ArticleAJNR. American journal of neuroradiology2015
Ultra-high-field MR imaging in polymicrogyria and epilepsy.
Article in AJNR. American journal of neuroradiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.
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Who cites it
32 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Utility of 7 Tesla Magnetic Resonance Imaging in Patients With Epilepsy: A Systematic Review and Meta-Analysis.Frontiers in neurology · 2021Pooled it
- Enhanced detection of subtle cortical abnormalities in focal epilepsy using 7 T MRI surface-based models and graph neural networks.Neuroradiology · 2026Article
- Detection of venous angiomas on susceptibility enhanced magnetic resonance imaging in patients with seizures.Neurosciences (Riyadh, Saudi Arabia) · 2025Article
- Optimizing T2* imaging for adolescent and young adult patients at 7 T.Pediatric radiology · 2025Article
- Clinical 7 Tesla magnetic resonance imaging: Impact and patient value in neurological disorders.Journal of internal medicine · 2025Review
- Case report: Exploring chemoradiotherapy-induced leukoencephalopathy with 7T imaging and quantitative susceptibility mapping.Frontiers in neurology · 2024Article
- Use of a Commercial 7-T MRI Scanner for Clinical Brain Imaging: Indications, Protocols, Challenges, and Solutions-A Single-Center Experience.AJR. American journal of roentgenology · 2023Article
- Emerging Trends in Neuroimaging of Epilepsy.Epilepsy currents · 2021Article
- 7T Epilepsy Task Force Consensus Recommendations on the Use of 7T MRI in Clinical Practice.Neurology · 2021Review
- UltraHigh Field MR Imaging in Epilepsy.Magnetic resonance imaging clinics of North America · 2021Review
- Radiological and Clinical Value of 7T MRI for Evaluating 3T-Visible Lesions in Pharmacoresistant Focal Epilepsies.Frontiers in neurology · 2021Article
- Neonatal Developmental Venous Anomalies: Clinicoradiologic Characterization and Follow-Up.AJNR. American journal of neuroradiology · 2020Article
- Definitions and classification of malformations of cortical development: practical guidelines.Brain : a journal of neurology · 2020Review
- Introduction of Ultra-High-Field MR Imaging in Infants: Preparations and Feasibility.AJNR. American journal of neuroradiology · 2020Article
- Epilepsy Lesion Localization is not Predicted by Developmental Venous Anomaly Location or its FDG-PET Metabolic Activity.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2020Article
- Cerebral Corticoarterial Malformations : A Case Series of Unilateral Polymicrogyria and Ipsilateral Arterial Dysplasia.Clinical neuroradiology · 2020Article
- Advanced neuroimaging techniques for evaluating pediatric epilepsy.Clinical and experimental pediatrics · 2020Article
- Ultra-High-Field Targeted Imaging of Focal Cortical Dysplasia: The Intracortical Black Line Sign in Type IIb.AJNR. American journal of neuroradiology · 2019Article
- Ultrahigh field MR Neuroimaging.Topics in magnetic resonance imaging : TMRI · 2019Article
- Clinical 7 T MRI: Are we there yet? A review about magnetic resonance imaging at ultra-high field.The British journal of radiology · 2019Review
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
background and purposePolymicrogyria is a malformation of cortical development that is often identified in children with epilepsy or delayed development. We investigated in vivo the potential of 7T imaging in characterizing polymicrogyria to determine whether additional features could be identified. MATERIALS AND
methodsTen adult patients with polymicrogyria previously diagnosed by using 3T MR imaging underwent additional imaging at 7T. We assessed polymicrogyria according to topographic pattern, extent, symmetry, and morphology. Additional imaging sequences at 7T included 3D T2* susceptibility-weighted angiography and 2D tissue border enhancement FSE inversion recovery. Minimum intensity projections were used to assess the potential of the susceptibility-weighted angiography sequence for depiction of cerebral veins.
resultsAt 7T, we observed perisylvian polymicrogyria that was bilateral in 6 patients, unilateral in 3, and diffuse in 1. Four of the 6 bilateral abnormalities had been considered unilateral at 3T. While 3T imaging revealed 2 morphologic categories (coarse, delicate), 7T susceptibility-weighted angiography images disclosed a uniform ribbonlike pattern. Susceptibility-weighted angiography revealed numerous dilated superficial veins in all polymicrogyric areas. Tissue border enhancement imaging depicted a hypointense line corresponding to the gray-white interface, providing a high definition of the borders and, thereby, improving detection of the polymicrogyric cortex.
conclusions7T imaging reveals more anatomic details of polymicrogyria compared with 3T conventional sequences, with potential implications for diagnosis, genetic studies, and surgical treatment of associated epilepsy. Abnormalities of cortical veins may suggest a role for vascular dysgenesis in pathogenesis.
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