Index by author
Lee, K.Y.
- EDITOR'S CHOICEBrainOpen AccessBlood-Brain Barrier Disruption after Cardiac SurgeryJ.G. Merino, L.L. Latour, A. Tso, K.Y. Lee, D.W. Kang, L.A. Davis, R.M. Lazar, K.A. Horvath, P.J. Corso and S. WarachAmerican Journal of Neuroradiology March 2013, 34 (3) 518-523; DOI: https://doi.org/10.3174/ajnr.A3251
To shed light on brain complications occurring after heart surgery, the authors assessed BBB disruption and DWI findings in half of their patients by imaging at 24 hours after surgery and 24–48 hours later. Additionally, postcontrast T1 images were obtained postoperatively at 2–4 days in the other half of the patients. Almost half the patients undergoing cardiac surgery had evidence of BBB abnormalities and three-quarters showed acute lesions on DWI after surgery. BBB disruption is more prevalent in the first 24 hours after surgery. These findings suggest that MR can be used as an imaging biomarker to assess therapies that may protect the BBB in patients undergoing heart surgery.
Liamlahi, R.
- Pediatric NeuroimagingYou have accessAbnormal Interhemispheric Connectivity in Neonates with D-Transposition of the Great Arteries Undergoing Cardiopulmonary Bypass SurgeryM. Makki, I. Scheer, C. Hagmann, R. Liamlahi, W. Knirsch, H. Dave, V. Bernet, K. Batinic and B. LatalAmerican Journal of Neuroradiology March 2013, 34 (3) 634-640; DOI: https://doi.org/10.3174/ajnr.A3256
Liao, J.H.
- Head and Neck ImagingYou have accessQuantitative MRI Analysis of Craniofacial Bone Marrow in Patients with Sickle Cell DiseaseE.J. Elias, J.H. Liao, H. Jara, M. Watanabe, R.N. Nadgir, Y. Sakai, K. Erbay, N. Saito, A. Ozonoff, M.H. Steinberg and O. SakaiAmerican Journal of Neuroradiology March 2013, 34 (3) 622-627; DOI: https://doi.org/10.3174/ajnr.A3240
Liau, L.M.
- EDITOR'S CHOICEBrainYou have accessProbabilistic Radiographic Atlas of Glioblastoma PhenotypesB.M. Ellingson, A. Lai, R.J. Harris, J.M. Selfridge, W.H. Yong, K. Das, W.B. Pope, P.L. Nghiemphu, H.V. Vinters, L.M. Liau, P.S. Mischel and T.F. CloughesyAmerican Journal of Neuroradiology March 2013, 34 (3) 533-540; DOI: https://doi.org/10.3174/ajnr.A3253
Images from over 500 patients with glioblastoma were used to build location atlases corresponding to genetic and biologic abnormalities as well as prognosis based on age. Most glioblastomas grew into the periventricular regions adjacent to the subventricular zone. MGMT promoter methylated tumors occurred more frequently in the left temporal lobe in young patients, in IDH1 mutant tumors, in those having the proneural gene expression subtype, and in tumors lacking loss of PTEN that occurred most frequently in the frontal lobe. MGMT methylated tumors with IDH1 mutation tended to occur in the left frontal lobe. EGFR amplified and EGFR variant 3-expressing tumors were found most frequently in the left temporal lobe. Tumors in the left temporal lobe were associated with favorable response to radiochemotherapy and increased survival.
Lindqvist, T.
- BrainYou have accessAutomated Determination of Brain Parenchymal Fraction in Multiple SclerosisM. Vågberg, T. Lindqvist, K. Ambarki, J.B.M. Warntjes, P. Sundström, R. Birgander and A. SvenningssonAmerican Journal of Neuroradiology March 2013, 34 (3) 498-504; DOI: https://doi.org/10.3174/ajnr.A3262
Liu, H.
- FunctionalOpen AccessLanguage Lateralization Represented by Spatiotemporal Mapping of MagnetoencephalographyN. Tanaka, H. Liu, C. Reinsberger, J.R. Madsen, B.F. Bourgeois, B.A. Dworetzky, M.S. Hämäläinen and S.M. StufflebeamAmerican Journal of Neuroradiology March 2013, 34 (3) 558-563; DOI: https://doi.org/10.3174/ajnr.A3233
Liu, J.-M.
- NeurointerventionOpen AccessEndovascular Reconstruction for Treatment of Vertebrobasilar Dolichoectasia: Long-Term OutcomesX. Wu, Y. Xu, B. Hong, W.-Y. Zhao, Q.-H. Huang and J.-M. LiuAmerican Journal of Neuroradiology March 2013, 34 (3) 583-588; DOI: https://doi.org/10.3174/ajnr.A3248
Liu, K.
- BrainOpen AccessMR Imaging of Cerebral Extraventricular Neurocytoma: A Report of 9 CasesK. Liu, G. Wen, X.-F. Lv, Yan-Jia Deng, Yong-Jian Deng, G.-Q. Hou, X.-L. Zhang, L.-J. Han and J.-L. DingAmerican Journal of Neuroradiology March 2013, 34 (3) 541-546; DOI: https://doi.org/10.3174/ajnr.A3264
Lobotesis, K.
- FELLOWS' JOURNAL CLUBNeurointerventionYou have accessEvaluation of an Intravenous-Endovascular Strategy in Patients with Acute Proximal Middle Cerebral Artery OcclusionJ.-F. Vendrell, R. Mernes, N. Nagot, D. Milhaud, K. Lobotesis, V. Costalat, P. Machi, I.L. Maldonado, C. Riquelme, C. Arquizan and A. BonafeAmerican Journal of Neuroradiology March 2013, 34 (3) 603-608; DOI: https://doi.org/10.3174/ajnr.A3230
Here, the safety and efficacy of mechanical thrombectomy after intravenous therapy failure were assessed in 123 patients with acute MCA occlusions. All patients imaged were within 4.5 hours of onset, had DWI ASPECTS greater than 5, and variable NIHSS scores (8–25). The authors found that mechanical thrombectomy after failure of intravenous thrombolysis improves clinical outcomes at 3 months and could represent an alternative in the management of patients with acute MCA occlusion. Additionally, no symptomatic intracranial hemorrhages were detected in patients treated this way, suggesting this protocol is safe.
Lockwood, D.S.
- FunctionalYou have accessApplication of a Computerized Language Lateralization Index from fMRI by a Group of Clinical NeuroradiologistsS.E. Jones, S.Y. Mahmoud, J. Gonzalez-Martinez, D.S. Lockwood, D. Moon, A.S. Smith, T.W. Stultz, A.L. Tievsky and M.D. PhillipsAmerican Journal of Neuroradiology March 2013, 34 (3) 564-569; DOI: https://doi.org/10.3174/ajnr.A3271
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