American Journal of Neuroradiology: 41 (3)

Index by author

March 01, 2020; Volume 41,Issue 3

Swanson, K.R.
1. EDITOR'S CHOICEAdult Brain
  
  Open Access
  Performance of Standardized Relative CBV for Quantifying Regional Histologic Tumor Burden in Recurrent High-Grade Glioma: Comparison against Normalized Relative CBV Using Image-Localized Stereotactic Biopsies
  J.M. Hoxworth, J.M. Eschbacher, A.C. Gonzales, K.W. Singleton, G.D. Leon, K.A. Smith, A.M. Stokes, Y. Zhou, G.L. Mazza, A.B. Porter, M.M. Mrugala, R.S. Zimmerman, B.R. Bendok, D.P. Patra, C. Krishna, J.L. Boxerman, L.C. Baxter, K.R. Swanson, C.C. Quarles, K.M. Schmainda and L.S. Hu
  
  American Journal of Neuroradiology March 2020, 41 (3) 408-415; DOI: https://doi.org/10.3174/ajnr.A6486
  
  This study compares the predictive performance of relative CBV standardization against relative CBV normalization for quantifying recurrent tumor burden in high-grade gliomas relative to posttreatment radiation effects. The authors recruited 38 previously treated patients with high-grade gliomas (World Health Organization grades III or IV) undergoing surgical re-resection for recurrent tumor versus posttreatment radiation effects. They recovered 112 image-localized biopsies and quantified the percentage of histologic tumor content versus posttreatment radiation effects for each sample. They measured spatially matched normalized and standardized relative CBV metrics (mean, median) and fractional tumor burden for each biopsy. Across relative CBV metrics, fractional tumor burden showed the highest correlations with tumor content (0%–100%) for normalized and standardized values. With binary cutoffs, predictive accuracies were similar for both standardized and normalized metrics and across relative CBV metrics. Standardization of relative CBV achieves similar equivalent performance compared with normalized relative CBV and offers an important step toward workflow optimization and consensus methodology.
Thomas, A.J.
1. Interventional
  
  You have access
  Implications of the Collar Sign in Incompletely Occluded Aneurysms after Pipeline Embolization Device Implantation: A Follow-Up Study
  S. Gomez-Paz, Y. Akamatsu, J.M. Moore, C.S. Ogilvy, A.J. Thomas and C.J. Griessenauer
  
  American Journal of Neuroradiology March 2020, 41 (3) 482-485; DOI: https://doi.org/10.3174/ajnr.A6415
Tintore, M.
1. Adult Brain
  
  Open Access
  Ratio of T1-Weighted to T2-Weighted Signal Intensity as a Measure of Tissue Integrity: Comparison with Magnetization Transfer Ratio in Patients with Multiple Sclerosis
  D. Pareto, A. Garcia-Vidal, M. Alberich, C. Auger, X. Montalban, M. Tintoré, J. Sastre-Garriga and À. Rovira
  
  American Journal of Neuroradiology March 2020, 41 (3) 461-463; DOI: https://doi.org/10.3174/ajnr.A6481
Tsankova, N.M.
1. Adult Brain
  
  You have access
  Vessel Wall MRI Enhancement in Noninflammatory Cerebral Amyloid Angiopathy
  Q. Hao, N.M. Tsankova, H. Shoirah, C.P. Kellner and K. Nael
  
  American Journal of Neuroradiology March 2020, 41 (3) 446-448; DOI: https://doi.org/10.3174/ajnr.A6445
Tse, I.O.L.
1. EDITOR'S CHOICEHead & Neck
  
  Open Access
  Early Detection of Cancer: Evaluation of MR Imaging Grading Systems in Patients with Suspected Nasopharyngeal Carcinoma
  A.D. King, J.K.S. Woo, Q.-Y. Ai, F.K.F. Mo, T.Y. So, W.K.J. Lam, I.O.L. Tse, A.C. Vlantis, K.W.N. Yip, E.P. Hui, B.B.Y. Ma, R.W.K. Chiu, A.T.C. Chan, Y.M.D. Lo and K.C.A. Chan
  
  American Journal of Neuroradiology March 2020, 41 (3) 515-521; DOI: https://doi.org/10.3174/ajnr.A6444
  
  Dedicated nasopharyngeal MR imaging before (plain scan system) and after intravenous contrast administration (current and modified systems) was reviewed in patients from a nasopharyngeal carcinoma-endemic region, comprising 383 patients with suspected disease without nasopharyngeal carcinoma and 383 patients with nasopharyngeal carcinoma. The modified and plain scan systems refined primary tumor criteria, added a nodal assessment, and expanded the system from 4 to 5 grades. The current, modified, and plain scan MR imaging systems yielded sensitivities of 99.74%, 97.91%, and 97.65%, respectively, and specificities of 63.45%, 89.56%, and 86.42%, respectively. The modified system yielded significantly better performance than the current and plain systems. In conclusion, the authors propose a modified MR imaging grading system that improves diagnostic performance for nasopharyngeal carcinoma detection. Contrast was not valuable for low MR imaging grades, and the plain scan shows potential for use in screening programs.
Tsuboi, T.
1. Functional
  
  You have access
  Functional and Structural Connectivity Patterns Associated with Clinical Outcomes in Deep Brain Stimulation of the Globus Pallidus Internus for Generalized Dystonia
  L. Okromelidze, T. Tsuboi, R.S. Eisinger, M.R. Burns, M. Charbel, M. Rana, S.S. Grewal, C.-Q. Lu, L. Almeida, K.D. Foote, M.S. Okun and E.H. Middlebrooks
  
  American Journal of Neuroradiology March 2020, 41 (3) 508-514; DOI: https://doi.org/10.3174/ajnr.A6429
Urbach, H.
1. Interventional
  
  You have access
  Contrast Enhancement of Intracranial Aneurysms on 3T 3D Black-Blood MRI and Its Relationship to Aneurysm Recurrence following Endovascular Treatment
  S. Elsheikh, H. Urbach and S. Meckel
  
  American Journal of Neuroradiology March 2020, 41 (3) 495-500; DOI: https://doi.org/10.3174/ajnr.A6440
Valencia-calderon, C.J.
1. LETTER
  
  You have access
  Neuronavigation in the Identification and Presurgical Planning of Cortical Focal Dysplasia
  C.J. Valencia-Calderón
  
  American Journal of Neuroradiology March 2020, 41 (3) E10-E11; DOI: https://doi.org/10.3174/ajnr.A6417
Van Laarhoven, C.J.H.C.M.
1. Extracranial Vascular
  
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  Gadolinium Enhancement of the Aneurysm Wall in Extracranial Carotid Artery Aneurysms
  C.J.H.C.M. van Laarhoven, M.L. Rots, V.E.C. Pourier, N.K.N. Jorritsma, T. Leiner, J. Hendrikse, M.D.I. Vergouwen and G.J. de Borst
  
  American Journal of Neuroradiology March 2020, 41 (3) 501-507; DOI: https://doi.org/10.3174/ajnr.A6442
Van Ombergen, A.
1. LETTER
  
  You have access
  The Possible Role of Elastic Properties of the Brain and Optic Nerve Sheath in the Development of Spaceflight-Associated Neuro-Ocular Syndrome
  P. Wostyn, T.H. Mader, C.R. Gibson, F.L. Wuyts, A. Van Ombergen, P. zu Eulenburg and P.P. De Deyn
  
  American Journal of Neuroradiology March 2020, 41 (3) E14-E15; DOI: https://doi.org/10.3174/ajnr.A6430

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American Journal of Neuroradiology

Index by author

Swanson, K.R.

Thomas, A.J.

Tintore, M.

Tsankova, N.M.

Tse, I.O.L.

Tsuboi, T.

Urbach, H.

Valencia-calderon, C.J.

Van Laarhoven, C.J.H.C.M.

Van Ombergen, A.

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