1. Hiroyuki Kawamori

    0 Comments Leave a Comment

    1-13 of 13
    1. Mentioned In 13 Articles

    2. Optical Coherence Tomography and Histopathology Assessment After Implantation of First- and Second-Generation Drug-Eluting Stents in a Porcine Coronary Model

      Optical Coherence Tomography and Histopathology Assessment After Implantation of First- and Second-Generation Drug-Eluting Stents in a Porcine Coronary Model
      Background: This study directly compared optical coherence tomography (OCT) and histopathology for the assessment of vascular response to first- and second-generation drug-eluting stents. Methods and Results: Sirolimus-, everolimus-, and biolimus-eluting stents (SES, EES, and BES, respectively) were randomly implanted into the coronary arteries of 12 porcine. OCT was conducted after implantation: at 1, 3, and 6 months; histopathology was assessed at 3 and 6 months. At 1-month OCT, EES had ...
      Read Full Article
    3. Natural consequence of post-intervention stent malapposition, thrombus, tissue prolapse, and dissection assessed by optical coherence tomography at mid-term follow-up

      Natural consequence of post-intervention stent malapposition, thrombus, tissue prolapse, and dissection assessed by optical coherence tomography at mid-term follow-up
      ..., thrombus, tissue prolapse, and dissection assessed by optical coherence tomography at mid-term follow-up 1. Hiroyuki Kawamori, 2. Junya Shite*, 3. Toshiro Shinke, 4. Hiromasa Otake, 5. Daisuke Matsumoto, 6. Masayuki Na...
      Read Full Article
    4. Qualitative and Quantitative Assessment of Stent Restenosis by Optical Coherence Tomography

      Qualitative and Quantitative Assessment of Stent Restenosis by Optical Coherence Tomography
      We hypothesized that the tissue components of in-stent restenosis (ISR) might differ between drug-eluting stents (DES) and bare-metal stents (BMS) and that these differences could be distinguished by qualitative and quantitative optical coherence tomography (OCT) analyses. Methods and Results: One-hundred and twenty-two initial ISR lesions (sirolimus-eluting stents: n=28; paclitaxel-eluting stents: n=51; BMS: n=43) were evaluated with OCT. Based on their OCT appearance, the lesions were classified as ...
      Read Full Article
    5. Optical coherence evaluation for everolimus-eluting stents at 8 months after implantation

      Optical coherence evaluation for everolimus-eluting stents at 8 months after implantation
      Objective The aim of this study was to evaluate detailed vessel response after everolimus-eluting stents (EES) implantation in human de novo coronary lesions by optical coherence tomography (OCT). Design, setting and patients Between November 2008 and October 2009, 25 patients (14 men, 65.5±8.6 years) with de novo native coronary artery lesions were implanted with 30 EES, and OCT was performed at 8 months post-implantation. Main Outcome Measures ...
      Read Full Article
    6. The Ability of Optical Coherence Tomography to Monitor Percutaneous Coronary Intervention: Detailed Comparison with Intravascular Ultrasound

      The Ability of Optical Coherence Tomography to Monitor Percutaneous Coronary Intervention: Detailed Comparison with Intravascular Ultrasound
      ...idebars_in_article: Issue Number: Volume 22, Issue 11, November 2010 Start Page: 541 End Page: 545 author(s): Hiroyuki Kawamori, MD, Junya Shite, MD, Toshiro Shinke, MD, Hiromasa Otake, MD, Takahiro Sawada, MD, Hiroki Ka...
      Read Full Article
    7. Comparison by Optical Coherence Tomography of Paclitaxel-Eluting Stents With Sirolimus-Eluting Stents Implanted in One Coronary Artery in One Procedure: 6-Month Follow-up

      Comparison by Optical Coherence Tomography of Paclitaxel-Eluting Stents With Sirolimus-Eluting Stents Implanted in One Coronary Artery in One Procedure: 6-Month Follow-up
      Differences between paclitaxel-eluting stents (PES) and sirolimus-eluting stent (SES) in neointimal proliferation under strictly matched conditions remain to be clarified by optical coherence tomography (OCT). Methods and Results: Between May and December 2007, 27 patients were implanted with a PES and a SES, randomized to either the proximal or distal site in a single coronary artery, and underwent follow-up angiography and OCT examination at 6 months. The frequency of vessel ...
      Read Full Article
    8. Factors That Influence Measurements and Accurate Evaluation of Stent Apposition by Optical Coherence Tomography

      Factors That Influence Measurements and Accurate Evaluation of Stent Apposition by Optical Coherence Tomography
      kground: Factors influencing measurements and accurate evaluation of stent apposition by optical coherence tomography (OCT) are not established. Methods and Results: Phantom models of known luminal sizes and lengths were evaluated by OCT under various conditions and measurements were compared with actual values. Stents implanted into phantom models were examined by OCT to validate the measurement point on the stent strut surface for accurate evaluation of stent apposition. Strut thickness ...
      Read Full Article
    9. Low plasma adiponectin levels are associated with presence of thin-cap fibroatheroma in men with stable coronary artery disease

      Abstract: Background: Previous studies demonstrated the inverse association of adiponectin with coronary artery disease (CAD) especially in men with acute coronary syndrome, however their association with in vivo plaque vulnerability in stable CAD, which may be reflected by the thin-cap fibroatheroma (TCFA) prevalence, remains unknown.Methods: In 50 men with stable CAD, we identified TCFA with multi-vessel examination of combined use of virtual histology intravascular ultrasound (VH-IVUS) and optical coherence ...
      Read Full Article
    10. Delayed Neointimalization on Sirolimus-Eluting Stents: 6-Month and 12-Month Follow up by Optical Coherence Tomography

      Background: Sirolimus-eluting stents (SES) have incomplete neointimal coverage at 6-month follow up as determined with optical coherence tomography (OCT). The long-term detailed changes of neointima in SES remains to be clarified. Methods and Results: Serial changes in neointimal coverage of SES from 6 months to 12 months using OCT were examined. Of 21 SES in 13 patients, OCT was used to visualize 2,321 stent struts at 6 months and ...
      Read Full Article
    11. Low Plasma Adiponectin Level and High Oxidative Stress are Associated with In Vivo Thin-Cap Fibroatheloma Prevalence in Patients with Stable Coronary Artery Disease

      Background; Few studies have investigated the association between biomarkers and in vivo plaque vulnerability in patients with stable coronary artery disease (CAD). Methods; We examined two or three vessels of 55 stable CAD patients with combined use of virtual histology intravascular ultrasound (VH-IVUS) and optical coherence tomography (OCT), and diagnosed thin-cap fibroatheroma (TCFA). The definition of TCFA was described as follow: necrotic core rich lesion (%necrotic-core>10%) without evident overlying ...
      Read Full Article
    12. Very late thrombosis of sirolimus-eluting stent due to late malapposition: Serial observations with optical coherence tomography

      A 54 years old man underwent directional coronary atherectomy in segment 7 with a partial deep-cut injury. A sirolimus-eluting stent (SES) was implanted at the restenosed post-atherectomy lesion. Six months after SES implantation, intravascular ultrasound (IVUS) examination revealed slight vessel enlargement although there were no malapposed struts. Optical coherence tomography (OCT) revealed partial stent malapposition. Ticlopidine was discontinued 3 months after SES implantation, but aspirin was continued. Twenty-nine months after ...
      Read Full Article
    13. Feasibility of combined use of intravascular ultrasound radiofrequency data analysis and optical coherence tomography for detecting thin-cap fibroatheroma

      Aims To evaluate the feasibility of the combined use of virtual histology (VH)-intravascular ultrasound (IVUS) and optical coherence tomography (OCT) for detecting in vivo thin-cap fibroatheroma (TCFA). Methods and results In 56 patients with angina, 126 plaques identified by IVUS findings were analysed using both VH-IVUS and OCT. IVUS-derived TCFA was defined as an abundant necrotic core (>10% of the cross-sectional area) in contact with the lumen (NCCL) and ...
      Read Full Article
    14. 1-13 of 13
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. About Hiroyuki Kawamori

    Hiroyuki Kawamori is from the Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine in Kobe, Japan.