ArticleAJNR. American journal of neuroradiology2018
The Role of Hemodynamics in Intracranial Bifurcation Arteries after Aneurysm Treatment with Flow-Diverter Stents.
Article in AJNR. American journal of neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 8 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Traditional Approach Versus Flow Diverter for Unruptured Intracranial Wide-neck Bifurcation Aneurysms: a Prospective International Multicenter Randomized Controlled Study (FD-BWA Study)
Early Complications After Flow Diverter Versus Stent-Assisted Coiling for Unruptured Wide-Neck Intracranial Bifurcation Aneurysms: A Prospective Real-World Cohort Study
Who cites it
8 citing papers in PubMed.
- Neqstent coil-assisted flow diverter (NQS) for the treatment of bifurcation aneurysms: the coil-assisted flow diversion safety and performance study (CAFI).Journal of neurointerventional surgery · 2024Trial
- Introducing the Caliber-Flow Status Scale (CFSS): a novel tool for assessing covered cortical branch status after flow diverter treatment of middle cerebral artery aneurysms.Journal of neurointerventional surgery · 2026Article
- A Potential Predictor of Proximal Flow-Diverter Stent Jailed Artery Stenosis: Distal to Proximal Artery Diameter Ratio.International journal of medical sciences · 2025Article
- Safety and Technical Feasibility of Staged Flow Diverter Placement Following Coil Embolization: A Case Series Including Anatomically Challenging Aneurysms.Journal of neuroendovascular therapy · 2025Article
- Plasticity of the adult circle of Willis in response to flow diversion stents.Surgical neurology international · 2023Article
- Asymmetry of P1 and vertebral arteries is not related to basilar tip aneurysm development or rupture.Acta neurochirurgica · 2021Article
- Safety Evaluation and Flow Modification in the Anterior Cerebral Artery after Pipeline Embolization Device Deployment across the Internal Carotid Artery Terminus.BioMed research international · 2021Observational
- Efficacy and Safety of Flow-Diverter Therapy for Recurrent Aneurysms after Stent-Assisted Coiling.AJNR. American journal of neuroradiology · 2020Article
Corrections and comments
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeTreatment of intracranial bifurcation aneurysms with flow-diverter stents can lead to caliber changes of the distal vessels in a subacute phase. This study aims to evaluate whether local anatomy and flow disruption induced by flow-diverter stents are associated with vessel caliber changes in intracranial bifurcations. MATERIALS AND
methodsRadiologic images and demographic data were acquired for 25 patients with bifurcation aneurysms treated with flow-diverter stents. Whisker plots and Mann-Whitney rank sum tests were used to evaluate if anatomic data and caliber changes could be linked. Symmetry/asymmetry were defined as diameter ratio 1 = symmetric and diameter ratio <1 = asymmetric. Computational fluid dynamics was performed on idealized and patient-specific anatomies to evaluate flow changes induced by flow-diverter stents in the jailed vessel.
resultsStatistical analysis identified a marked correspondence between asymmetric bifurcation and caliber change. Symmetry ratios were lower for cases showing narrowing or subacute occlusion (medium daughter vessel diameter ratio = 0.59) compared with cases with posttreatment caliber conservation (medium daughter vessel diameter ratio = 0.95). Computational fluid dynamics analysis in idealized and patient-specific anatomies showed that wall shear stress in the jailed vessel was more affected when flow-diverter stents were deployed in asymmetric bifurcations (diameter ratio <0.65) and less affected when deployed in symmetric anatomies (diameter ratio ∼1.00).
conclusionsAnatomic data analysis showed statistically significant correspondence between caliber changes and bifurcation asymmetry characterized by diameter ratio <0.7 (
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