1. Oregon Health & Science University

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    1. Mentioned In 248 Articles

    2. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF DIABETIC RETINOPATHY

      OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF DIABETIC RETINOPATHY
      Purpose: To describe the optical coherence tomography angiography features of diabetic retinopathy. Methods: Using a 70 kHz optical coherence tomography and the split-spectrum amplitude decorrelation angiography algorithm, 6 mm x 6 mm 3-dimensional angiograms of the macula of 4 patients with diabetic retinopathy were obtained and compared with fluorescein angiography for features cataloged by the Early Treatment of Diabetic Retinopathy Study. Results: Optical coherence tomography angiography detected enlargement and distortion ...
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    3. Automated choroidal neovascularization detection algorithm for optical coherence tomography angiography

      Automated choroidal neovascularization detection algorithm for optical coherence tomography angiography
      Optical coherence tomography angiography has recently been used to visualize choroidal neovascularization (CNV) in participants with age-related macular degeneration. Identification and quantification of CNV area is important clinically for disease assessment. An automated algorithm for CNV area detection is presented in this article. It relies on denoising and a saliency detection model to overcome issues such as projection artifacts and the heterogeneity of CNV. Qualitative and quantitative evaluations were performed ...
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    4. Oregon Health and Science University Receives NIH Grant for Studying In Vivo Organ of Corti Mechanoelectric Physiology

      Oregon Health and Science University Receives  NIH Grant for Studying In Vivo Organ of Corti Mechanoelectric Physiology
      ...plication of light will modulate the CA and reveal it's spatial extent along the length of the cochlear duct. Oregon Health and Science University Receives a 2015 NIH Grant for $370,365 for Studying In Vivo Organ of Cort...
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    5. Polarization sensitive spectral domain OCT using an interference signal modulated at a constant frequency and a two-path reference arm with a single reference mirror

      Polarization sensitive spectral domain OCT using an interference signal modulated at a constant frequency and a two-path reference arm with a single reference mirror
      Embodiments include apparatuses and methods for spectral domain polarization sensitive optical coherence tomography including a reference assembly for detection of the polarization sensitive spectral interferograms formed by vertically and horizontally polarized beam components. Interference signals between the reference and sample beams may be modulated at a constant frequency.
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    6. Evaluation of the effect of elevated intraocular pressure and reduced ocular perfusion pressure on retinal capillary bed filling and total retinal blood flow in rats by OMAG/OCT

      Evaluation of the effect of elevated intraocular pressure and reduced ocular perfusion pressure on retinal capillary bed filling and total retinal blood flow in rats by OMAG/OCT
      Purpose To determine if retinal capillary filling is preserved in the face of acutely elevated intraocular pressure (IOP) in anesthetized rats, despite a reduction in total retinal blood flow (RBF), using optical microangiography/optical coherence tomography (OMAG/OCT). Methods OMAG provided the capability of depth-resolved imaging of the retinal microvasculature down to the capillary level. Doppler OCT was applied to measure the total RBF using an enface integration approach. The ...
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    7. ASSESSING PHOTORECEPTOR STRUCTURE ASSOCIATED WITH ELLIPSOID ZONE DISRUPTIONS VISUALIZED WITH OPTICAL COHERENCE TOMOGRAPHY

      ASSESSING PHOTORECEPTOR STRUCTURE ASSOCIATED WITH ELLIPSOID ZONE DISRUPTIONS VISUALIZED WITH OPTICAL COHERENCE TOMOGRAPHY
      Purpose: To compare images of photoreceptor layer disruptions obtained with optical coherence tomography (OCT) and adaptive optics scanning light ophthalmoscopy (AOSLO) in a variety of pathologic states. Methods: Five subjects with photoreceptor ellipsoid zone disruption as per OCT and clinical diagnoses of closed-globe blunt ocular trauma (n = 2), macular telangiectasia type 2 (n = 1), blue-cone monochromacy (n = 1), or cone-rod dystrophy (n = 1) were included. Images were acquired within and ...
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    8. Postdoctoral Positions in Biomedical Optics and Optical Coherence Tomography at the Center for Ophthalmic Optics & Lasers, Oregon Health & Science University

      Postdoctoral Positions in Biomedical Optics and Optical Coherence Tomography at the Center for Ophthalmic Optics & Lasers, Oregon Health & Science University
      ... biomedical optics at the Center for Ophthalmic Optics & Lasers (www.COOLLab.net) in the Casey Eye Institute, Oregon Health & Science University (OHSU). The COOL laboratory is a multidisciplinary team that incorporates o...
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    9. Corneal Epithelial Remodeling after LASIK Measured by Fourier-Domain Optical Coherence Tomography

      Corneal Epithelial Remodeling after LASIK Measured by Fourier-Domain Optical Coherence Tomography
      Purpose . To quantify corneal epithelial thickness changes after myopic LASIK by OCT. Methods. Epithelial thickness before and after myopic LASIK were measured by a Fourier-domain OCT system. Average central (within 1mm diameter) and paracentral epithelial thickness (5~6mm diameter) before and after LASIK were compared. Correlation between central epithelial thickness change and laser spherical equivalent setting was evaluated. An epithelial smoothing constant was estimated based on a mathematical model published ...
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    10. En face Doppler total retinal blood flow measurement with 70 kHz spectral optical coherence tomography

      En face Doppler total retinal blood flow measurement with 70 kHz spectral optical coherence tomography
      An automated algorithm was developed for total retinal blood flow (TRBF) using 70-kHz spectral optical coherence tomography (OCT). The OCT was calibrated for the transformation from Doppler shift to speed based on a flow phantom. The TRBF scan pattern contained five repeated volume scans ( 2 2 mm ) obtained in 3 s and centered on central retinal vessels in the optic disc. The TRBF was calculated using an en face Doppler ...
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    11. Macular Perfusion in Healthy Chinese: An Optical Coherence Tomography Angiogram Study

      Macular Perfusion in Healthy Chinese: An Optical Coherence Tomography Angiogram Study
      Purpose. To investigate macular perfusion in healthy Chinese individuals and examine its dependence on age and sex. Methods. Healthy adult Chinese individuals were recruited. Macular perfusion was measured by spectral-domain optical coherence tomography (OCT) using the split-spectrum amplitude-decorrelation angiography (SSADA) algorithm. The parafoveal flow index and vessel area density as well as the area of the foveal capillary-free zone (CFZ) were quantified. Results. A total of 76 eyes in 45 ...
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    12. Optical Coherence Tomography Angiography of Peripapillary Retinal Blood Flow Response to Hyperoxia

      Optical Coherence Tomography Angiography of Peripapillary Retinal Blood Flow Response to Hyperoxia
      Purpose. To measure the change in peripapillary retinal blood flow in response to hyperoxia by using optical coherence tomography (OCT) angiography. Methods. One eye of each healthy human participants (six) was scanned with a commercial high-speed (70 kHz) spectral OCT. Scans were captured twice after 10-minute exposures to normal breathing (baseline) and hyperoxia. Blood flow was detected by the split-spectrum amplitude-decorrelation angiography (SSADA) algorithm. Peripapillary retinal blood flow index and ...
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    13. Staging of development in Terrien's degeneration based on corneal curvatures detected by optical coherence tomography

      Staging of development in Terrien's degeneration based on corneal curvatures detected by optical coherence tomography
      Purpose We aimed to explore a new classification system based on the change of focal corneal curvatures and corneal thickness in Terriens corneal degeneration with optical coherence tomography. Methods This was a cross-sectional study. Ninety eyes of 59 patients with Terriens degeneration were examined with slit lamp biomicroscopy, Orbscan II corneal tomography and the Visante OCT system, and were staged according to Svegess classification. Results The ratio of female to ...
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    14. Staging of development in Terrien’s degeneration based on corneal curvatures detected by optical coherence tomography

      Staging of development in Terrien’s degeneration based on corneal curvatures detected by optical coherence tomography
      Purpose We aimed to explore a new classification system based on the change of focal corneal curvatures and corneal thickness in Terriens corneal degeneration with optical coherence tomography. Methods This was a cross-sectional study. Ninety eyes of 59 patients with Terriens degeneration were examined with slit lamp biomicroscopy, Orbscan II corneal tomography and the Visante OCT system, and were staged according to Svegess classification. Results The ratio of female to ...
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    15. 1-15 of 248 1 2 3 4 ... 15 16 17 »
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  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.