1. Articles from Kazutaka Uchida

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

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

      Here we report the application of optical frequency domain imaging (OFDI), a new optical coherence tomography (OCT) device, for intravascular visualization in the treatment of a recanalized unruptured internal carotid artery aneurysm that was treated initially by stent-assisted coil embolization. OFDI 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 one year after the procedure revealed perfect healing of the aneurysm and OFDI clearly demonstrated good stent apposition and total endothelialization over the aneurysm neck.

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    2. Potential of new generation double-layer micromesh stent for carotid artery stenting in patients with unstable plaque ∼ A preliminary result using OFDI analysis ∼

      Potential of new generation double-layer micromesh stent for carotid artery stenting in patients with unstable plaque ∼ A preliminary result using OFDI analysis ∼

      Background One of the disadvantages of carotid artery stenting (CAS) is high incidence of distal embolism (DE) during or after the procedure. It has been reported that unstable plaque cases are at high risk of DE and plaque protrusion (PP) after stent placement which will become a cause of post procedural ischemic complications. Objective The purpose of this study was to compare the rate and size of PP between CASPER stent which is a new generation double-layer micromesh stent and conventional stents detected by optical frequency domain imaging (OFDI) and to evaluate the efficacy of CAS with CASPER stent for ...

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