1. Kenichi Fujii

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    1. Mentioned In 22 Articles

    2. Histopathological validation of optical coherence tomography findings of the coronary arteries

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      Histopathological validation of optical coherence tomography findings of the coronary arteries
      Optical coherence tomography (OCT), a catheter-based imaging modality for the visualization of coronary arteries, is widely used during percutaneous coronary intervention to improve the understanding of the anatomy of coronary artery stenosis and to elucidate the mechanisms of atherosclerosis. In this review, we provide a short description of the histopathological validations of OCT for visualizing atherosclerotic plaques and vascular healing response after drug-eluting stent (DES) implantation. Because OCT measures the ...
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      Mentions: Kenichi Fujii

    3. ORGANIZATION OF THROMBUS CONTRIBUTES TO RAPID PROGRESSION OF CORONARY ARTERY DISEASE: A SERIAL CORONARY ANGIOGRAMS AND OPTICAL COHERENCE TOMOGRAPHY STUDY

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      ORGANIZATION OF THROMBUS CONTRIBUTES TO RAPID PROGRESSION OF CORONARY ARTERY DISEASE: A SERIAL CORONARY ANGIOGRAMS AND OPTICAL COHERENCE TOMOGRAPHY STUDY
      Background The process of progression of coronary artery disease (CAD) is generally classified as either rapid progression or continuous slight progression in daily clinical practice. However, the precise mechanism of rapid progression in CAD is unknown. Methods This study consists of 62 lesions with clinically significant progression of CAD (10%/year) in which serial coronary angiogram and optical coherence tomography (OCT) were performed at intervals of approximately 1 year. From ...
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      Mentions: Kenichi Fujii

    4. Comparing the vascular response in implantation of self-expanding, bare metal nitinol stents or paclitaxel-eluting nitinol stents in superficial femoral artery lesions: a serial optical frequency domain imaging study

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      Comparing the vascular response in implantation of self-expanding, bare metal nitinol stents or paclitaxel-eluting nitinol stents in superficial femoral artery lesions: a serial optical frequency domain imaging study
      Aims: This study sought to investigate differences in vascular response between self-expanding bare metal nitinol stents (BMS) and paclitaxel-eluting nitinol stents (PES), in superficial femoral artery (SFA) disease, using optical frequency domain imaging (OFDI). Methods and results: Six months after stent implantation, follow-up quantitative vascular angiography (QVA) and OFDI assessment were scheduled to evaluate vascular response. Volume index (VI) was defined as volume divided by stent length. The primary endpoint ...
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      Mentions: Stanford University Kenichi Fujii Peter J. Fitzgerald

    5. 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

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      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 ...
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      Mentions: Kenichi Fujii Ken-ichi Hirata Toshiro Shinke

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

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      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 ...
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      Mentions: Kenichi Fujii Ken-ichi Hirata Toshiro Shinke

    7. Tissue Characterization of In-Stent Neointima Using Optical Coherence Tomography in the Late Phase After Bare-Metal Stent Implantation – An Ex Vivo Validation Study –

      Explore jstage.jst.go.jp Cardiology
      Tissue Characterization of In-Stent Neointima Using Optical Coherence Tomography in the Late Phase After Bare-Metal Stent Implantation – An Ex Vivo Validation Study –
      Background: We performed an ex vivo study to investigate optical coherence tomography (OCT) imaging for differentiating several types of neointimal tissue during the later phases after bare-metal stent (BMS) implantation as compared with histologic results. Methods and Results: OCT imaging was performed in 6 autopsy hearts for 10 BMS with implant duration 4 years. OCT qualitative neointimal tissue characterization was based on tissue structure and classified as homogeneous pattern, heterogeneous ...
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      Mentions: Kenichi Fujii St. Jude Medical

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

      Explore Canadian Journal of Cardiology Cardiology
      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 ...
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      Mentions: Kenichi Fujii Ken-ichi Hirata Toshiro Shinke

    9. Restenosis After Drug-Eluting Stent Implantation in a Patient With Polycythemia Vera Optical Coherence Tomography and Pathological Findings

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      Restenosis After Drug-Eluting Stent Implantation in a Patient With Polycythemia Vera Optical Coherence Tomography and Pathological Findings
      An 83-year-old woman was referred to our hospital due to diverticular bleeding of the colon. She had a history of everolimus-eluting stent implantation in the left anterior descending artery (31 months before) and the right coronary artery (20 and 31 months before) because of stable angina. She was prescribed aspirin 100 mg/day and clopidogrel 75 mg/day, followed by single antiplatelet therapy by aspirin during the last 8 months ...
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      Mentions: Kenichi Fujii St. Jude Medical

    10. Accuracy of OCT, Grayscale IVUS, and Their Combination for the Diagnosis of Coronary TCFA An Ex Vivo Validation Study

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      Accuracy of OCT, Grayscale IVUS, and Their Combination for the Diagnosis of Coronary TCFA An Ex Vivo Validation Study
      Objectives This study sought to assess the accuracy of optical coherence tomography (OCT), gray-scale intravascular ultrasound (IVUS), and their combination for detecting thin-cap fibroatheromas (TCFA). Background The extent to which the imaging characteristics of OCT and IVUS correlate with histologically defined TCFA is unknown. Methods IVUS and OCT examinations identified focal plaques in 165 coronary arteries from 60 autopsy hearts. A total of 685 pairs of images of OCT and ...
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      Mentions: Kenichi Fujii Mitsumasa Ohyanagi

    11. Different Findings in a Calcified Nodule Between Histology and Intravascular Imaging Such as Intravascular Ultrasound, Optical Coherence Tomography, and Coronary Angioscopy

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      Different Findings in a Calcified Nodule Between Histology and Intravascular Imaging Such as Intravascular Ultrasound, Optical Coherence Tomography, and Coronary Angioscopy
      An 89-year-old woman who suffered a stroke and congestive heart failure was admitted to our hospital. She died of heart failure and autopsy was performed. Coronary arteries were removed from the heart and used for ex vivo imaging of intravascular ultrasound ([IVUS]; Atlantis, Boston Scientific Corporation, Natick, Massachusetts), optical coherence tomography (LightLab imaging Inc., Westford, Massachusetts), and coronary angioscopy (FiberTech, Tokyo, Japan) within 6 h after death before fixation with ...
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      Mentions: Boston Scientific Kenichi Fujii St. Jude Medical

    12. Can Optical Coherence Tomography Findings Be Used as Surrogates for Vessel Healing After Drug-Eluting Stent Implantation?

      Explore jstage.jst.go.jp Cardiology
      Can Optical Coherence Tomography Findings Be Used as Surrogates for Vessel Healing After Drug-Eluting Stent Implantation?
      Drug-eluting stents (DES) inhibit neointimal proliferation and reduce the rates of subsequent target lesion revascularization as compared with bare-metal stents in randomized clinical trials.1,2 However, too much inhibition of neointimal hyperplasia might cause delayed vascular healing with incomplete endothelialization, which has been associated with an increase risk of stent thrombosis.3,4 Therefore, accurate assessment of the neointimal coverage in DES may be critical in prognosticating their safety ...
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      Mentions: Kenichi Fujii

    15. Multiple complex coronary atherosclerosis in diabetic patients with acute myocardial infarction: a three-vessel optical coherence tomography study

      Explore eurointervention.org Cardiology
      Multiple complex coronary atherosclerosis in diabetic patients with acute myocardial infarction: a three-vessel optical coherence tomography study
      Aims: The main cause of acute myocardial infarction (AMI) is the disruption of a thin-cap fibroatheroma (TCFA) and subsequent thrombosis. Mortality increases in diabetic patients due to cardiovascular events; there may be differences in the vulnerable plaques between diabetic and non-diabetic patients. We used optical coherence tomography (OCT) to assess the incidence of vulnerable plaques in diabetic patients with AMI. Methods and results: OCT was performed in all three major ...
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      Mentions: Motomaru Masutani Kenichi Fujii Mitsumasa Ohyanagi

    16. Endothelium-dependent coronary vasomotor response and neointimal coverage of zotarolimus-eluting stents 3 months after implantation

      Explore Heart Cardiology
      Endothelium-dependent coronary vasomotor response and neointimal coverage of zotarolimus-eluting stents 3 months after implantation
      Background Zotarolimus-eluting stents (ZES) have a higher rate of neointimal coverage than the first-generation drug-eluting stents on optical coherence tomography (OCT). Objective To determine whether neointimal coverage of stent struts detected by OCT can be used as a surrogate for endothelial function after ZES implantation. Design Cross-sectional observational study. Setting Three months after ZES implantation. Patients and methods OCT was performed in 20 patients with a ZES at 3 months ...
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      Mentions: Motomaru Masutani Kenichi Fujii Mitsumasa Ohyanagi
    17. 1-15 of 22 1 2 »
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  4. About Kenichi Fujii

    Kenichi Fujii, MD, is at the Division of Coronary Heart Disease in the Department of Internal Medicine at the Hyogo College of Medicine in Japan.

  5. Related Topics

    1. Frequency and Predictor of Coronary Thin-Cap Fibroatheroma in Patients With Acute Myocardial Infarction and Stable Angina Pectoris: A 3-Vessel Optical Coherence Tomography Study
      8 articles also mentioned Mitsumasa Ohyanagi
    2. Contribution of organized thrombus to in-stent restenosis after sirolimus-eluting stent implantation: optical coherence tomography findings
      7 articles also mentioned Motomaru Masutani
    3. Differences in Vessel Healing between Sirolimus- and Everolimus-eluting Stent Implantation for Bifurcation Lesions: The J-REVERSE OCT Sub-study
      3 articles also mentioned Yoshihisa Kinoshita