1. Oregon Health & Science University

    0 Comments Leave a Comment

    1-15 of 413 1 2 3 4 ... 26 27 28 »
    1. Mentioned In 413 Articles

    2. Signal strength reduction effects in optical coherence tomographic angiography

      Signal strength reduction effects in optical coherence tomographic angiography
      Objective To elucidate the relationship between vessel density (VD) measurements and signal strength in optical coherence tomography angiography (OCTA). Design Cross-sectional study. Subjects: Healthy volunteers. Methods OCTA images obtained from healthy volunteers were analyzed to demonstrate the relationship between signal strength index (SSI) and VD. Experiments were performed to determine the effects of signal strength reduction on VD measurements on the Optovue/AngioVue and Cirrus/AngioPlex OCTA systems. Signal strength ...
      Read Full Article
    3. Maximum value projection produces better en face OCT angiograms than mean value projection

      Maximum value projection produces better en face OCT angiograms than mean value projection
      Optical coherence tomography angiography (OCTA) images rely on en face data projections for both qualitative and quantitative interpretation. Both maximum value and mean value projections are commonly used, and many researchers consider them essentially interchangeable approaches. On the contrary, we find that maximum value projection achieves a consistently higher signal-to-noise ratio and higher image contrast across multiple vascular layers, in both healthy eyes and for each disease examined.
      Read Full Article
    4. OHSU Receives NIH Grant ffor Optical Coherence Tomography-Aided Differential Diagnosis and Treatment of Irregular Corneas

      OHSU Receives NIH Grant ffor Optical Coherence Tomography-Aided Differential Diagnosis and Treatment of Irregular Corneas
      ...r patients with corneal scars, stromal dystrophies, and other irregularities.

      Oregon Health and Science University Receives a 2019 NIH Grant for $250,000 for Optical Coherence Tomography-A...

      Read Full Article
    5. OHSU Receives NIH Grant for Wide-Field and Projection-Resolved Optical Coherence Angiography in Diabetic Retinopathy

      OHSU Receives NIH Grant for Wide-Field and Projection-Resolved Optical Coherence Angiography in Diabetic Retinopathy
      ...te WF- and PR-OCTA measurements of nonperfusion and neovascularization in comparison with ultrawide-field FA. Oregon Health and Science University Receives a 2019 NIH Grant for $281,474 for Wide-Field and Projection-Reso...
      Read Full Article
    6. Intraoperative Optical Coherence Tomography to Guide Corneal Biopsy: A Case Report

      Intraoperative Optical Coherence Tomography to Guide Corneal Biopsy: A Case Report
      Purpose: To report on a new application of intraoperative optical coherence tomography (OCT) as a real-time imaging tool to help guide corneal biopsy . Methods: Single case report. After the negative result of a corneal biopsy , we used intraoperative OCT during repeat biopsy to assist in depth and acquisition of an anterior stromal opacity suspected to be immunoglobulin deposits. Results: The use of intraoperative OCT is a novel tool, which assisted ...
      Read Full Article
    7. WF and Pr OCTA in Diabetic Retinopathy

      WF and Pr OCTA in Diabetic Retinopathy
      Diabetic retinopathy (DR) is a leading cause of vision loss in working-age Americans. Capillary damage from hyperglycemia causes vision loss through downstream effects, such as retinal ischemia, edema, and neovascularization (NV). Proper screening and timely treatment with laser photocoagulation and anti-vascular endothelial growth factor (VEGF) injections can minimize morbidity. In the last decade, clinicians have been able to use objective structural data from optical coherence tomography (OCT) to guide the ...
      Read Full Article
    8. Systems and methods for automated segmentation of retinal fluid in optical coherence tomography

      Systems and methods for automated segmentation of retinal fluid in optical coherence tomography
      Disclosed herein are methods and systems for the identification and characterization of fluid accumulation in the retina using OCT imaging. The disclosed methods and systems are directed to the automated segmentation of retinal fluid using 2D or 3D structural OCT scan images. Approaches for visualization and quantification of both intraretinal and subretinal fluid are presented. Methods are also disclosed for using OCT angiography data to improve the quality of retinal ...
      Read Full Article
    9. David Huang Listed on Ophthalmologist Magazine's 2019 Power List as #1 Inventor!

      David Huang Listed on Ophthalmologist Magazine's 2019 Power List as #1 Inventor!
      We are delighted to share The Ophthalmologists Power List 2019 with you. This year saw a record number of nominations almost 2,000 across five categories: Champions for Change, Inventors, Emerging Leaders, Mentors, and Surgical Pioneers. Each nomination celebrates an individual who has made a significant impact on the field, whether that is through a philanthropic initiative or their ongoing commitment to innovation. The diversity of the categories and the ...
      Read Full Article
    10. Detection of Non-exudative Choroidal Neovascularization and Progression to Exudative Choroidal Neovascularization Using Optical Coherence Tomography Angiography

      Detection of Non-exudative Choroidal Neovascularization and Progression to Exudative Choroidal Neovascularization Using Optical Coherence Tomography Angiography
      Objective To detect non-exudative choroidal neovascularization (CNV) in age-related macular degeneration with optical coherence tomography angiography (OCTA) and determine risk of developing exudative CNV compared to eyes without non-exudative CNV. Design Prospective longitudinal observational study Participants Consecutive patients with drusen and pigmentary changes in the study eye and exudative neovascular AMD in the fellow eye. Methods Study participants underwent spectral domain OCTA (AngioVue, Optovue, Inc), clinical exam, and structural OCT ...
      Read Full Article
    11. Systems and methods to remove shadowgraphic flow projections in OCT angiography

      Systems and methods to remove shadowgraphic flow projections in OCT angiography
      Methods and systems for suppressing shadowgraphic flow projection artifacts in OCT angiography images of a sample are disclosed. In one example approach, normalized OCT angiography data is analyzed at the level of individual A-scans to classify signals as either flow or projection artifact. This classification information is then used to suppress projection artifacts in the three dimensional OCT angiography dataset.
      Read Full Article
    12. Real-time cross-sectional and en face OCT angiography guiding high-quality scan acquisition

      Real-time cross-sectional and en face OCT angiography guiding high-quality scan acquisition
      Defocusing, vignetting, and bulk motion degrade the image quality of optical coherence tomography angiography (OCTA) more significantly than structural OCT. The assessment of focus, alignment conditions, and stability of imaging subjects in commercially available OCTA systems are currently based on OCT signal quality alone, without knowledge of OCTA signal quality. This results in low yield rates for further quantification. In this Letter, we developed a novel OCTA platform based on ...
      Read Full Article
    13. Visual Optics Postdoctoral/Research Fellow Opening at Oregon Health & Science University

      Visual Optics Postdoctoral/Research Fellow Opening at Oregon Health & Science University
      ...and with team members. To apply, please contact Professors David Huang ( huangd@ohsu.edu ) and Yan Li ( liyan@ohsu.edu ). A postdoctoral research fellow position is available in the Center for Ophthalmic Optics & Lasers ...
      Read Full Article
    14. DETECTION OF CLINICALLY UNSUSPECTED RETINAL NEOVASCULARIZATION WITH WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      DETECTION OF CLINICALLY UNSUSPECTED RETINAL NEOVASCULARIZATION WITH WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY
      Purpose: To evaluate wide-field optical coherence tomography angiography (OCTA) for detection of clinically unsuspected neovascularization (NV) in diabetic retinopathy (DR). Methods: This prospective observational single-center study included adult patients with a clinical diagnosis of nonproliferative DR. Participants underwent a clinical examination, standard 7-field color photography, and OCTA with commercial and prototype swept-source devices. The wide-field OCTA was achieved by montaging five 6 10-mm scans from a prototype device into a ...
      Read Full Article
    15. Automated detection of shadow artifacts in optical coherence tomography angiography

      Automated detection of shadow artifacts in optical coherence tomography angiography
      Frequently, when imaging retinal vasculature with optical coherence tomography angiography (OCTA) in diseased eyes, there are unavoidable obstacles to the propagation of light such as vitreous floaters or the pupil boundary. These obstacles can block the optical coherence tomography (OCT) beam and impede the visualization of the underlying retinal microcirculation. Detecting these shadow artifacts is especially important in the quantification of metrics that assess retinal disease progression because they might ...
      Read Full Article
    16. 4-D Computational Modeling of Cardiac Outflow Tract Hemodynamics over Looping Developmental Stages in Chicken Embryos

      4-D Computational Modeling of Cardiac Outflow Tract Hemodynamics over Looping Developmental Stages in Chicken Embryos
      Cardiogenesis is interdependent with blood flow within the embryonic system. Recently, a number of studies have begun to elucidate the effects of hemodynamic forces acting upon and within cells as the cardiovascular system begins to develop. Changes in flow are picked up by mechanosensors in endocardial cells exposed to wall shear stress (the tangential force exerted by blood flow) and by myocardial and mesenchymal cells exposed to cyclic strain (deformation ...
      Read Full Article
    17. 1-15 of 413 1 2 3 4 ... 26 27 28 »
  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 Oregon Health & Science University

    Oregon Health & Science University

    Oregon Health & Science University (OHSU) is a public university in Oregon with a main campus, including three hospitals, in Portland and a smaller campus in Hillsboro. It was formed in 1974 as the University of Oregon Health Sciences Center, combining state dentistry, medicine, and nursing programs into a single center. It was renamed Oregon Health Sciences University in 1981 and took its current name in 2001, as part of a merger with the Oregon Graduate Institute of Science and Technology (OGI) in Hillsboro. In addition, the university has several partnership programs including a joint PharmD Pharmacy program with Oregon State University.