1. Northwestern University

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    1. Mentioned In 123 Articles

    2. Projection resolved optical coherence tomography angiography to distinguish flow signal in retinal angiomatous proliferation from flow artifact

      Projection resolved optical coherence tomography angiography to distinguish flow signal in retinal angiomatous proliferation from flow artifact
      ...ago, Illinois between June 2017 and January 2019. The study was approved by the institutional review board of Northwestern University, followed the tenets of the Declaration of Helsinki, and was performed in accordance w...
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    3. An overview of optical coherence tomography angiography and the posterior pole

      An overview of optical coherence tomography angiography and the posterior pole
      Optical coherence tomography angiography is a relatively new, noninvasive technology that has revolutionized imaging of the retinal and choroidal microvasculature. This technology is based on the detection of movement or changes that represent moving red cells in sequential optical coherence tomography scans. As with other established imaging technologies, it has unique benefits as well as certain disadvantages, which include a limited field of view and vulnerability to imaging artifacts. However ...
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    4. Northwestern University Receives NIH Grant for Oxygen Delivery and Metabolism in Diabetic Retinopathy Using Visible-Light Optical Coherence Tomography.

      Northwestern University Receives NIH Grant  for Oxygen Delivery and Metabolism in Diabetic Retinopathy Using Visible-Light Optical Coherence Tomography.
      ...r improved monitoring of the functional status of the retina in DR in humans.

      Northwestern University Receives a 2019 NIH Grant for $39,955 for Oxygen Delivery and Metabolism in Diabetic R...

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    5. Parafoveal vessel loss and correlation between peripapillary vessel density and cognitive performance in amnestic mild cognitive impairment and early Alzheimer’s Disease on optical coherence tomography angiography

      Parafoveal vessel loss and correlation between peripapillary vessel density and cognitive performance in amnestic mild cognitive impairment and early Alzheimer’s Disease on optical coherence tomography angiography
      ... and their similar severity (mild). The study was approved prospectively by the Institutional Review Board of Northwestern University and conducted in accordance with the Health Insurance Portability and Accountability A...
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    6. Hemodynamic Response of the Three Macular Capillary Plexuses in Dark Adaptation and Flicker Stimulation Using Optical Coherence Tomography Angiography

      Hemodynamic Response of the Three Macular Capillary Plexuses in Dark Adaptation and Flicker Stimulation Using Optical Coherence Tomography Angiography
      Purpose : To assess retinal microvascular reactivity during dark adaptation and the transition to ambient light and after flicker stimulation using optical coherence tomography angiography (OCTA). Methods : Fifteen eyes of 15 healthy participants were dark adapted for 45 minutes followed by OCTA imaging in the dark-adapted state. After 5 minutes of normal lighting, subjects underwent OCTA imaging. Participants were then subjected to a flashing light-emitting diode (LED) light and repeat OCTA ...
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    7. Spectral contrast optical coherence tomography angiography enables single-scan vessel imaging

      Spectral contrast optical coherence tomography angiography enables single-scan vessel imaging
      Optical coherence tomography angiography relies on motion for contrast and requires at least two data acquisitions per pointwise scanning location. We present a method termed spectral contrast optical coherence tomography angiography using visible light that relies on the spectral signatures of blood for angiography from a single scan using endogenous contrast. We demonstrate the molecular sensitivity of this method, which enables lymphatic vessel, blood, and tissue discrimination. Optical coherence tomography ...
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    8. Quantitative quality-control metrics for in vivo oximetry in small vessels by visible light optical coherence tomography angiography

      Quantitative quality-control metrics for in vivo oximetry in small vessels by visible light optical coherence tomography angiography
      Biological functions rely on local microvasculature to deliver oxygen and nutrients and carry away metabolic waste. Alterations to local oxygenation levels are manifested in diseases including cancer, diabetes mellitus, etc. The ability to quantify oxygen saturation (sO 2 ) within microvasculature in vivo to assess local tissue oxygenation and metabolic function is highly sought after. Visible light optical coherence tomography (vis-OCT) angiography has shown promise in reaching this goal. However, achieving ...
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    9. Optical coherence tomography angiography findings in cystoid macular degeneration associated with central serous chorioretinopathy

      Optical coherence tomography angiography findings in cystoid macular degeneration associated with central serous chorioretinopathy
      Aim To describe the optical coherence tomography (OCT) characteristics and to identify and analyse the incidence of choroidal neovascular (CNV) network seen on optical coherence tomography angiography (OCTA) in eyes with cystoid macular degeneration (CMD) associated with central serous chorioretinopathy (CSCR). Methods This was a retrospective, observational study of 29 eyes of 25 patients who were previously diagnosed as CSCR with CMD. Baseline patient characteristics, best-corrected visual acuity (BCVA), evidence ...
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    10. Monitoring Acute Stroke in Mouse Model Using Laser Speckle Imaging-Guided Visible-Light Optical Coherence Tomography

      Monitoring Acute Stroke in Mouse Model Using Laser Speckle Imaging-Guided Visible-Light Optical Coherence Tomography
      Objective: Monitoring hemodynamic and vascular changes in the acute stages of mouse stroke models is invaluable in studying ischemic stroke pathophysiology. However, there lacks a tool to simultaneously and dynamically investigate these changes. Methods: We integrated laser speckle imaging (LSI) and visible-light optical coherence tomography (Vis-OCT) to reveal dynamic vascular responses in acute stages in the distal middle cerebral artery occlusion (dMCAO) model in rodents. LSI provides full-field, real-time imaging ...
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  2. 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.