1. Articles from Tatsuhiro Fujimura

    1-7 of 7

    1. Comparison of diagnostic performance in assessing the rewiring position into a jailed side branch between online 3D reconstruction systems version 1.1 and 1.2 derived from optical frequency domain imaging

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      Comparison of diagnostic performance in assessing the rewiring position into a jailed side branch between online 3D reconstruction systems version 1.1 and 1.2 derived from optical frequency domain imaging

      The three-dimensional reconstruction of optical coherence tomography and optical frequency domain imaging (3D-OCT/OFDI) helps optimize bifurcation percutaneous coronary interventions (PCIs) with side branch (SB) dilatation by identifying the optimal rewiring position. 3D-OCT/OFDI’s diagnostic performance for assessing the rewiring position into a jailed SB is unknown. We retrospectively evaluated the diagnostic performances of a conventional (ver. 1.1) and a new (ver. 1.2) online 3D-OFDI reconstruction system based on an offline 3D reconstruction system’s performance. We analyzed 45 patients’ 52 OFDI pullbacks with main vessel stenting followed by rewiring into a jailed SB for coronary bifurcation ...

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      Mentions: Takayuki Okamura

    2. Efficacy of the proximal optimization technique on crossover stenting in coronary bifurcation lesions in the 3D-OCT bifurcation registry

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      Efficacy of the proximal optimization technique on crossover stenting in coronary bifurcation lesions in the 3D-OCT bifurcation registry

      Aim We sought to investigate the efficacy of the proximal optimization technique (POT) on crossover stenting followed by side branch (SB) dilation under optical coherence tomography guidance in a multicenter registry study. Methods and results A total of 135 bifurcation lesions in 134 patients were divided into POT (n = 52) and non-POT groups (n = 83). The POT was performed before SB dilatation (pre-POT; n = 26), finally (final-POT; n = 12), at both timing (re-POT; n = 13), and uncertain (n = 1). There were no significant intergroup differences in the success rate of guide wire re-crossing (GWR) into the optimal cell (72% vs ...

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      Mentions: Junya Shite Kobe University Graduate School of Medicine Takayuki Okamura

    3. Data on two- and three-dimensional optical coherence tomography guidance for the treatment for the bifurcation lesion

      Explore ScienceDirect Cardiology
      Data on two- and three-dimensional optical coherence tomography guidance for the treatment for the bifurcation lesion

      This article comprised the data related to the research article entitled “Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting” (Nagoshi et al., In press) [1] . In this article we reports details about two patterns of guide wire (GW) recrossing position after crossover stenting in bifurcation lesion classified with three-dimensional optical coherence tomography (3D-OCT) (Okamura et al., 2014) [2] and follow-up data about the treatment with percutaneous coronary intervention(PCI) for bifurcation lesion in terms of the two- (2D) or 3D-OCT guidance. Subgroup analysis about differences in the parameters between the ...

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      Mentions: Junya Shite Toshiro Shinke Kobe University Graduate School of Medicine

    4. Impact of Guidewire Recrossing Point into Stent Jailed Side Branch for Optimal Kissing Balloon Dilatation - Corelab 3D Optical Coherence Tomography Analysis

      Explore eurointervention.org Cardiology
      Impact of Guidewire Recrossing Point into Stent Jailed Side Branch for Optimal Kissing Balloon Dilatation - Corelab 3D Optical Coherence Tomography Analysis

      AIMS: We investigated the influence of the guidewire recrossing point on the incidence of incomplete stent apposition (ISA) after kissing balloon dilatation (KBD), and clinical and angiographic outcome at 9 months in a prospective multicenter registry. METHODS AND RESULTS: One hundred five patients underwent single crossover stenting across the side branch (SB) and subsequent KBD. Jailing configuration of the SB orifice and the guidewire recrossing position were assessed by off-line 3D-OCT in the corelab. We defined the cases that achieved both Link-Free carina configuration and the distal recrossing as the LFD group (54 cases), and the other cases were defined ...

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      Mentions: Junya Shite Toshiro Shinke Kobe University Graduate School of Medicine

    5. Serial changes in the side-branch ostial area after main-vessel stenting with kissing balloon inflation for coronary bifurcation lesions, assessed by 3D optical coherence tomography

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      Serial changes in the side-branch ostial area after main-vessel stenting with kissing balloon inflation for coronary bifurcation lesions, assessed by 3D optical coherence tomography

      Aims We evaluated the influence of the jailing configuration and guidewire rewiring position in front of the side-branch (SB) ostium before kissing balloon inflation (KBI) against side-branch ostial area (SBOA) at follow-up using 3D optical coherence tomography (3D-OCT). Methods and results We retrospectively analysed the cases of the 37 consecutive patients who underwent main-vessel (MV) stenting with KBI for coronary bifurcation lesion under OCT guidance and the follow-up OCT 6–12 months. We divided the patients into two groups, considering both the jailing configuration and the rewiring position by 3D-OCT. We defined the cases that achieved both the distal rewiring ...

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      Mentions: Takayuki Okamura

    6. Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting

      Explore International Journal of Cardiology Cardiology
      Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting

      Background For the treatment of coronary bifurcation lesions, optimal guidewire (GW) recrossing after main vessel stenting is important for good stent apposition at the side branch (SB) orifice in kissing balloon inflation (KBI). Methods We analyzed 150 bifurcation lesions treated with single stenting following KBI in the three-dimensional optical coherence tomography (3D-OCT) bifurcation registry study (2015–16) and a single center experience (2012–16). OCT examination was performed after GW recrossing to the SB and after KBI. Patients were divided into two-dimensional (2D, n = 78) and 3D groups ( n = 72) according to 2D- or 3D-OCT guidance. GW recrossing position, jailing ...

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      Mentions: Junya Shite Toshiro Shinke Kobe University Graduate School of Medicine

    7. Three-dimensional reconstruction of optical coherence tomography for improving bifurcation stenting

      Explore ScienceDirect Cardiology
      Three-dimensional reconstruction of optical coherence tomography for improving bifurcation stenting

      Coronary bifurcation lesions are encountered in approximately 15–20% of all percutaneous coronary interventions (PCIs) [1] . Bifurcation PCI has historically been associated with lower procedural success rates and higher long-term adverse event rates compared with PCI for non-bifurcation lesions. In the drug-eluting stent (DES) era, the clinical outcomes for bifurcation PCI have improved considerably [2] . However, bifurcation stenting is still technically challenging and associated with an increased risk of stent thrombosis [3] . The conventional coronary stent is a small mesh-patterned tube, usually linear in shape. To adapt the DES for morphological variation of bifurcation, various techniques have been developed [4 ...

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      Mentions: Abbot Takayuki Okamura
    1-7 of 7
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    1. (7 articles) Takayuki Okamura
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    Three-dimensional reconstruction of optical coherence tomography for improving bifurcation stenting Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting Serial changes in the side-branch ostial area after main-vessel stenting with kissing balloon inflation for coronary bifurcation lesions, assessed by 3D optical coherence tomography Impact of Guidewire Recrossing Point into Stent Jailed Side Branch for Optimal Kissing Balloon Dilatation - Corelab 3D Optical Coherence Tomography Analysis Data on two- and three-dimensional optical coherence tomography guidance for the treatment for the bifurcation lesion Efficacy of the proximal optimization technique on crossover stenting in coronary bifurcation lesions in the 3D-OCT bifurcation registry Comparison of diagnostic performance in assessing the rewiring position into a jailed side branch between online 3D reconstruction systems version 1.1 and 1.2 derived from optical frequency domain imaging University of Washington Receives NIH Grant for Optical Coherence Elastography of Corneal Dynamics Duke University Receives NIH Grant for Intrasurgical OCT Image-Guided Robot Assist Device for Partial Thickness Corneal Translation Optical Coherence Tomography Angiography in Glaucoma Care Imaging of Atrioventricular Nodal Conduction Tissue in Porcine Hearts Using Optical Coherence Tomography Penetration capability of near infrared Laguerre–Gaussian beams through highly scattering media