1. Hiromasa Otake

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    1. Mentioned In 56 Articles

    2. Feasibility of morphological assessment of coronary artery calcification with electrocardiography-gated non-contrast computed tomography: a comparative study with optical coherence tomography

      Explore Home - Springer Cardiology
      Feasibility of morphological assessment of coronary artery calcification with electrocardiography-gated non-contrast computed tomography: a comparative study with optical coherence tomography
      To investigate the feasibility of pre-procedural morphological assessment of coronary artery calcification in severely calcified lesions with electrocardiography (ECG)-gated non-contrast computed tomography (CT). Severely calcified coronary arteries in patients who underwent ECG-gated non-contrast CT prior to optical coherence tomography (OCT)-guided percutaneous coronary intervention (PCI) were studied retrospectively. CT and OCT data were co-registered by marking landmark structures such as side branches and reviewed side by side with cross-sectional ...
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      Mentions: Hiroyuki Kawamori Ken-ichi Hirata Kobe University Graduate School of Medicine

    3. Comparison of serial optical coherence tomography imaging following aggressive stent expansion technique: insight from the MECHANISM study

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      Comparison of serial optical coherence tomography imaging following aggressive stent expansion technique: insight from the MECHANISM study
      To compare early vascular healing following cobalt-chromium everolimus-eluting stent (CoCr-EES) implantation between groups with or without aggressive stent expansion in patients treated by CoCr-EES for stable coronary artery disease (CAD). Seventy-one stable CAD lesions underwent CoCr-EES implantation and analysis of serial optical coherence tomography (OCT) images obtained post-procedure and at early-term (1- or 3-month) follow-up. The endpoints of this study were neointimal thickness at the time of 1- or 3-month ...
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      Mentions: Toshiro Shinke Kobe University Graduate School of Medicine Hiromasa Otake

    4. Association of Cholesterol Uptake Capacity, a Novel Indicator for HDL Functionality, and Coronary Plaque Properties: An Optical Coherence Tomography-based Observational Study

      Explore ScienceDirect Cardiology
      Association of Cholesterol Uptake Capacity, a Novel Indicator for HDL Functionality, and Coronary Plaque Properties: An Optical Coherence Tomography-based Observational Study
      Background Cholesterol efflux from atherosclerotic lesion is a key function of high-density lipoprotein (HDL). Recently, we established a simple, high-throughput, cell-free assay to evaluate the capacity of HDL to accept additional cholesterol, which is herein referred to as cholesterol uptake capacity (CUC). Objective To clarify the cross-sectional relationship between CUC and coronary plaque properties. Methods We enrolled 135 patients to measure CUC and assess the morphological features of angiographic stenosis ...
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      Mentions: Gunma University Ken-ichi Hirata Toshiro Shinke

    5. Cut-off value of strut-vessel distance for the resolution of acute incomplete stent apposition in the early phase using serial optical coherence tomography after cobalt-chromium everolimus-eluting stent implantation

      Explore ScienceDirect Cardiology
      Cut-off value of strut-vessel distance for the resolution of acute incomplete stent apposition in the early phase using serial optical coherence tomography after cobalt-chromium everolimus-eluting stent implantation
      Objective The purpose of this study was to identify a cut-off value to predict the resolution of incomplete-stent-apposition (ISA) after cobalt-chromium everolimus-eluting stent (CoCr-EES) implantation at early follow-up. Background To date, appropriate stent apposition at the acute period using intracoronary imaging has been recommended because persistent ISA is considered to be a risk factor for stent thrombosis. We examined the indices for resolving acute ISA. In particular, we determined the ...
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      Mentions: Toshiro Shinke Kobe University Graduate School of Medicine Hiromasa Otake

    6. Efficacy of optical frequency-domain imaging in detecting peripheral artery disease: a single-center open-label, single-arm study protocol

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      Efficacy of optical frequency-domain imaging in detecting peripheral artery disease: a single-center open-label, single-arm study protocol
      Intravascular optical coherence tomography is a high-resolution intracoronary imaging modality, providing a microscopic image of intravascular features. However, it has lower penetration depth than intravascular ultrasound. Recently, a second-generation optical frequency-domain imaging (OFDI) technique has been developed to provide greater penetration depth and faster pullback speed. However, there is little evidence supporting the efficacy of OFDI in patients with peripheral artery disease (PAD) undergoing endovascular treatment (EVT). We aimed to ...
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      Mentions: Hiroyuki Kawamori Ken-ichi Hirata Toshiro Shinke

    7. Expert consensus statement for quantitative measurement and morphological assessment of optical coherence tomography

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      Expert consensus statement for quantitative measurement and morphological assessment of optical coherence tomography
      In this document, the methods for the quantitative measurement and morphological assessment of optical coherence tomography (OCT)/optical frequency domain imaging images (OFDI) are briefly summarized. The focus is on the clinical application of OCT/OFDI to guide percutaneous coronary interventions.
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      Mentions: Wakayama Medical University Kenichi Fujii Takashi Kubo

    8. Early and mid-term vascular responses to optical coherence tomography guided everolimus-eluting stent implantation in stable coronary artery disease

      Explore Canadian Journal of Cardiology Cardiology
      Early and mid-term vascular responses to optical coherence tomography guided everolimus-eluting stent implantation in stable coronary artery disease
      Background Analysis of pooled clinical data has shown the safety of 3 months of dual antiplatelet therapy (DAPT) with everolimus-eluting cobaltchromium stents (Co-Cr EESs). This study evaluated early and mid-term vascular responses to Co-Cr EESs in patients with stable coronary artery disease (CAD). Methods The MECHANISM-Elective trial (NCT02014818) is a multicenter optical coherence tomography (OCT) registry. Enrolled patients were evaluated by OCT immediately after EES implantation (post), were prospectively allocated ...
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      Mentions: Wakayama Medical University Takashi Kubo Takashi Akasaka

    9. Favorable early vessel healing after everolimus-eluting stent implantation: 3-, 6-, and 12-month follow-up of optical coherence tomography

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      Favorable early vessel healing after everolimus-eluting stent implantation: 3-, 6-, and 12-month follow-up of optical coherence tomography
      Background Although a prospective randomized control study revealed that 3-month dual anti-platelet therapy (DAPT) is safe and does not compromise the efficacy of everolimus-eluting stent (EES) in selected patients, detailed vessel healing at early phase after EES implantation has yet to be investigated in Japanese patients. Methods and results A total of 27 lesions in 19 patients treated with EES were serially evaluated by using optical coherence tomography (OCT) at ...
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      Mentions: Ken-ichi Hirata Junya Shite Toshiro Shinke

    10. The Efficacy of Alirocumab for Thin-cap fIbroatheroma in Patients With Coronary Artery Disease Estimated by Optical Coherence Tomography

      Explore Home - ClinicalTrials.gov Cardiology , Clinical Trials
      The Efficacy of Alirocumab for Thin-cap fIbroatheroma in Patients With Coronary Artery Disease Estimated by Optical Coherence Tomography
      The purpose of this study is to show that alirocumab with statin therapy have a s tronger stabilizing effect on vulnerable plaque in coronary artery disease than statin alone administration. The investigators investigate to evaluate the efficacy of alirocumab for vulnerable plaque. The investigators enrolled the patient with standard statin therapy who were detected vulnerable plaque by optical coherence tomography, and categorized into two group; the patients with alirocumab and ...
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      Mentions: Kobe University Graduate School of Medicine Hiromasa Otake

    11. Lumen Boundaries Extracted from Coronary Computed Tomography Angiography on Computed Fractional Flow Reserve (FFRCT): Validation with Optical Coherence Tomography

      Explore eurointervention.org Cardiology
      Lumen Boundaries Extracted from Coronary Computed Tomography Angiography on Computed Fractional Flow Reserve (FFRCT): Validation with Optical Coherence Tomography
      Aims: To evaluate the accuracy of minimal lumen area (MLA) by coronary computed tomography angiography (cCTA) and its impact on fractional flow reserve (FFRCT). Methods and results: Fifty-seven patients (118 lesions, 72 vessels) who underwent cCTA and optical coherence tomography (OCT) were enrolled. OCT and cCTA were co-registered and MLAs were measured with both modalities. FFROCT was calculated using OCT-updated models with cCTA-based lumen geometry replaced by OCT-derived geometry. Lesions ...
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      Mentions: Ken-ichi Hirata Toshiro Shinke Kobe University Graduate School of Medicine

    12. Impact of CD14++CD16+ monocytes on coronary plaque vulnerability assessed by optical coherence tomography in coronary artery disease patients with well-regulated lipid levels

      Explore atherosclerosis-journal.com Cardiology
      Impact of CD14++CD16+ monocytes on coronary plaque vulnerability assessed by optical coherence tomography in coronary artery disease patients with well-regulated lipid levels
      Background and aims This study examined the impact of CD14 ++ CD16 + monocytes on coronary plaque vulnerability, as assessed by optical coherence tomography (OCT), and investigated their association with daily glucose fluctuation. Although increased CD14 ++ CD16 + monocyte levels have been reported to increase cardiovascular events, their impact on coronary plaque vulnerability in coronary artery disease (CAD) patients with or without diabetes mellitus (DM) remains unclear. Methods This prospective observational study included ...
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      Mentions: Ken-ichi Hirata Toshiro Shinke Kobe University Graduate School of Medicine

    13. Early vascular responses to everolimus-eluting cobalt–chromium stent in the culprit lesions of st-elevation myocardial infarction: results from a multicenter prospective optical coherence tomography study (MECHANISM-AMI 2-week follow-up study)

      Explore Home - Springer Cardiology
      Early vascular responses to everolimus-eluting cobalt–chromium stent in the culprit lesions of st-elevation myocardial infarction: results from a multicenter prospective optical coherence tomography study (MECHANISM-AMI 2-week follow-up study)
      The use of cobaltchromium everolimus-eluting stents (CoCr-EES) for ST-segment elevation myocardial infarction (STEMI) reduces the incidence of stent thrombosis compared with bare metal stents, and a substantial difference is apparent in the initial 2 weeks. However, vascular behavior during this early period remains unclear. This was a prospective study (MECHANISM-AMI-2W) to investigate early vascular responses in STEMI patients immediately after CoCr-EES implantation and at 2-week follow-up using frequency domain-optical coherence ...
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      Mentions: Toshiro Shinke Kobe University Graduate School of Medicine Hiromasa Otake

    14. Optical Frequency Domain Imaging Versus Intravascular Ultrasound in Percutaneous Coronary Intervention (OPINION Trial) : Results From the OPINION Imaging Study

      Explore ScienceDirect Cardiology
      Optical Frequency Domain Imaging Versus Intravascular Ultrasound in Percutaneous Coronary Intervention (OPINION Trial) : Results From the OPINION Imaging Study
      Objectives We sought to clarify how intravascular ultrasound (IVUS) and optical coherence tomography affect percutaneous coronary intervention (PCI) with current-generation drug-eluting stents in a pre-specified substudy of the OPINION (OPtical frequency domain imaging versus INtravascular ultrasound in percutaneous coronary interventiON) trial, a multicenter, prospective, randomized, noninferiority trial comparing optical frequency domain imaging (OFDI)-guided PCI with IVUS-guided PCI. Background The impact of these 2 imaging modalities in guiding PCI remains ...
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      Mentions: Wakayama Medical University Takashi Kubo Junya Shite

    15. Coronary risk factors associated with OCT macrophage images and their response after CoCr everolimus-eluting stent implantation in patients with stable coronary artery disease

      Explore atherosclerosis-journal.com Cardiology
      Coronary risk factors associated with OCT macrophage images and their response after CoCr everolimus-eluting stent implantation in patients with stable coronary artery disease
      Background and aims The aim of this study was to evaluate the accumulation of optical coherence tomography (OCT)-macrophages and OCT findings after CoCr everolimus-eluting stent placement, in addition to coronary risk factors. Methods A total of 89 lesions in 89 patients were registered in the 1- and 3-month cohort of the multi-centre study. Lesion characteristics and post-procedure OCT images were evaluated immediately and 1 and 3 months after stenting ...
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      Mentions: Toshiro Shinke Kobe University Graduate School of Medicine Hiromasa Otake

    16. Optical frequency domain imaging vs. intravascular ultrasound in percutaneous coronary intervention (OPINION trial): one-year angiographic and clinical results

      Explore Journals Cardiology
      Optical frequency domain imaging vs. intravascular ultrasound in percutaneous coronary intervention (OPINION trial): one-year angiographic and clinical results
      Aims Optical frequency domain imaging (OFDI) is a recently developed, light-based, high-resolution intravascular imaging technique. Intravascular ultrasound (IVUS) is a widely used, conventional imaging technique for guiding percutaneous coronary intervention (PCI). We aimed to demonstrate the non-inferiority of OFDI-guided PCI compared with IVUS-guided PCI in terms of clinical outcomes. Methods and results We did a prospective, multicentre, randomized (ratio 1:1), active-controlled, non-inferiority study to compare head-to-head OFDI vs. IVUS ...
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      Mentions: Terumo Corporation Wakayama Medical University European Society of Cardiology
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  4. About Hiromasa Otake

    Hiromasa Otake

    Hiromasa Otake, MD, is a cardiologist at the Graduate School of Medicine, Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine at Kobe University in Japan and with the Center for Cardiovascular Technology, Division of Cardiovascular Medicine, Stanford University.

     

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