1. Articles from Akihiro Hayashida

    1-5 of 5
    1. Calcified plaque ablated by rotational atherectomy visualised by optical coherence tomography

      Calcified plaque ablated by rotational atherectomy visualised by optical coherence tomography

      This paper also includes accompanying supplementary data published online at: http://www.pcronline.com/eurointervention/86th_issue/62 Calcification is visualised by optical coherence tomography (OCT) as a well-delineated, signal-poor region with sharp borders. A 63-year-old female patient with stable angina underwent percutaneous coronary intervention. OCT (C7 Dragonfly™, ILUMIEN™ OCT system; St. Jude Medical, St. Paul, MN, USA) showed lumen narrowing with heavily calcified plaque (Figure 1A) . Rotational atherectomy (RA) was performed using a 2 mm burr (Rotablator™ Rotational Atherectomy System; Boston Scientific, Marlborough, MA, USA). After RA, OCT clearly visualised the calcified segment ablated by the 2 mm burr as

      Read Full Article
    2. A unique feature of thin flat thrombus visualised by optical coherence tomography

      A unique feature of thin flat thrombus visualised by optical coherence tomography

      Optical coherence tomography (OCT) has recently been developed as a high-resolution intravascular imaging modality, detecting small abnormal structures in the coronary lumen that could not be visualised by intravascular ultrasound (IVUS). A 77-year-old man died with acute myelogenous leukemia. After he died, the coronary artery was imaged by OCT (ImageWire; LightLab Imaging, Westford, MA, USA) and IVUS (Atlantis SR Pro, 40 MHz; Boston Scientific, Natick, MA, USA). OCT clearly demonstrated a thin flat structure in the coronary lumen ( Figure 1A , Moving image 1 ) but not in the IVUS image. This unique structural feature was demonstrated in corresponding histological images ( Figure ...

      Read Full Article
    3. Plaque Characteristics of Thin-Cap Fibroatheroma Evaluated by OCT and IVUS

      Plaque Characteristics of Thin-Cap Fibroatheroma Evaluated by OCT and IVUS
      Objectives The purpose of this study was to assess plaque characteristics of optical coherence tomography (OCT)-derived thin-cap fibroatheroma (TCFA) by integrated backscatter intravascular ultrasound (IB-IVUS). Background Radiofrequency signal-derived IVUS tissue characterization technology has become clinically available and provided objective and quantitative plaque characteristics of the coronary vessel wall. Integrated backscatter IVUS is one of the tissue characterization methods that can possibly provide quantitative plaque characteristics of the OCT-derived TCFA. Methods Eighty-one coronary lesions with plaque burden >40% were selected and analyzed with both IB-IVUS and OCT. The OCT-derived TCFA was defined as a presence of thin fibrous cap (<65 ...
      Read Full Article
    4. Relationship Between Arterial and Fibrous Cap Remodeling: A Serial Three-Vessel Intravascular Ultrasound and Optical Coherence Tomography Study

      Relationship Between Arterial and Fibrous Cap Remodeling: A Serial Three-Vessel Intravascular Ultrasound and Optical Coherence Tomography Study
      Background—Positive arterial remodeling and thin fibrous cap are characteristics of rupture-prone or vulnerable plaque. The natural course of the fibrous cap thickness and the relationship between serial arterial remodeling and changes in fibrous cap thickness are unknown. Therefore, the purpose of this study was to evaluate the relationship between changes in fibrous cap thickness and arterial remodeling by using optical coherence tomography (OCT) and intravascular ultrasound (IVUS) during 6-month follow-up. Methods and Results—Both IVUS and OCT examinations were performed on 108 vessels from 36 patients with ischemic heart disease who underwent percutaneous coronary intervention. Fifty-eight fibroatheromas were selected ...
      Read Full Article
    1-5 of 5
  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. Topics in the News

    1. (5 articles) Kawasaki Medical School
    2. (5 articles) Teruyoshi Kume
    3. (5 articles) Yoji Neishi
    4. (5 articles) Kiyoshi Yoshida
    5. (5 articles) Takahiro Kawamoto
    6. (5 articles) Hiroyuki Okura
    7. (3 articles) Ryotaro Yamada
    8. (3 articles) Abbot
    9. (2 articles) Boston Scientific
    10. (1 articles) Stanford University
  3. Popular Articles

  4. Picture Gallery

    Relationship Between Arterial and Fibrous Cap Remodeling: A Serial Three-Vessel Intravascular Ultrasound and Optical Coherence Tomography Study Assessment of the coronary calcification by optical coherence tomography Plaque Characteristics of Thin-Cap Fibroatheroma Evaluated by OCT and IVUS A unique feature of thin flat thrombus visualised by optical coherence tomography Calcified plaque ablated by rotational atherectomy visualised by optical coherence tomography Customized Slab-Segmentation Method for Projection-Artifact Elimination in Best Vitelliform Macular Dystrophy: A Swept-Source Optical Coherence Tomography Angiography Study Corneal Epithelial Thickness Profile in Healthy Portuguese Children by High-Definition Optical Coherence Tomography Prediction model for best focus, power, and spherical aberration of the cornea: Raytracing on a large dataset of OCT data Classification of pachychoroid on optical coherence tomography using deep learning Noninvasive Evaluation of HepaRG Aggregates during Drug‐Induced Intrahepatic Cholestasis Using Optical Coherence Tomography Online measurement of floc size, viscosity, and consistency of cellulose microfibril suspensions with optical coherence tomography A Joint Model for Macular Edema Analysis in Optical Coherence Tomography Images Based on Image Enhancement and Segmentation