1. Korea University

    0 Comments Leave a Comment

    1-15 of 67 1 2 3 4 5 »
    1. Mentioned In 67 Articles

    2. Inter-relationship between retinal and choroidal vasculatures using optical coherence tomography angiography in normal eyes

      Inter-relationship between retinal and choroidal vasculatures using optical coherence tomography angiography in normal eyes
      Purpose: To quantify vascular and structural macular variables in healthy eyes and to investigate correlations between these variables and age using optical coherence tomography angiography. Materials and methods: A total of 261 eyes of 261 subjects with normal fundus were included. Central macular thickness, ganglion cell layer to inner plexiform layer thickness, outer retina layer thickness, subfoveal choroidal thickness, and choroidal vascularity index were measured using optical coherence tomography. Foveal ...
      Read Full Article
      Mentions: Korea University
    3. Heterogeneous Computation on Mobile Processor for Real-time Signal Processing and Visualization of Optical Coherence Tomography Images

      Heterogeneous Computation on Mobile Processor for Real-time Signal Processing and Visualization of Optical Coherence Tomography Images
      We have developed a high-performance signal-processing and image-rendering heterogeneous computation system for optical coherence tomography (OCT) on mobile processor. In this paper, we reveal it by demonstrating real-time OCT image processing using a Snapdragon 800 mobile processor, with the introduction of a heterogeneous image visualization architecture (HIVA) to accelerate the signal-processing and image-visualization procedures. HIVA has been designed to maximize the computational performances of a mobile processor by using a ...
      Read Full Article
      Mentions: Korea University
    4. Comprehensive intravascular imaging of atherosclerotic plaque in vivo using optical coherence tomography and fluorescence lifetime imaging

      Comprehensive intravascular imaging of atherosclerotic plaque in vivo using optical coherence tomography and fluorescence lifetime imaging
      Comprehensive imaging of both the structural and biochemical characteristics of atherosclerotic plaque is essential for the diagnosis and study of coronary artery disease because both a plaques morphology and its biochemical composition affect the level of risk it poses. Optical coherence tomography (OCT) and fluorescence lifetime imaging (FLIm) are promising optical imaging methods for characterizing coronary artery plaques morphologically and biochemically, respectively. In this study, we present a hybrid intravascular ...
      Read Full Article
    5. Multispectral analog-mean-delay fluorescence lifetime imaging combined with optical coherence tomography

      Multispectral analog-mean-delay fluorescence lifetime imaging combined with optical coherence tomography
      The pathophysiological progression of chronic diseases, including atherosclerosis and cancer, is closely related to compositional changes in biological tissues containing endogenous fluorophores such as collagen, elastin, and NADH, which exhibit strong autofluorescence under ultraviolet excitation. Fluorescence lifetime imaging (FLIm) provides robust detection of the compositional changes by measuring fluorescence lifetime, which is an inherent property of a fluorophore. In this paper, we present a dual-modality system combining a multispectral analog-mean-delay ...
      Read Full Article
    6. Full ocular biometry through dual-depth whole-eye optical coherence tomography

      Full ocular biometry through dual-depth whole-eye optical coherence tomography
      We propose a new method of determining the optical axis (OA), pupillary axis (PA), and visual axis (VA) of the human eye by using dual-depth whole-eye optical coherence tomography (OCT). These axes, as well as the angles between the OA and VA and between PA and VA, are important in many ophthalmologic applications, especially in refractive surgery. Whole-eye images are reconstructed based on simultaneously acquired images of the anterior segment ...
      Read Full Article
      Mentions: Korea University
    7. Choriocapillaris layer imaging with swept-source optical coherence tomography angiography in lamellar and full-thickness macular hole

      Choriocapillaris layer imaging with swept-source optical coherence tomography angiography in lamellar and full-thickness macular hole
      Purpose To present characteristics of choriocapillaris layer imaging with swept-source optical coherence tomography angiography (SS-OCTA) in eyes with macular hole (MH). Methods Patients with MH were included. Vascular density of choriocapillaris (VDC) and central flow void areas were obtained using SS-OCTA. Data were compared with age- and gender-matched normal controls. Results Fifty-one patients with MH and 51 controls were included. Among the 51 patients with MH, 19 had lamellar MH ...
      Read Full Article
      Mentions: Korea University
    8. Characteristics of retinal vessels in surgically closed macular hole: an optical coherence tomography angiography study

      Characteristics of retinal vessels in surgically closed macular hole: an optical coherence tomography angiography study
      Purpose The purpose of our study was to investigate characteristics of retinal vessels in eyes with surgically closed macular holes (MH). Methods We included patients who underwent surgery for idiopathic MH and a follow-up examination using optical coherence tomography angiography (OCTA). The area of the foveal avascular zone (FAZ) and retinal vascular densities of the superficial capillary plexus (SCP) and deep capillary plexus (DCP) were calculated on the postoperative OCTA ...
      Read Full Article
      Mentions: Korea University
    9. Image-Guided Laparoscopic Surgical Tool (IGLaST) Based on the Optical Frequency Domain Imaging (OFDI) to Prevent Bleeding

      Image-Guided Laparoscopic Surgical Tool (IGLaST) Based on the Optical Frequency Domain Imaging (OFDI) to Prevent Bleeding
      We present an image-guided laparoscopic surgical tool (IGLaST) to prevent bleeding. By applying optical frequency domain imaging (OFDI) to a specially designed laparoscopic surgical tool, the inside of fatty tissue can be observed before a resection, and the presence and size of blood vessels can be recognized. The optical sensing module on the IGLaST head has a diameter of less than 390 m and is moved back and forth by ...
      Read Full Article
      Mentions: Korea University
    10. Characteristics of Earlier Versus Delayed Presentation of Very Late Drug‐Eluting Stent Thrombosis: An Optical Coherence Tomographic Study

      Characteristics of Earlier Versus Delayed Presentation of Very Late Drug‐Eluting Stent Thrombosis: An Optical Coherence Tomographic Study
      Background The pathophysiology underlying very late drug‐eluting stent ( DES ) thrombosis is not sufficiently understood. Using optical coherence tomography, we investigated characteristics of very late stent thrombosis ( VLST ) according to different onset times. Methods and Results A total of 98 patients from 10 South Korean hospitals who underwent optical coherence tomography for evaluation of very late DES thrombosis were retrospectively included in analyses. VLST occurred at a median of 55 ...
      Read Full Article
    11. Effect of Lateral Decubitus Body Posture on Anterior Chamber Angle in Healthy Subjects: An Anterior Segment Optical Coherence Tomography Study

      Effect of Lateral Decubitus Body Posture on Anterior Chamber Angle in Healthy Subjects: An Anterior Segment Optical Coherence Tomography Study
      Purpose: To investigate the effect of the lateral decubitus (LD) position on the anterior chamber (AC) angle in healthy subjects. Materials and Methods: Twenty-three healthy young subjects were included in this prospective observational study. We measured AC angle parameters in the sitting and the left LD positions using anterior segment optical coherence tomography (Visante OCT): trabecular-iris angle (TIA), angle opening distance (AOD500), trabecular-iris space area (TISA500), anterior chamber width, lens ...
      Read Full Article
      Mentions: Korea University
    12. Dual focusing optical coherence imaging system

      Dual focusing optical coherence imaging system
      The present invention relates to a dual focusing optical coherence imaging system. The dual focusing optical coherence imaging system includes: a light source unit for generating broadband light; a main optical distributor for distributing the light generated from the light source to allow the light to be propagated; an interference unit including first and second interference parts for forming interference signals with respect to different focused areas of an object ...
      Read Full Article
      Mentions: Korea University
    13. High-resolution, dual-depth spectral-domain optical coherence tomography with interlaced detection for whole-eye imaging

      High-resolution, dual-depth spectral-domain optical coherence tomography with interlaced detection for whole-eye imaging
      ... Bldg. 47, Gyeongdae-ro 17 gil, Buk-gu, Daegu 702-832, South Korea 3Department of Biomicrosystem Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 136-713, South Korea 4School of Electronics Engineering, Kyu...
      Read Full Article
    14. Characterization of lipid-rich plaques using spectroscopic optical coherence tomography

      Characterization of lipid-rich plaques using spectroscopic optical coherence tomography
      Intravascular optical coherence tomography (IV-OCT) is a high-resolution imaging method used to visualize the internal structures of walls of coronary arteries in vivo . However, accurate characterization of atherosclerotic plaques with gray-scale IV-OCT images is often limited by various intrinsic artifacts. In this study, we present an algorithm for characterizing lipid-rich plaques with a spectroscopic OCT technique based on a Gaussian center of mass (GCOM) metric. The GCOM metric, which reflects ...
      Read Full Article
    15. Automated detection of vessel lumen and stent struts in intravascular optical coherence tomography to evaluate stent apposition and neointimal coverage

      Automated detection of vessel lumen and stent struts in intravascular optical coherence tomography to evaluate stent apposition and neointimal coverage
      Purpose: Intravascular optical coherence tomography (IV-OCT) is a high-resolution imaging method used to visualize the microstructure of arterial walls in vivo . IV-OCT enables the clinician to clearly observe and accurately measure stent apposition and neointimal coverage of coronary stents, which are associated with side effects such as in-stent thrombosis. In this study, the authors present an algorithm for quantifying stent apposition and neointimal coverage by automatically detecting lumen contours and ...
      Read Full Article
    16. 1-15 of 67 1 2 3 4 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. About Korea University

    Korea University

    Korea University is a private research university located primarily in Seoul, South Korea, and a member of the SKY (universities). It was founded by Lee Yong-ik in the present-day town of Anam in 1905. The university is the oldest institution of higher education in South Korea. Korea University is a comprehensive research institution consisting of 81 academic departments in 15 colleges and 75 research institutes.  Korea University College of Medicine.