Index by author
Seres, P.
- ADULT BRAINOpen AccessCognitive Implications of Deep Gray Matter Iron in Multiple SclerosisE. Fujiwara, J.A. Kmech, D. Cobzas, H. Sun, P. Seres, G. Blevins and A.H. WilmanAmerican Journal of Neuroradiology May 2017, 38 (5) 942-948; DOI: https://doi.org/10.3174/ajnr.A5109
Sheikh-bahaei, N.
- ADULT BRAINOpen AccessCan MRI Visual Assessment Differentiate the Variants of Primary-Progressive Aphasia?S.A. Sajjadi, N. Sheikh-Bahaei, J. Cross, J.H. Gillard, D. Scoffings and P.J. NestorAmerican Journal of Neuroradiology May 2017, 38 (5) 954-960; DOI: https://doi.org/10.3174/ajnr.A5126
Sheth, S.A.
- EDITOR'S CHOICEADULT BRAINYou have accessA Multiparametric Model for Mapping Cellularity in Glioblastoma Using Radiographically Localized BiopsiesP.D. Chang, H.R. Malone, S.G. Bowden, D.S. Chow, B.J.A. Gill, T.H. Ung, J. Samanamud, Z.K. Englander, A.M. Sonabend, S.A. Sheth, G.M. McKhann, M.B. Sisti, L.H. Schwartz, A. Lignelli, J. Grinband, J.N. Bruce and P. CanollAmerican Journal of Neuroradiology May 2017, 38 (5) 890-898; DOI: https://doi.org/10.3174/ajnr.A5112
Ninety-one localized biopsies were obtained from 36 patients with glioblastoma. Signal intensities corresponding to these samples were derived from T1-postcontrast subtraction, T2-FLAIR, and ADC sequences by using an automated coregistration algorithm. Cell density was calculated for each specimen by using an automated cell-counting algorithm. T2-FLAIR and ADC sequences were inversely correlated with cell density. T1-postcontrast subtraction was directly correlated with cell density. The authors conclude that the model illustrates a quantitative and significant relationship between MR signal and cell density. Applying this relationship over the entire tumor volume allows mapping of the intratumoral heterogeneity for both enhancing core and nonenhancing margins.
Silva Junior, M.L.M.
- SPINEOpen AccessSpectrum of Spinal Cord, Spinal Root, and Brain MRI Abnormalities in Congenital Zika Syndrome with and without ArthrogryposisM.F.V.V. Aragao, A.M. Brainer-Lima, A.C. Holanda, V. van der Linden, L. Vasco Aragão, M.L.M. Silva Júnior, C. Sarteschi, N.C.L. Petribu and M.M. ValençaAmerican Journal of Neuroradiology May 2017, 38 (5) 1045-1053; DOI: https://doi.org/10.3174/ajnr.A5125
Simon, S.
- EDITOR'S CHOICEINTERVENTIONALYou have accessRisk of Thrombus Fragmentation during Endovascular Stroke TreatmentJ. Kaesmacher, T. Boeckh-Behrens, S. Simon, C. Maegerlein, J.F. Kleine, C. Zimmer, L. Schirmer, H. Poppert and T. HuberAmerican Journal of Neuroradiology May 2017, 38 (5) 991-998; DOI: https://doi.org/10.3174/ajnr.A5105
The authors evaluated the potential relationship between thrombus histology and clot stability in 85 patients with anterior circulation stroke treated with thrombectomy. The number and location of emboli after retrieving the primary thrombus, the number of maneuvers, and TICI scores were evaluated. H&E and neutrophil elastase staining of retrieved clots was performed. An inverse correlation between maneuvers required for thrombus retrieval and the number of distal and intermediate emboli was observed. Younger patients were at higher risk for periprocedural thrombus fragmentation. Bridging thrombolysis tended to be associated with fewer maneuvers but more emboli. They conclude that younger age, easy-to-retrieve thrombi, and bridging thrombolysis may be risk factors for periprocedural thrombus fragmentation. Higher neutrophil levels in the thrombus tissue were related to an increased risk of periprocedural thrombus fragmentation.
Sisti, M.B.
- EDITOR'S CHOICEADULT BRAINYou have accessA Multiparametric Model for Mapping Cellularity in Glioblastoma Using Radiographically Localized BiopsiesP.D. Chang, H.R. Malone, S.G. Bowden, D.S. Chow, B.J.A. Gill, T.H. Ung, J. Samanamud, Z.K. Englander, A.M. Sonabend, S.A. Sheth, G.M. McKhann, M.B. Sisti, L.H. Schwartz, A. Lignelli, J. Grinband, J.N. Bruce and P. CanollAmerican Journal of Neuroradiology May 2017, 38 (5) 890-898; DOI: https://doi.org/10.3174/ajnr.A5112
Ninety-one localized biopsies were obtained from 36 patients with glioblastoma. Signal intensities corresponding to these samples were derived from T1-postcontrast subtraction, T2-FLAIR, and ADC sequences by using an automated coregistration algorithm. Cell density was calculated for each specimen by using an automated cell-counting algorithm. T2-FLAIR and ADC sequences were inversely correlated with cell density. T1-postcontrast subtraction was directly correlated with cell density. The authors conclude that the model illustrates a quantitative and significant relationship between MR signal and cell density. Applying this relationship over the entire tumor volume allows mapping of the intratumoral heterogeneity for both enhancing core and nonenhancing margins.
Sogani, S.K.
- ADULT BRAINYou have accessMultiparametric Evaluation in Differentiating Glioma Recurrence from Treatment-Induced Necrosis Using Simultaneous 18F-FDG-PET/MRI: A Single-Institution Retrospective StudyA. Jena, S. Taneja, A. Jha, N.K. Damesha, P. Negi, G.K. Jadhav, S.M. Verma and S.K. SoganiAmerican Journal of Neuroradiology May 2017, 38 (5) 899-907; DOI: https://doi.org/10.3174/ajnr.A5124
Sonabend, A.M.
- EDITOR'S CHOICEADULT BRAINYou have accessA Multiparametric Model for Mapping Cellularity in Glioblastoma Using Radiographically Localized BiopsiesP.D. Chang, H.R. Malone, S.G. Bowden, D.S. Chow, B.J.A. Gill, T.H. Ung, J. Samanamud, Z.K. Englander, A.M. Sonabend, S.A. Sheth, G.M. McKhann, M.B. Sisti, L.H. Schwartz, A. Lignelli, J. Grinband, J.N. Bruce and P. CanollAmerican Journal of Neuroradiology May 2017, 38 (5) 890-898; DOI: https://doi.org/10.3174/ajnr.A5112
Ninety-one localized biopsies were obtained from 36 patients with glioblastoma. Signal intensities corresponding to these samples were derived from T1-postcontrast subtraction, T2-FLAIR, and ADC sequences by using an automated coregistration algorithm. Cell density was calculated for each specimen by using an automated cell-counting algorithm. T2-FLAIR and ADC sequences were inversely correlated with cell density. T1-postcontrast subtraction was directly correlated with cell density. The authors conclude that the model illustrates a quantitative and significant relationship between MR signal and cell density. Applying this relationship over the entire tumor volume allows mapping of the intratumoral heterogeneity for both enhancing core and nonenhancing margins.
Sorte, D.E.
- FELLOWS' JOURNAL CLUBSPINEYou have accessIntraforaminal Location of Thoracolumbar Radicular Arteries Providing an Anterior Radiculomedullary Artery Using Flat Panel Catheter AngiotomographyL. Gregg, D.E. Sorte and P. GailloudAmerican Journal of Neuroradiology May 2017, 38 (5) 1054-1060; DOI: https://doi.org/10.3174/ajnr.A5104
Ninety-four flat panel catheter angiotomography acquisitions obtained during the selective injection of intersegmental arteries providing an anterior radiculomedullary artery were reviewed. The location of radicular arteries could be ascertained in 78/94 flat panel catheter angiotomography acquisitions. Fifty-three acquisitions (67.9%) were on the left side, and 25 (32.1%), on the right, between T2 and L3. The arteries were found in the anterosuperior quadrant in 75 cases (96.2%), in the posterosuperior quadrant in 2 (2.6%), and in the anteroinferior quadrant in 1(1.3%). Needle placement in the anterosuperior quadrant (subpedicular approach) should be avoided during transforaminal epidural steroid injection. The authors advocate the posterolateral approach that allows placing the needle tip away from the documented position of ARMA contributors within the neural foramen, reducing the risk of intra-arterial injection or injury to the spinal vascularization.
Spence, J.D.
- You have access3D Ultrasound for Imaging and Quantifying Carotid UlcersJ.D. SpenceAmerican Journal of Neuroradiology May 2017, 38 (5) E34-E36; DOI: https://doi.org/10.3174/ajnr.A5130