1. Yonsei University

    0 Comments Leave a Comment

    1-15 of 248 1 2 3 4 ... 15 16 17 »
    1. Mentioned In 248 Articles

    2. Anterior Ocular Biometrics Using Placido-scanning-slit system, Rotating Scheimpflug Tomography, and Swept-source Optical Coherence Tomography

      Anterior Ocular Biometrics Using Placido-scanning-slit system, Rotating Scheimpflug Tomography, and Swept-source Optical Coherence Tomography
      Purpose: To compare anterior biometry measurements using placido-scanning-slit topography, rotating Scheimpflug tomography, and swept-source optical coherence tomography. Methods: A retrospective review consisted of 80 eyes of 49 participants who underwent anterior chamber depth (ACD), central corneal thickness (CCT), and keratometry examination on the same day. We used placido-scanning-slit topography (ORBscan II), rotating Scheimpflug tomography (Pentacam HR), and swept-source optical coherence tomography (CASIA ss-1000). The intraclass correlation coefficients (ICCs) and Bland-Altman ...
      Read Full Article
    3. Optical Coherence Tomography Angiography for Biomarker Indices in Diabetes (Book Chapter)

      Optical Coherence Tomography Angiography for Biomarker Indices in Diabetes (Book Chapter)
      Optical coherence tomography angiography (OCTA) visualizes the structure and flow of retinal vasculature using motion contrast. Diabetic retinopathy (DR), commonly present in one-third of the patients with diabetes, is a major microvascular complication of diabetes mellitus caused by retinal ischemia and vascular hyperpermeability. Microvasculature changes, such as foveal avascular zone enlargement and decrease in vascular density of the deep capillary plexus, have been identified in diabetic eyes without clinical retinopathy ...
      Read Full Article
    4. Optical coherence tomography in coronary atherosclerosis assessment and intervention

      Optical coherence tomography in coronary atherosclerosis assessment and intervention
      Since optical coherence tomography (OCT) was first performed in humans two decades ago, this imaging modality has been widely adopted in research on coronary atherosclerosis and adopted clinically for the optimization of percutaneous coronary intervention. In the past 10 years, substantial advances have been made in the understanding of in vivo vascular biology using OCT. Identification by OCT of culprit plaque pathology could potentially lead to a major shift in ...
      Read Full Article
    5. In vivo PS-OCT needle probe scan of human skeletal muscle

      In vivo PS-OCT needle probe scan of human skeletal muscle
      Polarization-sensitive optical coherence tomography (PS-OCT) derived birefringence values effectively identify skeletal muscle structural disruption due to muscular dystrophy and exercise-related muscle damage in animal models in ex vivo tissue. The purpose of this investigation was to determine if a PS-OCT needle probe inserted into the leg of a human subject could accurately identify various anatomical structures with implications for use as a diagnostic tool for the determination of skeletal muscle ...
      Read Full Article
    6. Successful Primary Percutaneous Coronary Intervention without Stenting: Insight from Optimal Coherence Tomography

      Successful Primary Percutaneous Coronary Intervention without Stenting: Insight from Optimal Coherence Tomography
      For patients with acute myocardial infarction, current management guidelines recommend implantation of a drug-eluting stent, dual antiplatelet therapy (including potent P2Y12 inhibitors) for at least 1 year, and maintenance of life-long antiplatelet therapy. However, a pilot study showed favorable results with antithrombotic therapy without stent implantation when plaque erosion, not definite plaque rupture, was confirmed using optical coherence tomography (OCT), despite the patients having acute myocardial infarction. Here, we present ...
      Read Full Article
    7. Requirements and limitations of imaging airway smooth muscle throughout the lung in vivo

      Requirements and limitations of imaging airway smooth muscle throughout the lung in vivo
      Clinical visualization and quantification of the amount and distribution of airway smooth muscle (ASM) in the lungs of individuals with asthma has major implications for our understanding of airway wall remodeling as well as treatments targeted at the ASM. This paper theoretically investigates the feasibility of quantifying airway wall thickness (focusing on the ASM) throughout the lung in vivo by means of bronchoscopic polarisation-sensitive optical coherence tomography (PS-OCT). Using extensive ...
      Read Full Article
    8. Characterizing right-angled vessel in macular telangiectasia type 2 with structural optical coherence tomography

      Characterizing right-angled vessel in macular telangiectasia type 2 with structural optical coherence tomography
      We investigated the structural findings on spectral-domain optical coherence tomography (SD-OCT) related to the presence of right-angled vessels (RAV) in patients with macular telangiectasia (MacTel) type 2 with severity 3 in Korea. A retrospective multicenter cross-sectional study was conducted in six tertiary hospitals in Korea; the study included 116 MacTel type 2 eyes with severity 3. The SD-OCT findings were compared between eyes with RAV on fundus photography or fluorescein ...
      Read Full Article
    9. Clinical Implications of Post-Stent Optical Coherence Tomographic Findings: Severe Malapposition and Cardiac Events

      Clinical Implications of Post-Stent Optical Coherence Tomographic Findings: Severe Malapposition and Cardiac Events
      Objectives This study sought to evaluate the impact of post-stent optical coherence tomography (OCT) findings, including severe malapposition, on long-term clinical outcomes. Background Suboptimal OCT findings following percutaneous coronary intervention (PCI) are highly prevalent; however, their clinical implications remain controversial. Methods Of the patients registered in the Yonsei OCT registry, a total of 1,290 patients with 1,348 lesions, who underwent OCT immediately post-stenting, were consecutively enrolled for this ...
      Read Full Article
    10. Association between in-stent neointimal characteristics and native coronary artery disease progression

      Association between in-stent neointimal characteristics and native coronary artery disease progression
      Background and aims The prognosis of stented lesions differs according to in-stent neointimal characteristics on optical coherence tomography (OCT). In particular, patients who show in-stent heterogeneous neointima are associated with a higher incidence of target lesion revascularization (TLR) compared with those who show in-stent non-heterogeneous neointima. However, the relationship between in-stent neointimal characteristics and native coronary atherosclerosis progression has not been clearly elucidated. The study aimed to investigate the relationship ...
      Read Full Article
    11. Computer-aided detection and abnormality score for the outer retinal layer in optical coherence tomography

      Computer-aided detection and abnormality score for the outer retinal layer in optical coherence tomography
      Background: To develop computer-aided detection (CADe) of ORL abnormalities in the retinal pigmented epithelium, interdigitation zone and ellipsoid zone via optical coherence tomography (OCT). Methods: In this retrospective study, healthy participants with normal ORL, and patients with abnormality of ORL including choroidal neovascularisation (CNV) or retinitis pigmentosa (RP) were included. First, an automatic segmentation deep learning (DL) algorithm, CADe, was developed for the three outer retinal layers using 120 handcraft ...
      Read Full Article
    12. Utilization potential of intraluminal optical coherence tomography for the Eustachian tube

      Utilization potential of intraluminal optical coherence tomography for the Eustachian tube
      Imaging the Eustachian tube is challenging because of its complex anatomy and limited accessibility. This study fabricated a fiber-based optical coherence tomography (OCT) catheter and investigated its potential for assessing the Eustachian tube anatomy. A customized OCT system and an imaging catheter, termed the Eustachian OCT, were developed for visualizing the Eustachian tube. Three male swine cadaver heads were used to study OCT image acquisition and for subsequent histologic correlation ...
      Read Full Article
    13. Relationship between N95 Amplitude of Pattern Electroretinogram and Optical Coherence Tomography Angiography in Open-Angle Glaucoma

      Relationship between N95 Amplitude of Pattern Electroretinogram and Optical Coherence Tomography Angiography in Open-Angle Glaucoma
      Purpose: The pattern electroretinogram (PERG) is useful to detect retinal ganglion cell (RGC) damage in patients with glaucoma. Optical coherence tomography angiography (OCTA) measures retinal vessel density (VD), which is known to be reduced in glaucoma. There may be correlations between parameters of the PERG and OCTA in open-angle glaucoma (OAG). Methods: In total, 95 eyes of 95 OAG patients and 102 eyes of 102 normal controls were included in ...
      Read Full Article
    14. Optical coherence tomography-based machine learning for predicting fractional flow reserve in intermediate coronary stenosis: a feasibility study

      Optical coherence tomography-based machine learning for predicting fractional flow reserve in intermediate coronary stenosis: a feasibility study
      Machine learning approaches using intravascular optical coherence tomography (OCT) to predict fractional flow reserve (FFR) have not been investigated. Both OCT and FFR data were obtained for left anterior descending artery lesions in 125 patients. Training and testing groups were partitioned in the ratio of 5:1. The OCT-based machine learning-FFR was derived for the testing group and compared with wire-based FFR in terms of ischemia diagnosis (FFR 0.8 ...
      Read Full Article
    15. 1-15 of 248 1 2 3 4 ... 15 16 17 »
  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 Yonsei University

    Yonsei University

    Yonsei University. As the oldest private university in Korea, Yonsei University was first established in 1885.  Yonsei’s main campus is ensconced in a spacious, picturesque and natural setting that is located minutes away from of the economic, political, and cultural centers of Seoul's metropolitan downtown. Our 3,500 eminent faculty members conduct cutting-edge research across all academic disciplines. Our 18 graduate schools, 19 colleges and 131 subsidiary institutions plays host to a student body that consists of the most selective pool of high school and university graduates from around the world.  Yonsei University College of Medicine is the medical college associated with Yonsei  University.