Index by author
Nikoubashman, O.
- FELLOWS' JOURNAL CLUBINTERVENTIONALYou have accessClinical Impact of Ventilation Duration in Patients with Stroke Undergoing Interventional Treatment under General Anesthesia: The Shorter the Better?O. Nikoubashman, K. Schürmann, T. Probst, M. Müller, J.P. Alt, A.E. Othman, S. Tauber, M. Wiesmann and A. ReichAmerican Journal of Neuroradiology June 2016, 37 (6) 1074-1079; DOI: https://doi.org/10.3174/ajnr.A4680
The authors investigated the impact of early extubation and ventilation duration in a cohort of 103 patients that underwent thrombectomy under general anesthesia. Prolonged ventilation was associated with pneumonia during hospitalization and unfavorable functional outcome (mRS greater than or equal to 3) and death at follow-up. According to ROC analysis, a cutoff after 24 hours predicted unfavorable functional outcome with a sensitivity and specificity of 60% and 78%, respectively. The authors conclude that short ventilation times are associated with a lower pneumonia rate and more favorable clinical outcome.
Niu, D.-M.
- ADULT BRAINYou have accessBrain MR Imaging Findings of Cardiac-Type Fabry Disease with an IVS4+919G>A MutationH.-J. Lee, S.-C. Hung, T.-R. Hsu, S.-C. Ko, T. Chui-Mei, C.-C. Huang, D.-M. Niu and C.-P. LinAmerican Journal of Neuroradiology June 2016, 37 (6) 1044-1049; DOI: https://doi.org/10.3174/ajnr.A4677
Nomura, Y.
- ADULT BRAINOpen AccessComputer-Assisted Detection of Cerebral Aneurysms in MR Angiography in a Routine Image-Reading Environment: Effects on Diagnosis by RadiologistsS. Miki, N. Hayashi, Y. Masutani, Y. Nomura, T. Yoshikawa, S. Hanaoka, M. Nemoto and K. OhtomoAmerican Journal of Neuroradiology June 2016, 37 (6) 1038-1043; DOI: https://doi.org/10.3174/ajnr.A4671
Nordin, L.E.
- EDITOR'S CHOICEADULT BRAINOpen AccessClinical Feasibility of Synthetic MRI in Multiple Sclerosis: A Diagnostic and Volumetric Validation StudyT. Granberg, M. Uppman, F. Hashim, C. Cananau, L.E. Nordin, S. Shams, J. Berglund, Y. Forslin, P. Aspelin, S. Fredrikson and M. Kristoffersen-WibergAmerican Journal of Neuroradiology June 2016, 37 (6) 1023-1029; DOI: https://doi.org/10.3174/ajnr.A4665
SyMRI is a quantitative synthetic MR imaging method where a single saturation recovery TSE sequence is used to estimate the proton density, longitudinal relaxation rate, and transverse relaxation rate and allows for a free range of synthetic weightings. Twenty patients with MS and 20 healthy controls were enrolled and synthetic MR imaging was implemented on a Siemens 3T scanner. Diagnostic accuracy, lesion detection, and artifacts were assessed by blinded neuroradiologic evaluation, and CNR by manual tracing. Synthetic PD-, T1-, and T2-weighted images were of sufficient or good quality and were acquired in 7% less time than with conventional MRI. Synthetic FLAIR images suffered from artifacts. Also, synthetic MRI provided segmentations with the shortest processing time (16 seconds) and the lowest repeatability error for brain volume. Synthetic MRI can be an alternative to conventional MRI for generating diagnostic PD-, T1-, and T2-weighted images in patients with MS with fast and robust volumetric measurements.
Ogasawara, K.
- EXTRACRANIAL VASCULAROpen AccessOptimal MR Plaque Imaging for Cervical Carotid Artery Stenosis in Predicting the Development of Microembolic Signals during Exposure of Carotid Arteries in Endarterectomy: Comparison of 4 T1-Weighted Imaging TechniquesY. Sato, K. Ogasawara, S. Narumi, M. Sasaki, A. Saito, E. Tsushima, T. Namba, M. Kobayashi, K. Yoshida, Y. Terayama and A. OgawaAmerican Journal of Neuroradiology June 2016, 37 (6) 1146-1154; DOI: https://doi.org/10.3174/ajnr.A4674
Ogawa, A.
- EXTRACRANIAL VASCULAROpen AccessOptimal MR Plaque Imaging for Cervical Carotid Artery Stenosis in Predicting the Development of Microembolic Signals during Exposure of Carotid Arteries in Endarterectomy: Comparison of 4 T1-Weighted Imaging TechniquesY. Sato, K. Ogasawara, S. Narumi, M. Sasaki, A. Saito, E. Tsushima, T. Namba, M. Kobayashi, K. Yoshida, Y. Terayama and A. OgawaAmerican Journal of Neuroradiology June 2016, 37 (6) 1146-1154; DOI: https://doi.org/10.3174/ajnr.A4674
Ogborn, J.
- FELLOWS' JOURNAL CLUBPEDIATRICSYou have accessHow to Reduce Head CT Orders in Children with Hydrocephalus Using the Lean Six Sigma Methodology: Experience at a Major Quaternary Care Academic Children's CenterA. Tekes, E.M. Jackson, J. Ogborn, S. Liang, M. Bledsoe, D.J. Durand, G. Jallo and T.A.G.M. HuismanAmerican Journal of Neuroradiology June 2016, 37 (6) 990-996; DOI: https://doi.org/10.3174/ajnr.A4658
The authors describe a Lean Six Sigma project with the goal of reducing the relative use of pediatric head CTs in their population of patients with hydrocephalus by 50% within 6 months. The existing baseline imaging practice for hydrocephalus was outlined in a Kaizen session, and potential interventions were discussed. An improved radiation-free workflow with ultrafast MR imaging was created. Baseline data were collected for 3 months by using the departmental radiology information system and data collection continued postintervention and during the control phase. The improved workflow resulted in a 75% relative reduction in the percentage of hydrocephalus imaging performed by CT between the pre- and postintervention/control phases. The authors conclude that the lean interventions in the pediatric hydrocephalus care pathway resulted in a significant reduction in head CT orders.
Oh, Y.L.
- HEAD & NECKYou have accessModified Core Biopsy Technique to Increase Diagnostic Yields for Well-Circumscribed Indeterminate Thyroid Nodules: A Retrospective AnalysisS. Han, J.H. Shin, S.Y. Hahn and Y.L. OhAmerican Journal of Neuroradiology June 2016, 37 (6) 1155-1159; DOI: https://doi.org/10.3174/ajnr.A4650
Ohtomo, K.
- ADULT BRAINOpen AccessComputer-Assisted Detection of Cerebral Aneurysms in MR Angiography in a Routine Image-Reading Environment: Effects on Diagnosis by RadiologistsS. Miki, N. Hayashi, Y. Masutani, Y. Nomura, T. Yoshikawa, S. Hanaoka, M. Nemoto and K. OhtomoAmerican Journal of Neuroradiology June 2016, 37 (6) 1038-1043; DOI: https://doi.org/10.3174/ajnr.A4671
Ooi, Y.C.
- INTERVENTIONALOpen AccessAngiographic Structural Differentiation between Native Arteriogenesis and Therapeutic Synangiosis in Intracranial Arterial Steno-Occlusive DiseaseY.C. Ooi, A.N. Laiwalla, R. Liou and N.R. GonzalezAmerican Journal of Neuroradiology June 2016, 37 (6) 1086-1091; DOI: https://doi.org/10.3174/ajnr.A4675
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