1. Tokyo Medical & Dental University

    0 Comments Leave a Comment

    1-15 of 117 1 2 3 4 5 6 7 8 »
    1. Mentioned In 117 Articles

    2. Three-dimensional assessment of proximal contact enamel using optical coherence tomography

      Three-dimensional assessment of proximal contact enamel using optical coherence tomography
      Objective The purpose of this study was to detect and investigate the association of enamel microcracks with demineralization at proximal contact areas of premolars, using 3D swept-source optical coherence tomography (SS-OCT). Methods Extracted maxillary and mandibular premolars (n = 50 each), without any visible tooth cracks, were examined for demineralization of interproximal contact areas, using the International Caries Detection and Assessment System (ICDAS). SS-OCT was used to evaluate demineralization and detect ...
      Read Full Article
    3. Optical Coherence Tomography-based Diagnostic Criteria for Different Stages of Myopic Maculopathy

      Optical Coherence Tomography-based Diagnostic Criteria for Different Stages of Myopic Maculopathy
      Purpose To analyze the choroidal thickness (CT) of each type of myopic maculopathy, and to establish an OCT-based classification of myopic maculopathy. Design Retrospective, hospital-based, cross-sectional study. Participants Highly myopic (HM) eyes that were examined by swept-source OCT. Methods The CT was measured at the subfovea and at 3 mm nasal, temporal, superior, and inferior to the fovea. Myopic maculopathy was classified as tessellation, diffuse atrophy, patchy atrophy, and macular ...
      Read Full Article
    4. Imaging in myopia: potential biomarkers, current challenges and future developments

      Imaging in myopia: potential biomarkers, current challenges and future developments
      Myopia is rapidly increasing in Asia and around the world, while it is recognised that complications from high myopia may cause significant visual impairment. Thus, imaging the myopic eye is important for the diagnosis of sight-threatening complications, monitoring of disease progression and evaluation of treatments. For example, recent advances in high-resolution imaging using optical coherence tomography may delineate early myopic macula pathology, optical coherence tomography angiography may aid early choroidal ...
      Read Full Article
    5. Optical Coherence Tomography–Defined Plaque Vulnerability in Relation to Functional Stenosis Severity and Microvascular Dysfunction

      Optical Coherence Tomography–Defined Plaque Vulnerability in Relation to Functional Stenosis Severity and Microvascular Dysfunction
      Objectives This study sought to investigate the relationship of unstable plaque features with physiological lesion severity and microvascular dysfunction . Background The functional severity of epicardial lesions and microvascular dysfunction are both related to adverse clinical outcomes. Methods We investigated 382 de novo intermediate and severe coronary lesions in 340 patients who underwent optical coherence tomography , fractional flow reserve (FFR), and index of microcirculatory resistance (IMR) examinations. Lesions were divided into ...
      Read Full Article
    6. A non‐invasive imaging and measurement using optical coherence tomography angiography for the assessment of gingiva: An in vivo study

      A non‐invasive imaging and measurement using optical coherence tomography angiography for the assessment of gingiva: An in vivo study
      Gingiva is the soft tissue that surrounds and protects the teeth. Healthy gingiva provides an effective barrier to periodontal insults to deeper tissue, thus is an important indicator to a patients periodontal health. Current methods in assessing gingival tissue health, including visual observation and physical examination with probing on the gingiva, are qualitative and subjective. They may become cumbersome when more complex cases are involved, such as variations in gingival ...
      Read Full Article
    7. Assessment of root caries under wet and dry conditions using swept-source optical coherence tomography (SS-OCT)

      Assessment of root caries under wet and dry conditions using swept-source optical coherence tomography (SS-OCT)
      The purpose of this study was to compare optical properties of root caries under two observing conditions using swept-source optical coherence tomography (SS-OCT). In vitro and natural root caries were observed by SS-OCT under wet and dry conditions, followed by confocal laser scanning microscope (CLSM) and transverse microradiography (TMR). Signal intensity (SI), distance between SI peaks (SI-distance) and optical lesion depth were obtained from OCT. Lesion depth was measured from ...
      Read Full Article
    8. In vitro and clinical evaluation of optical coherence tomography for the detection of subgingival calculus and root cementum

      In vitro and clinical evaluation of optical coherence tomography for the detection of subgingival calculus and root cementum
      This study evaluated the effectiveness of swept-source optical coherence tomography (ss-OCT) for detecting calculus and root cementum during periodontal therapy. Optical coherence tomography (OCT) images were taken before and after removal of subgingival calculus from extracted teeth and compared with non-decalcified histological sections. Porcine gingival sheets of various thicknesses were applied to the root surfaces of extracted teeth with calculus and OCT images were taken. OCT images were also taken ...
      Read Full Article
    9. Nonculprit Plaque Characteristics in Patients With Acute Coronary Syndrome Caused by Plaque Erosion vs Plaque Rupture A 3-Vessel Optical Coherence Tomography Study

      Nonculprit Plaque Characteristics in Patients With Acute Coronary Syndrome Caused by Plaque Erosion vs Plaque Rupture A 3-Vessel Optical Coherence Tomography Study
      Importance Patients with culprit plaque rupture are known to have pancoronary plaque vulnerability. However, the characteristics of nonculprit plaques in patients with acute coronary syndromes caused by plaque erosion are unknown. Objective To investigate the nonculprit plaque phenotype in patients with acute coronary syndrome according to culprit plaque pathology (erosion vs rupture) by 3-vessel optical coherence tomography imaging. Design, Setting, and Participants In this observational cohort study, between August 2010 ...
      Read Full Article
    10. Swept-source optical coherence tomographic findings in eyes with metastatic choroidal tumor

      Swept-source optical coherence tomographic findings in eyes with metastatic choroidal tumor
      Purpose To report the swept-source optical coherence tomographic (OCT) findings in two eyes with choroidal metastases. Observations Two patients with choroidal metastasis were studied. The metastasis was from a breast cancer in Case 1 and from a lung cancer in Case 2. In Case 1, swept-source OCT showed a highly reflective solid tumor with low optical reflective tissues that had replaced the choroidal tissue. Swept-source OCT was able to image ...
      Read Full Article
    11. Effect of drug-coated balloon on stent restenosis, neointimal proliferation, and coronary dissection: an optical coherence tomography analysis

      Effect of drug-coated balloon on stent restenosis, neointimal proliferation, and coronary dissection: an optical coherence tomography analysis
      Aim: The aim of this study was to assess the acute and mid-term effects of drug-coated balloon (DCB) in terms of the healing process of non-flow-limiting dissections and changes in the neointimal area after DCB treatment using frequency domain optical coherence tomography (FD-OCT). Patients and methods: Thirty-six consecutive patients with in-stent restenosis pretreated with a scoring balloon were evaluated (19 and 17 patients with and without a DCB, respectively). FD-OCT ...
      Read Full Article
    12. Posterior Staphylomas in Pathologic Myopia Imaged by Widefield Optical Coherence Tomography

      Posterior Staphylomas in Pathologic Myopia Imaged by Widefield Optical Coherence Tomography
      Purpose : To examine posterior staphylomas by widefield optical coherence tomography (WF-OCT) and three-dimensional magnetic resonance imaging (3D-MRI). Methods : Highly myopic patients (myopic refractive error 8.0 diopters or axial length 26.5 mm) who had previously undergone orbital 3D-MRI were examined by WF-OCT. Results : The study included 100 eyes of 57 patients with a mean age of 67.9 10.7 years (range, 4485 years) and mean axial length of ...
      Read Full Article
    13. Optical Coherence Tomographic Imaging of Posterior Episclera and Tenon's Capsule

      Optical Coherence Tomographic Imaging of Posterior Episclera and Tenon's Capsule
      Purpose : To investigate structural features of the posterior episclera and Tenon's capsule in patients with high myopia. Methods : This hospital-based observational study included highly myopic eyes (myopic refractive error 8 diopters or axial length 26.5 mm) in which the posterior sclera in its full thickness could be visualized on swept-source optical coherence tomography (OCT) images in all 12 radial scans centered on the fovea. We assessed the posterior ...
      Read Full Article
    14. Resolution characteristics of optical coherence tomography for dental use

      Resolution characteristics of optical coherence tomography for dental use
      OBJECTIVES: The purpose of this study was to clarify resolution characteristics of optical coherence tomography (OCT) for dental use. METHODS: Two types of swept-source OCT machines (SS-OCTs) were employed in this study. To clarify their resolution characteristics, we newly developed a glass chart device with a ladder pattern of wavelengths, which ranged from (4 x 2) m to (1024 x 2) m, as well as a star-target pattern, a grid ...
      Read Full Article
    15. Three-Dimensional Analysis of Enamel Crack Behavior Using Optical Coherence Tomography

      Three-Dimensional Analysis of Enamel Crack Behavior Using Optical Coherence Tomography
      The aim of this study was to nondestructively analyze enamel crack behavior on different areas of teeth using 3D swept source-optical coherence tomography (SS-OCT). Ten freshly extracted human teeth of each type on each arch ( n = 80 teeth) were inspected for enamel crack patterns on functional, contact and nonfunctional, or noncontact areas using 3D SS-OCT. The predominant crack pattern for each location on each specimen was noted and analyzed. The ...
      Read Full Article
    16. 1-15 of 117 1 2 3 4 5 6 7 8 »
  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 Tokyo Medical & Dental University

    Tokyo Medical & Dental University

    Tokyo Medical and Dental University is unique among medical and dental universities in Japan in that we have four divisions dedicated to graduate education and research: Medical and Dental Sciences, Health Care Sciences, the Biomedical Sciences Education Division, and the Biomedical Sciences Research Division. TMDU comprises four faculties (Medicine, Dentistry, Health Care Sciences and Oral Health Care Sciences), an undergraduate College of Liberal Arts and Sciences, two research institutes (the Institute of Biomaterials and Bioengineering and the Medical Research Institute), a university hospital attached to the Faculty of Medicine, a university hospital attached to the Faculty of Dentistry, and a dental technologist school.