Index by author
Sanvito, Francesco
- EDITOR'S CHOICEBrain Tumor ImagingYou have accessQuantification of T2-FLAIR Mismatch in Nonenhancing Diffuse Gliomas Using Digital SubtractionNicholas S. Cho, Francesco Sanvito, Viên Lam Le, Sonoko Oshima, Ashley Teraishi, Jingwen Yao, Donatello Telesca, Catalina Raymond, Whitney B. Pope, Phioanh L. Nghiemphu, Albert Lai, Timothy F. Cloughesy, Noriko Salamon and Benjamin M. EllingsonAmerican Journal of Neuroradiology February 2024, 45 (2) 188-197; DOI: https://doi.org/10.3174/ajnr.A8094
The T2-FLAIR mismatch sign on MR imaging, usually determined by visual assessment, is a highly specific imaging biomarker of IDH-mutant astrocytomas. The authors of this study quantified the degree of T2-FLAIR mismatch in nonenhancing diffuse gliomas. Thresholds of ≥42% T2-FLAIR mismatch volume classified IDH-mutant astrocytoma with a specificity/sensitivity of 100%/19.6% (TCIA) and 100%/31.6% (institutional). They also found that grades 3–4 compared with grade 2 IDH-mutant astrocytomas (P<.05) had a higher percentage T2-FLAIR mismatch volume.
Schartz, Derrek
- EDITOR'S CHOICENeuroimaging Physics/Functional Neuroimaging/CT and MRI TechnologyYou have accessDiffusion-Weighted Imaging Reveals Impaired Glymphatic Clearance in Idiopathic Intracranial HypertensionDerrek Schartz, Alan Finkelstein, Nhat Hoang, Matthew T. Bender, Giovanni Schifitto and Jianhui ZhongAmerican Journal of Neuroradiology February 2024, 45 (2) 149-154; DOI: https://doi.org/10.3174/ajnr.A8088
The diffusivity along the cerebral perivascular spaces (DTI-ALPS technique) and lateral association and projection fibers in patients with IIH were compared with normal controls. Using the degree of diffusivity as a surrogate for glymphatic function, IIH patients were shown to have a significantly lower glymphatic clearance compared with controls (P=.005), with a significant association between declining glymphatic clearance and increasing Frisen papilledema grade (P=.046).
Schifitto, Giovanni
- EDITOR'S CHOICENeuroimaging Physics/Functional Neuroimaging/CT and MRI TechnologyYou have accessDiffusion-Weighted Imaging Reveals Impaired Glymphatic Clearance in Idiopathic Intracranial HypertensionDerrek Schartz, Alan Finkelstein, Nhat Hoang, Matthew T. Bender, Giovanni Schifitto and Jianhui ZhongAmerican Journal of Neuroradiology February 2024, 45 (2) 149-154; DOI: https://doi.org/10.3174/ajnr.A8088
The diffusivity along the cerebral perivascular spaces (DTI-ALPS technique) and lateral association and projection fibers in patients with IIH were compared with normal controls. Using the degree of diffusivity as a surrogate for glymphatic function, IIH patients were shown to have a significantly lower glymphatic clearance compared with controls (P=.005), with a significant association between declining glymphatic clearance and increasing Frisen papilledema grade (P=.046).
Schwarz, Florian
- FELLOWS' JOURNAL CLUBNeurointerventionYou have accessDiscrimination of Hemorrhage and Contrast Media in a Head Phantom on Photon-Counting Detector CT DataFranka Risch, Ansgar Berlis, Thomas Kroencke, Florian Schwarz and Christoph J. MaurerAmerican Journal of Neuroradiology February 2024, 45 (2) 183-187; DOI: https://doi.org/10.3174/ajnr.A8093
Photon-counting detector CT acquires spectral information that allows for material differentiation. CT scan can be separated into the attenuation resulting from remaining iodine and soft tissue, generating contrast media maps and virtual noncontrast series. In this study, the authors demonstrated that PCD-CT can reliably differentiate between blood and iodine and accurately determine several iodine concentrations in an anthropomorphic head phantom.
Seiffge, David J.
- Neurovascular/Stroke ImagingOpen AccessValue of Immediate Flat Panel Perfusion Imaging after Endovascular Therapy (AFTERMATH): A Proof of Concept StudyAdnan Mujanovic, Christoph C. Kurmann, Michael Manhart, Eike I. Piechowiak, Sara M. Pilgram-Pastor, Bettina L. Serrallach, Gregoire Boulouis, Thomas R. Meinel, David J. Seiffge, Simon Jung, Marcel Arnold, Thanh N. Nguyen, Urs Fischer, Jan Gralla, Tomas Dobrocky, Pasquale Mordasini and Johannes KaesmacherAmerican Journal of Neuroradiology February 2024, 45 (2) 163-170; DOI: https://doi.org/10.3174/ajnr.A8103
Serrallach, Bettina L.
- Neurovascular/Stroke ImagingOpen AccessValue of Immediate Flat Panel Perfusion Imaging after Endovascular Therapy (AFTERMATH): A Proof of Concept StudyAdnan Mujanovic, Christoph C. Kurmann, Michael Manhart, Eike I. Piechowiak, Sara M. Pilgram-Pastor, Bettina L. Serrallach, Gregoire Boulouis, Thomas R. Meinel, David J. Seiffge, Simon Jung, Marcel Arnold, Thanh N. Nguyen, Urs Fischer, Jan Gralla, Tomas Dobrocky, Pasquale Mordasini and Johannes KaesmacherAmerican Journal of Neuroradiology February 2024, 45 (2) 163-170; DOI: https://doi.org/10.3174/ajnr.A8103
Seydel, Karl B.
- Pediatric NeuroimagingYou have accessMRI-Based Brain Volume Scoring in Cerebral Malaria Is Externally Valid and Applicable to Lower-Resolution ImagesManu S. Goyal, Lorenna Vidal, Karen Chetcuti, Cowles Chilingulo, Khalid Ibrahim, Jeffrey Zhang, Dylan S. Small, Karl B. Seydel, Nicole O’Brien, Terrie E. Taylor and Douglas G. PostelsAmerican Journal of Neuroradiology February 2024, 45 (2) 205-210; DOI: https://doi.org/10.3174/ajnr.A8098
Shah, G.
- Neuroimaging Physics/Functional Neuroimaging/CT and MRI TechnologyYou have accessRecommended Resting-State fMRI Acquisition and Preprocessing Steps for Preoperative Mapping of Language and Motor and Visual Areas in Adult and Pediatric Patients with Brain Tumors and EpilepsyV.A. Kumar, J. Lee, H.-L. Liu, J.W. Allen, C.G. Filippi, A.I. Holodny, K. Hsu, R. Jain, M.P. McAndrews, K.K. Peck, G. Shah, J.S. Shimony, S. Singh, M. Zeineh, J. Tanabe, B. Vachha, A. Vossough, K. Welker, C. Whitlow, M. Wintermark, G. Zaharchuk and H.I. SairAmerican Journal of Neuroradiology February 2024, 45 (2) 139-148; DOI: https://doi.org/10.3174/ajnr.A8067
Sharma, Manish
- Head and Neck ImagingYou have accessComparison of HASTE versus EPI-Based DWI for Retinoblastoma and Correlation with Prognostic Histopathologic ParametersManish Sharma, Amit Gupta, Manisha Jana, Seema Kashyap, Sameer Bakhshi and Sanjay SharmaAmerican Journal of Neuroradiology February 2024, 45 (2) 198-204; DOI: https://doi.org/10.3174/ajnr.A8084
Sharma, Sanjay
- Head and Neck ImagingYou have accessComparison of HASTE versus EPI-Based DWI for Retinoblastoma and Correlation with Prognostic Histopathologic ParametersManish Sharma, Amit Gupta, Manisha Jana, Seema Kashyap, Sameer Bakhshi and Sanjay SharmaAmerican Journal of Neuroradiology February 2024, 45 (2) 198-204; DOI: https://doi.org/10.3174/ajnr.A8084
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