American Journal of Neuroradiology
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Last. Ning MaH-Index: 17
view all 13 authors...
BACKGROUND AND PURPOSE Chronic carotid artery occlusion remains a poorly understood risk factor for subsequent stroke, and potential revascularization is dependent on understanding the anatomy and nature of the occlusion. Luminal imaging cannot assess the nature of an occlusion, so the internal structure of the occlusion must be inferred. The present study examines the signal characteristics of symptomatic and asymptomatic carotid occlusion that may point to management differentiation. MATERIALS...
#1S. Subramanian (Boston Children's Hospital)
#2Asthik Biswas (University of Toronto)H-Index: 2
Last. Kshitij Mankad (Great Ormond Street Hospital)H-Index: 21
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BACKGROUND AND PURPOSE: null Pathogenic variants in the ACTA2 gene cause a distinctive arterial phenotype that has recently been described to be associated with brain malformation. Our objective was to further characterize gyral abnormalities in patients with ACTA2 pathogenic variants as per the 2020 consensus recommendations for the definition and classification of malformations of cortical development. null MATERIALS AND METHODS: null We performed a retrospective, multicentric review of patien...
Last. Yvonne W. LuiH-Index: 24
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BACKGROUND AND PURPOSE: null Quantitative volumetric segmentation of gliomas has important implications for diagnosis, treatment, and prognosis. We present a deep-learning model that accommodates automated preoperative and postoperative glioma segmentation with a pipeline for clinical implementation. Developed and engineered in concert, the work seeks to accelerate clinical realization of such tools. null MATERIALS AND METHODS: null A deep learning model, autoencoder regularization–cascaded anis...
#1Lotfi Hacein-Bey (UCD: University of California, Davis)H-Index: 19
The article by Ide et al[1][1] in this issue of the American Journal of Neuroradiology has significant relevancy from both theoretic and practical perspectives. The cerebral venous system develops through a series of complex stages, some that remain incompletely understood.[2][2] In the early
#1Seong-Yun Jeong (UOU: University of Ulsan)H-Index: 19
#2Ji-Yun Park (UOU: University of Ulsan)H-Index: 2
Last. Hyuna Kim (UOU: University of Ulsan)H-Index: 7
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Background and purpose null The microenvironment of lymphomas is known to be highly variable and closely associated with treatment resistance and survival. We tried to develop a physiologic MR imaging-based spatial habitat analysis to identify regions associated with treatment resistance to facilitate the prediction of tumor response after initial chemotherapy in patients with primary central nervous system lymphoma. null Materials and methods null Eighty-one patients with pathologically confirm...
Last. Waleed BrinjikjiH-Index: 45
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BACKGROUND AND PURPOSE: null Research suggests a connection between idiopathic intracranial hypertension and the cerebral glymphatic system. We hypothesized that visible dilated perivascular spaces, possible glymphatic pathways, would be more prevalent in patients with idiopathic intracranial hypertension. This prevalence could provide a biomarker and add evidence to the glymphatic connection in the pathogenesis of idiopathic intracranial hypertension. null MATERIALS AND METHODS: null We evaluat...
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BACKGROUND AND PURPOSE: null In this prospective, multicenter, multireader study, we evaluated the impact on both image quality and quantitative image-analysis consistency of 60% accelerated volumetric MR imaging sequences processed with a commercially available, vendor-agnostic, DICOM-based, deep learning tool (SubtleMR) compared with that of standard of care. null MATERIALS AND METHODS: null Forty subjects underwent brain MR imaging examinations on 6 scanners from 5 institutions. Standard of c...
#1Johanna M. Ospel (USB: University Hospital of Basel)H-Index: 13
#2Fouzi BalaH-Index: 1
Last. Mayank Goyal (UoC: University of Calgary)H-Index: 59
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Background and purpose null Accurate and reliable detection of medium-vessel occlusions is important to establish the diagnosis of acute ischemic stroke and initiate appropriate treatment with intravenous thrombolysis or endovascular thrombectomy. However, medium-vessel occlusions are often challenging to detect, especially for unexperienced readers. We aimed to evaluate the accuracy and interrater agreement of the detection of medium-vessel occlusions using single-phase and multiphase CTA. null...
#1Tetsuya Hashimoto (UCLA: University of California, Los Angeles)
#2Takenobu Kunieda (UCLA: University of California, Los Angeles)
Last. David S Liebeskind (UCLA: University of California, Los Angeles)H-Index: 69
view all 12 authors...
BACKGROUND AND PURPOSE: null Acute leptomeningeal collateral flow is vital for maintaining perfusion to penumbral tissue in acute ischemic stroke caused by large-vessel occlusion. In this study, we aimed to investigate the clinically available indicators of leptomeningeal collateral variability in embolic large-vessel occlusion. null MATERIALS AND METHODS: null Among prospectively registered consecutive patients with acute embolic anterior circulation large-vessel occlusion treated with thrombec...
Last. Tetsuyoshi HoriuchiH-Index: 20
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It is with much consideration that we have read the article “Distal Transradial Access for Diagnostic Cerebral Angiography and Neurointervention: Systematic Review and Meta-Analysis,” by Hoffman et al.[1][1] We completely agree with the authors’ conclusion that early experience with distal
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