Index by author
O'sullivan, B.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessSetting the Stage for 2018: How the Changes in the American Joint Committee on Cancer/Union for International Cancer Control Cancer Staging Manual Eighth Edition Impact RadiologistsC.M. Glastonbury, S.K. Mukherji, B. O'Sullivan and W.M. LydiattAmerican Journal of Neuroradiology December 2017, 38 (12) 2231-2237; DOI: https://doi.org/10.3174/ajnr.A5409
The updated eighth edition of the Cancer Staging Manual of the American Joint Committee on Cancer will be implemented in January 2018. There are multiple changes to the head and neck section of the manual, which will be relevant to radiologists participating in multidisciplinary head and neck tumor boards and reading pretreatment head and neck cancer scans.
Obajuluwa, A.
- FELLOWS' JOURNAL CLUBOpen AccessPacemakers in MRI for the NeuroradiologistA.W. Korutz, A. Obajuluwa, M.S. Lester, E.N. McComb, T.A. Hijaz, J.D. Collins, S. Dandamudi, B.P. Knight and A.J. NemethAmerican Journal of Neuroradiology December 2017, 38 (12) 2222-2230; DOI: https://doi.org/10.3174/ajnr.A5314
The authors review the relevant cardiac implantable electronic devices encountered in practice today, the background physics/technical factors related to scanning these devices, the multidisciplinary screening protocol used at their institution for scanning patients with implantable cardiac devices, and their experience in safely performing these examinations since 2010.
Ogasawara, K.
- EDITOR'S CHOICEExtracranial VascularOpen AccessPreoperative Cerebral Oxygen Extraction Fraction Imaging Generated from 7T MR Quantitative Susceptibility Mapping Predicts Development of Cerebral Hyperperfusion following Carotid EndarterectomyJ.-i. Nomura, I. Uwano, M. Sasaki, K. Kudo, F. Yamashita, K. Ito, S. Fujiwara, M. Kobayashi and K. OgasawaraAmerican Journal of Neuroradiology December 2017, 38 (12) 2327-2333; DOI: https://doi.org/10.3174/ajnr.A5390
Seventy-seven patients with unilateral internal carotid artery stenosis underwent preoperative 3DT2*-weighted imaging using a multiple dipole-inversion algorithm with a 7T MR scanner. Quantitative susceptibility mapping images wereobtained, and oxygen extraction fraction maps were generated. Quantitative brain perfusion single-photon emission CT was alsoperformed before and immediately after carotid endarterectomy. Ten patients (13%) showed post–carotid endarterectomy hyperperfusion. Multivariate analysis showed that a high quantitative susceptibility mapping–oxygen extraction fraction ratio was significantly associated with the development of post–carotid endarterectomy hyperperfusion.
Ogawa, T.
- LETTERYou have accessReply:Y. Shinohara and T. OgawaAmerican Journal of Neuroradiology December 2017, 38 (12) E104; DOI: https://doi.org/10.3174/ajnr.A5364
Ogilvy, C.S.
- EDITOR'S CHOICEInterventionalYou have accessPredictors of Incomplete Occlusion following Pipeline Embolization of Intracranial Aneurysms: Is It Less Effective in Older Patients?N. Adeeb, J.M. Moore, M. Wirtz, C.J. Griessenauer, P.M. Foreman, H. Shallwani, R. Gupta, A.A. Dmytriw, R. Motiei-Langroudi, A. Alturki, M.R. Harrigan, A.H. Siddiqui, E.I. Levy, A.J. Thomas and C.S. OgilvyAmerican Journal of Neuroradiology December 2017, 38 (12) 2295-2300; DOI: https://doi.org/10.3174/ajnr.A5375
This was a retrospective analysis of 465 consecutive aneurysms treated with the Pipeline Embolization Device between 2009 and 2016, at 3 academic institutions in the United States. Cases with angiographic follow-up were selected to evaluate factors predictive of incomplete aneurysm occlusion at last follow-up. Older age (more than 70 years), nonsmoking status, aneurysm location within the posterior communicating artery or posterior circulation, greater aneurysm maximal diameter (>21 mm), and shorter follow-up time (<12 months) were significantly associated with incomplete aneurysm occlusion at last angiographic follow-up.
Olivo, G.
- Adult BrainYou have accessRedefining the Pulvinar Sign in Fabry DiseaseS. Cocozza, C. Russo, A. Pisani, G. Olivo, E. Riccio, A. Cervo, G. Pontillo, S. Feriozzi, M. Veroux, Y. Battaglia, D. Concolino, F. Pieruzzi, R. Mignani, P. Borrelli, M. Imbriaco, A. Brunetti, E. Tedeschi and G. PalmaAmerican Journal of Neuroradiology December 2017, 38 (12) 2264-2269; DOI: https://doi.org/10.3174/ajnr.A5420
Onoue, K.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessCT Texture Analysis Potentially Predicts Local Failure in Head and Neck Squamous Cell Carcinoma Treated with ChemoradiotherapyH. Kuno, M.M. Qureshi, M.N. Chapman, B. Li, V.C. Andreu-Arasa, K. Onoue, M.T. Truong and O. SakaiAmerican Journal of Neuroradiology December 2017, 38 (12) 2334-2340; DOI: https://doi.org/10.3174/ajnr.A5407
This was a retrospective study including 62 patients diagnosed with primary head and neck squamous cellcarcinoma who underwent contrast-enhanced CT examinations for staging, followed by chemoradiotherapy. CT texture features of thewhole primary tumor were measured using an in-house developed Matlab-based texture analysis program. Histogram, gray-level co-occurrence matrix, gray-level run-length, gray-level gradient matrix, and Laws features were used for texture feature extraction. Three histogram features (geometric mean, harmonic, and fourth moment) and 4 gray-level run-length features (short-run emphasis, gray-level nonuniformity, run-length nonuniformity, and short-run low gray-level emphasis) were significant predictors of outcome.
Ou, X.
- PediatricsOpen AccessGestational Age at Birth and Brain White Matter Development in Term-Born Infants and ChildrenX. Ou, C.M. Glasier, R.H. Ramakrishnaiah, A. Kanfi, A.C. Rowell, R.T. Pivik, A. Andres, M.A. Cleves and T.M. BadgerAmerican Journal of Neuroradiology December 2017, 38 (12) 2373-2379; DOI: https://doi.org/10.3174/ajnr.A5408
Palma, G.
- Adult BrainYou have accessRedefining the Pulvinar Sign in Fabry DiseaseS. Cocozza, C. Russo, A. Pisani, G. Olivo, E. Riccio, A. Cervo, G. Pontillo, S. Feriozzi, M. Veroux, Y. Battaglia, D. Concolino, F. Pieruzzi, R. Mignani, P. Borrelli, M. Imbriaco, A. Brunetti, E. Tedeschi and G. PalmaAmerican Journal of Neuroradiology December 2017, 38 (12) 2264-2269; DOI: https://doi.org/10.3174/ajnr.A5420
Parazzini, C.
- PediatricsOpen AccessAnterior Mesencephalic Cap Dysplasia: Novel Brain Stem Malformative Features Associated with Joubert SyndromeF. Arrigoni, R. Romaniello, D. Peruzzo, A. De Luca, C. Parazzini, E.M. Valente, R. Borgatti and F. TriulziAmerican Journal of Neuroradiology December 2017, 38 (12) 2385-2390; DOI: https://doi.org/10.3174/ajnr.A5360