1. Northwestern University

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    1. Mentioned In 139 Articles

    2. Application of automated quantification of fluid volumes to anti-VEGF therapy of neovascular age-related macular degeneration

      Explore ScienceDirect Ophthalmology
      Application of automated quantification of fluid volumes to anti-VEGF therapy of neovascular age-related macular degeneration
      Purpose Anti-VEGF treatment of neovascular age-related macular degeneration (AMD) is a highly effective advance in the retinal armentarium. Optical coherence tomography (OCT) offering three-dimensional imaging of the retina is widely used to guide treatment. Although poor outcomes reported from clinical practice are multifactorial, availability of reliable, reproducible, and quantitative evaluation tools to accurately measure the fluid response i.e. a VEGF meter may be a better means of monitoring and ...
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      Mentions: Medical University of Vienna Northwestern University Ursula Schmidt-Erfurth

    3. Exploring in vivo Optical Imaging Oximetry by Visible Light Optical Coherence Tomography (Thesis)

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      Exploring in vivo Optical Imaging Oximetry by Visible Light Optical Coherence Tomography (Thesis)
      Biological functions rely on microvasculature to deliver oxygen and nutrients and carry away metabolic waste. Measuring microvascular oxygen saturation (sO2), the fraction of oxygensaturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood, can assess tissue oxygenation and provide insights into tissue metabolism, inflammation, and oxygen-related pathologies. Several major diseases, such as cancer, diabetes mellitus, cardiovascular diseases, hypertension, chronic kidney disease, and neurodegenerative diseases, are related to local microvascular ...
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      Mentions: Northwestern University

    4. In Vivo Imaging of Schlemm's Canal and Limbal Vascular Network in Mouse Using Visible-Light OCT

      Explore IOVS Journal Ophthalmology
      In Vivo Imaging of Schlemm's Canal and Limbal Vascular Network in Mouse Using Visible-Light OCT
      Purpose : To validate the ability of visible-light optical coherence tomography (vis-OCT) in imaging the full Schlemm's canal (SC) and its surrounding limbal vascular network in mice in vivo through a compound circumlimbal scan. Methods : We developed an anterior segment vis-OCT system and a compound circumlimbal scanning method, which montages eight rotated raster scans. We calibrated the circumlimbal scan geometry using a three-dimensional printed phantom eyeball before imaging wild-type C57BL ...
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      Mentions: Joel S. Schuman Northwestern University Hao F. Zhang

    5. OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF FOCAL CHOROIDAL EXCAVATION AND THE CHOROIDAL STROMA VARIATIONS WITH OCCURRENCE OF EXCAVATION

      Explore LWW Online Ophthalmology
      OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY FEATURES OF FOCAL CHOROIDAL EXCAVATION AND THE CHOROIDAL STROMA VARIATIONS WITH OCCURRENCE OF EXCAVATION
      Purpose: To describe retinal and choroidal vascular changes and choroidal stroma variations occurring in focal choroidal excavation (FCE). Methods: Study design was a cross-sectional case series. Consecutive patients affected by FCE and healthy controls were recruited. All patients underwent complete ophthalmologic assessment and multimodal imaging, including structural optical coherence tomography and optical coherence tomography angiography. Choroidal thickness and stromal index were calculated from structural optical coherence tomography images. Moreover, we ...
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      Mentions: Northwestern University San Raffaele Scientfic Institute

    6. Optical coherence tomography angiography reveals progressive worsening of retinal vascular geometry in diabetic retinopathy and improved geometry after panretinal photocoagulation

      Explore Journals | PLOS Ophthalmology
      Optical coherence tomography angiography reveals progressive worsening of retinal vascular geometry in diabetic retinopathy and improved geometry after panretinal photocoagulation
      Purpose To quantify vessel tortuosity and fractal dimension of the superficial capillary plexus (SCP) of the macula in different stages of diabetic retinopathy (DR), and following panretinal photocoagulation (PRP) using optical coherence tomography angiography (OCTA). Methods 75 eyes of 75 subjects were divided into five groups; healthy controls, diabetes with no clinical DR, non-proliferative diabetic retinopathy (NPDR), proliferative diabetic retinopathy (PDR) and patients who received PRP for PDR (PDR+PRP ...
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      Mentions: National Institutes of Health Northwestern University

    7. An optical coherence tomography-based grading of diabetic maculopathy proposed by an international expert panel: The European School for Advanced Studies in Ophthalmology classification

      Explore SAGE Journals Ophthalmology
      An optical coherence tomography-based grading of diabetic maculopathy proposed by an international expert panel: The European School for Advanced Studies in Ophthalmology classification
      Aims: To present an authoritative, universal, easy-to-use morphologic classification of diabetic maculopathy based on spectral domain optical coherence tomography. Methods: The first draft of the project was developed based on previously published classifications and a literature search regarding the spectral domain optical coherence tomography quantitative and qualitative features of diabetic maculopathy. This draft was sent to an international panel of retina experts for a first revision. The panel met at ...
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      Mentions: Medical University of Vienna Universität Rostock Northwestern University

    8. Measuring light scattering and absorption in corals with Inverse Spectroscopic Optical Coherence Tomography (ISOCT): a new tool for non-invasive monitoring

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      Measuring light scattering and absorption in corals with Inverse Spectroscopic Optical Coherence Tomography (ISOCT): a new tool for non-invasive monitoring
      The success of reef-building corals for 200 million years has been dependent on the mutualistic interaction between the coral host and its photosynthetic endosymbiont dinoflagellates (family Symbiodiniaceae) that supply the coral host with nutrients and energy for growth and calcification. While multiple light scattering in coral tissue and skeleton significantly enhance the light microenvironment for Symbiodiniaceae, the mechanisms of light propagation in tissue and skeleton remain largely unknown due to ...
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      Mentions: Northwestern University

    9. New imaging platform examines mechanisms behind coral bleaching

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      New imaging platform examines mechanisms behind coral bleaching
      As coral reefs deteriorate in the face of climate change, an interdisciplinary Northwestern Engineering research team has developed an innovative method to image coral nanoscale structures and quantify pigment absorption in live corals, an indicator of coral health. The imaging platform could become a valuable tool to help marine biologists better understand coral physiology as well measure and monitor coral health. Reef building corals provide a home to more than ...
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      Mentions: Northwestern University Vadim Backman

    11. VIS-OCT Opens Eyes to New Approaches

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      VIS-OCT Opens Eyes to New Approaches
      First reported in 1991 by Huang and colleagues 1 , OCT has become an important imaging tool for ophthalmology following innovations over the past three decades. OCT noninvasively provides 3D in vivo optical biopsy with microscopic resolution in the eye at a depth range up to the choroid 2 . Besides 3D anatomical imaging, OCT can also provide functional information. The most notable functional extension is OCT angiography (OCTA), which can map ...
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      Mentions: Northwestern University Hao F. Zhang Opticent Health

    13. Longitudinal deep-brain imaging in mouse using visible-light optical coherence tomography through chronic microprism cranial window

      Explore OSA | OSA Publishing Developmental Biology , Neurology
      Longitudinal deep-brain imaging in mouse using visible-light optical coherence tomography through chronic microprism cranial window
      We longitudinally imaged both the superficial and deep cortical microvascular networks in brains of healthy mice and in a mouse model of stroke in vivo using visible-light optical coherence tomography (vis-OCT). We surgically implanted a microprism in mouse brains sealed by a chronic cranial window. The microprism enabled vis-OCT to image the entire depth of the mouse cortex. Following microprism implantation, we imaged the mice for 28 days and found ...
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      Mentions: Northwestern University Hao F. Zhang Roman V. Kuranov

    14. Optical coherence tomography diagnostic signs in posterior uveitis

      Explore ScienceDirect Ophthalmology
      Optical coherence tomography diagnostic signs in posterior uveitis
      A diagnostic sign refers to a quantifiable biological parameter that is measured and evaluated as an indicator of normal biological, pathogenic, or pharmacologic responses to a therapeutic intervention. When used in translational research discussions, the term itself often alludes to a signs used to accelerate or aid in diagnosis or monitoring and provide insight into personalized medicine. Many new diagnostic signs are being developed that involve imaging technology. Optical coherence ...
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      Mentions: Case Western Reserve University Northwestern University University of Sydney

    15. Speckle reduction in visible-light optical coherence tomography using scan modulation

      Explore SPIE Digital Library Ophthalmology
      Speckle reduction in visible-light optical coherence tomography using scan modulation
      We present a technique to reduce speckle in visible-light optical coherence tomography (vis-OCT) that preserves fine structural details and is robust against sample motion. Specifically, we locally modulate B-scans orthogonally to their axis of acquisition. Such modulation enables acquisition of uncorrelated speckle patterns from similar anatomical locations, which can be averaged to reduce speckle. To verify the effectiveness of speckle reduction, we performed in-vivo retinal imaging using modulated raster and ...
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      Mentions: Joel S. Schuman Hiroshi Ishikawa Northwestern University

    16. Northwestern University Receives NIH Grant for Investigating Nanoscale Neuronal Damages in Early Glaucoma Towards Clinical Optical Detection

      Explore Optical Coherence Tomography News Ophthalmology , Funding
      Northwestern University Receives NIH Grant for Investigating Nanoscale Neuronal Damages in Early Glaucoma Towards Clinical Optical Detection
      ... for clinical glaucoma diagnoses in a chronic model of experimental glaucoma.

      Northwestern University Receives a 2019 NIH Grant for $535,063 for Investigating Nanoscale Neuronal Damages in...

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      Mentions: National Institutes of Health Northwestern University Hao F. Zhang
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  4. About Northwestern University

    Northwestern University

    Northwestern University is a private research university located in Evanston, Illinois and downtown Chicago, Illinois.  Several of Northwestern's professional schools such as the School of Law, the Feinberg School of Medicine, and parts of the Kellogg School of Management are located in the Streeterville neighborhood of downtown Chicago. 

    Biophotonics Laboratory at Northwestern University.  The main direction of the Biophotonics laboratory (Principal Investigator: Prof. Vadim Backman) is the development of novel optical spectral and imaging techniques for non-invasive screening, diagnosis and detection of disease as well as characterization of biological and bioengineered tissue.

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