K. Wiberg and T. GranbergAmerican Journal of Neuroradiology August 2019, 40 (8) 1265-1273; DOI: https://doi.org/10.3174/ajnr.A6112
Wiesmuller, M.
- Extracranial VascularYou have accessCarotid CTA at the Lowest Tube Voltage (70 kV) in Comparison with Automated Tube Voltage AdaptionA. Eller, M. Wiesmüller, W. Wüst, R. Heiss, M. Kopp, M. Saake, M. Brand, M. Uder and M.M. MayAmerican Journal of Neuroradiology August 2019, 40 (8) 1374-1382; DOI: https://doi.org/10.3174/ajnr.A6108
Wong, K.-H.
- Extracranial VascularYou have accessCarotid Artery Stiffness Accurately Predicts White Matter Hyperintensity Volume 20 Years Later: A Secondary Analysis of the Atherosclerosis Risk in the Community StudyA. de Havenon, K.-H. Wong, A. Elkhetali, J.S. McNally, J.J. Majersik and N.S. RostAmerican Journal of Neuroradiology August 2019, 40 (8) 1369-1373; DOI: https://doi.org/10.3174/ajnr.A6115
Wu, T.
- Adult BrainOpen AccessManganese-Enhanced MRI of the Brain in Healthy VolunteersD.M. Sudarshana, G. Nair, J.T. Dwyer, B. Dewey, S.U. Steele, D.J. Suto, T. Wu, B.A. Berkowitz, A.P. Koretsky, I.C.M. Cortese and D.S. ReichAmerican Journal of Neuroradiology August 2019, 40 (8) 1309-1316; DOI: https://doi.org/10.3174/ajnr.A6152
Wust, W.
- Extracranial VascularYou have accessCarotid CTA at the Lowest Tube Voltage (70 kV) in Comparison with Automated Tube Voltage AdaptionA. Eller, M. Wiesmüller, W. Wüst, R. Heiss, M. Kopp, M. Saake, M. Brand, M. Uder and M.M. MayAmerican Journal of Neuroradiology August 2019, 40 (8) 1374-1382; DOI: https://doi.org/10.3174/ajnr.A6108
Xiao, S.
- Adult BrainOpen AccessThe Association between FLAIR Vascular Hyperintensity and Stroke Outcome Varies with Time from OnsetW.J. Shang, H.B. Chen, L.M. Shu, H.Q. Liao, X.Y. Huang, S. Xiao and H. HongAmerican Journal of Neuroradiology August 2019, 40 (8) 1317-1322; DOI: https://doi.org/10.3174/ajnr.A6142
Xie, L.
- EDITOR'S CHOICEAdult BrainOpen AccessConvolutional Neural Network for Automated FLAIR Lesion Segmentation on Clinical Brain MR ImagingM.T. Duong, J.D. Rudie, J. Wang, L. Xie, S. Mohan, J.C. Gee and A.M. RauscheckerAmerican Journal of Neuroradiology August 2019, 40 (8) 1282-1290; DOI: https://doi.org/10.3174/ajnr.A6138
This convolutional neural network was retrospectively trained on 295 brain MRIs to perform automated FLAIR lesion segmentation. Performance was evaluated on 92 validation cases using Dice scores and voxelwise sensitivity and specificity, compared with radiologists' manual segmentations. The authors' model demonstrated accurate FLAIR lesion segmentation performance (median Dice score, 0.79) on the validation dataset across a large range of lesion characteristics. Across 19 neurologic diseases, performance was significantly higher than existing methods (Dice, 0.56 and 0.41) and approached human performance (Dice, 0.81).
Yang, P.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessOne-Stop Management with Perfusion for Transfer Patients with Stroke due to a Large-Vessel Occlusion: Feasibility and Effects on In-Hospital TimesA. Brehm, I. Tsogkas, I.L. Maier, H.J. Eisenberger, P. Yang, J.-M. Liu, J. Liman and M.-N. PsychogiosAmerican Journal of Neuroradiology August 2019, 40 (8) 1330-1334; DOI: https://doi.org/10.3174/ajnr.A6129
The authors report the first 15 consecutive transfer patients with stroke with externally confirmed large-vessel occlusions who underwent flat panel detector CT perfusion and thrombectomy in the same room. Preinterventional imaging consisted of noncontrast flat panel detector CT and flat panel detector CT perfusion, acquired with a biplane angiography system. The flat panel detector CT perfusion was used to reconstruct a flat panel detector CT angiography to confirm the large-vessel occlusions. After confirmation of the large-vessel occlusion, the patient underwent mechanical thrombectomy. Fifteen transfer patients underwent flat panel detector CT perfusion and were treated with mechanical thrombectomy from June 2017 to January 2019. The median time from symptom onset to admission was 241 minutes. Median door-to-groin time was 24 minutes. Compared with 23 transfer patients imaged with multidetector CT, time was reduced significantly (24 minutes versus53 minutes).
Yoon, W.
- InterventionalYou have accessPretreatment Anterior Choroidal Artery Infarction Predicts Poor Outcome after Thrombectomy in Intracranial ICA OcclusionB.H. Baek, Y.Y. Lee, S.K. Kim and W. YoonAmerican Journal of Neuroradiology August 2019, 40 (8) 1349-1355; DOI: https://doi.org/10.3174/ajnr.A6126
Zetchi, A.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessDistal Balloon Angioplasty of Cerebral Vasospasm Decreases the Risk of Delayed Cerebral InfarctionM.-A. Labeyrie, S. Gaugain, G. Boulouis, A. Zetchi, J. Brami, J.-P. Saint-Maurice, V. Civelli, S. Froelich and E. HoudartAmerican Journal of Neuroradiology August 2019, 40 (8) 1342-1348; DOI: https://doi.org/10.3174/ajnr.A6124
A group of 392 patients was analyzed (160 before versus 232 after January 2015). Distal balloon angioplasty was associated with the following: higher rates of angioplasty (43% versus 27%) and intravenous milrinone (31% versus 9%); lower rates of postangioplasty delayed cerebral infarction (2.2% versus 7.5%) and new angioplasty (8% versus 19%) independent of the rate of patients treated by angioplasty and milrinone; and the same rates of stroke related to angioplasty (3.6% versus 3.1%), delayed cerebral infarction (7.7% versus 12.5%), mortality (10% versus 11%), and favorable outcome (79% versus 73%). The authors conclude that distal balloon angioplasty is safe and decreases the risk of delayed cerebral infarction and the recurrence of vasospasm compared with conventional angioplasty. It fails to show a clinical benefit possibly because of confounding changes in adjuvant therapies of vasospasm during the study period.
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