ArticleInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences2025
Dyna three-dimensional imaging enables reliable evaluation of neointimal formation after flow diverter treatment.
Article in Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Not yet cited in PubMed.
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Abstract
BackgroundFlow diverter stent (FDS) treatment is an effective option for wide-necked intracranial aneurysms, but adequate neointimal formation and stent apposition are critical to prevent thromboembolic complications. Non-invasive, reliable imaging techniques for assessing neointimal formation remain limited. This study aimed to evaluate the utility of Dyna-3D imaging in assessing neointimal formation after FDS treatment and to compare its performance with conventional 2D-DSA.MethodsThis retrospective study included 61 patients with unruptured intracranial aneurysms treated with FDS between August 2019 and October 2024. Radiological follow-up was performed 3-6 months post-procedure using both 2D-DSA and Dyna-3D imaging. Neointimal coverage was classified into Groups A-C based on the positional relationship between the stent wires and the vessel wall (Group A = wire outside; Group B = partial overlap; Group C = the vessel wall outside). Interobserver agreement, imaging accuracy, and associated clinical factors were analyzed.ResultsComplete neointimal formation (Group A) was identified in 51 cases (83.6%; 95% CI 72.4-90.8) using Dyna-3D and 21 cases (34.4%; 95% CI 23.7-47.0) using 2D-DSA (
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