• World Neurosurg · Feb 2021

    Case Reports

    Application of optical frequency domain imaging to recanalized unruptured internal carotid artery aneurysm treated by flow-diverting stent-assisted coiling.

    • Rafael Ivan Neira, Kiyofumi Yamada, Manabu Shirakawa, Kazutaka Uchida, and Shinichi Yoshimura.
    • Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan.
    • World Neurosurg. 2021 Feb 1; 146: 1-5.

    BackgroundHere we report the application of optical frequency domain imaging (OFDI), a new optical coherence tomography device, for intravascular visualization in the treatment of a recanalized unruptured internal carotid artery aneurysm that was treated initially by stent-assisted coil embolization.Case DescriptionOFDI revealed malapposition of the stent and lack of neointimal growth at the aneurysm neck, which was treated by deployment of a Pipeline Embolization Device to overlap the stent. An angiogram performed 1 year after the procedure revealed perfect healing of the aneurysm, and OFDI clearly demonstrated good stent apposition and total endothelialization over the aneurysm neck.ConclusionsOFDI/OCT appears to be a useful diagnostic tool for evaluating stent-strut apposition over the vessel wall and the grade of neointimal endothelialization across the neck of the aneurysm in aneurysmal recanalization.Copyright © 2020. Published by Elsevier Inc.

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