1. Articles from Yoshinobu Murasato

    1-10 of 10
    1. 3D reconstruction of coronary artery bifurcations from coronary angiography and optical coherence tomography: feasibility, validation, and reproducibility

      3D reconstruction of coronary artery bifurcations from coronary angiography and optical coherence tomography: feasibility, validation, and reproducibility

      The three-dimensional (3D) representation of the bifurcation anatomy and disease burden is essential for better understanding of the anatomical complexity of bifurcation disease and planning of stenting strategies. We propose a novel methodology for 3D reconstruction of coronary artery bifurcations based on the integration of angiography, which provides the backbone of the bifurcation, with optical coherence tomography (OCT), which provides the vessel shape. Our methodology introduces several technical novelties to tackle the OCT frame misalignment, correct positioning of the OCT frames at the carina, lumen surface reconstruction, and merging of bifurcation lumens. The accuracy and reproducibility of the methodology were ...

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    2. Identification of the type of stent with three-dimensional optical coherence tomography: the SPQR study

      Identification of the type of stent with three-dimensional optical coherence tomography: the SPQR study

      Background: The ability of optical coherence tomography (OCT) to identify specific types of stent has never been systematically studied. Methods and results: A series of 212 consecutive patients with OCT from six international centres were retrospectively screened, finding 294 metallic stents or scaffolds in 146 patients. The sample was analysed by two blinded operators, applying a dedicated protocol in 4 steps to identify the type of stent: 1) 3D and automatic strut detection (ASD), 2) 3D tissue view, 3) Longitudinal view with ASD, 4) Mode “stent only” and ASD. The protocol correctly identified 285 stents (96.9%, kappa 0.965 ...

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    3. Efficacy of coronary imaging on bifurcation intervention

      Efficacy of coronary imaging on bifurcation intervention

      During the coronary bifurcation intervention procedure, imaging including intravascular ultrasound and optical coherence tomography is essential to provide precise anatomy of the lesion and morphological information. This consensus document between the Korean Bifurcation Club and the Japanese Bifurcation Club summarizes practical guidelines and current evidences on lesion assessment, device selection, procedural guidance, and the optimization of bifurcation intervention by the imaging.

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

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

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

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

      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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    8. Impact of final kissing balloon inflation on vessel healing following drug-eluting stent implantation: Insight from the optical coherence tomography sub-study of the J-REVERSE trial

      Impact of final kissing balloon inflation on vessel healing following drug-eluting stent implantation: Insight from the optical coherence tomography sub-study of the J-REVERSE trial

      Background We sought to clarify the impact of final kissing inflation (FKI) after single stenting of bifurcation lesions on vessel healing. Methods From the J-REVERSE registry enrolling 303 bifurcation lesions treated with provisional single stenting using sirolimus- (SES) or everolimus-eluting stent (EES), 65 lesions treated with ( n = 30) and without ( n = 35) FKI underwent 9-month follow-up optical coherence tomography. Average stent eccentricity index (SEI: minimum/maximum stent diameter) and neointimal unevenness score (NUS: maximum/average neointimal thickness of the same cross-section) for the proximal, bifurcation, and distal segments were compared between FKI and non-FKI groups. Results At the proximal segment ...

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    9. Differences in Vessel Healing Between Sirolimus- and Everolimus-Eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE Optical Coherence Tomography Substudy

      Differences in Vessel Healing Between Sirolimus- and Everolimus-Eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE Optical Coherence Tomography Substudy

      Background We aimed to clarify the differences in vessel healing after stenting of bifurcation lesions using sirolimus-eluting stents (SESs) or everolimus-eluting stents (EESs). Methods J apanese R egistry Study in Comparison Between Ever olimus-Eluting Stent and S irolimus- E luting Stent for the Bifurcation Lesion (J-REVERSE) is a prospective multicentre registry of 303 bifurcation lesions that were treated with provisional SES or EES with or without final kissing inflation. The first 115 lesions at selected study sites were predefined for inclusion in the optical coherence tomography (OCT) substudy, and 9-month follow-up OCT was conducted in 64 lesions (SES, n = 18 ...

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    10. Differences in Vessel Healing between Sirolimus- and Everolimus-eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE OCT Sub-study

      Differences in Vessel Healing between Sirolimus- and Everolimus-eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE OCT Sub-study

      Background We aimed to clarify the differences in vessel healing after stenting for bifurcation lesions using sirolimus-eluting stent (SES) or everolimus-eluting stent (EES). Methods J-REVERSE is a prospective multicenter registry of 303 bifurcation lesions that were treated with provisional SES or EES with or without final kissing inflation. The first 115 lesions at selected study sites were predefined for inclusion in the optical coherence tomography (OCT) sub-study and 9-month follow-up OCT was conducted in 64 lesions (SES: n = 18, EES: n = 46). In addition to standard OCT parameters, stent eccentricity index (SEI; minimum divided by the maximum stent diameter), neointimal ...

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    1-10 of 10
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    1. (8 articles) Kobe University Graduate School of Medicine
    2. (6 articles) Toshiro Shinke
    3. (5 articles) Junya Shite
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    5. (4 articles) Takayuki Okamura
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    Differences in Vessel Healing between Sirolimus- and Everolimus-eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE OCT Sub-study Differences in Vessel Healing Between Sirolimus- and Everolimus-Eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE Optical Coherence Tomography Substudy Impact of final kissing balloon inflation on vessel healing following drug-eluting stent implantation: Insight from the optical coherence tomography sub-study of the J-REVERSE trial Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting 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 Efficacy of coronary imaging on bifurcation intervention Identification of the type of stent with three-dimensional optical coherence tomography: the SPQR study 3D reconstruction of coronary artery bifurcations from coronary angiography and optical coherence tomography: feasibility, validation, and reproducibility NIRS-IVUS for Differentiating Coronary Plaque Rupture, Erosion and Calcified Nodule in Acute Myocardial Infarction Optical Coherence Tomographic Patterns as Predictors of Structural Outcome After Intravitreal Ranibizumab in Diabetic Macula Edema