1. Cornell University

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    1. Mentioned In 65 Articles

    2. Volumetric optical coherence microscopy with a high space-bandwidth-time product enabled by hybrid adaptive optics

      Volumetric optical coherence microscopy with a high space-bandwidth-time product enabled by hybrid adaptive optics
      Optical coherence microscopy (OCM) is a promising modality for high resolution imaging, but has limited ability to capture large-scale volumetric information about dynamic biological processes with cellular resolution. To enhance the throughput of OCM, we implemented a hybrid adaptive optics (hyAO) approach that combines computational adaptive optics with an intentionally aberrated imaging beam generated via hardware adaptive optics. Using hyAO, we demonstrate the depth-equalized illumination and collection ability of an ...
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    3. Photonic force optical coherence elastography for three-dimensional mechanical microscopy

      Photonic force optical coherence elastography for three-dimensional mechanical microscopy
      Optical tweezers are an invaluable tool for non-contact trapping and micro-manipulation, but their ability to facilitate high-throughput volumetric microrheology of biological samples for mechanobiology research is limited by the precise alignment associated with the excitation and detection of individual bead oscillations. In contrast, radiation pressure from a low-numerical aperture optical beam can apply transversely localized force over an extended depth range. Here we present photonic force optical coherence elastography (PF-OCE ...
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    4. Optical Coherence Tomography Angiography to Evaluate Ischemia in Diabetic Eyes

      Optical Coherence Tomography Angiography to Evaluate Ischemia in Diabetic Eyes
      The retinal vasculature consists of a superficial vascular plexus (SVP), an intermediate capillary plexus (ICP), and a deep capillary plexus (DCP). There is also a fourth regional vascular network, the radial peripapillary capillary plexus (RPCP). The RPCP runs in parallel with the nerve fiber layer, the SVP is located within the ganglion cell layer and the deeper plexuses, and the ICP and DCP are above and below the inner nuclear ...
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    5. SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDINGS IN COATS DISEASE

      SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDINGS IN COATS DISEASE
      Purpose: To evaluate microstructural retinal abnormalities on spectral domain optical coherence tomography (SD-OCT) imaging of eyes with Coats disease . Methods: This is a multicenter, retrospective study in which SD-OCT images of patients with treatment-naive Coats disease were correlated with clinical examination and visual acuity and, when available, followed longitudinally over time. Results: Macular SD-OCT of 27 eyes with Coats disease revealed intraretinal edema (59%), intraretinal exudates (67%), subretinal fluid (37 ...
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    6. Depth-resolved measurement of optical radiation-pressure forces with optical coherence tomography

      Depth-resolved measurement of optical radiation-pressure forces with optical coherence tomography
      A weakly focused laser beam can exert sufficient radiation pressure to manipulate microscopic particles over a large depth range. However, depth-resolved continuous measurement of radiation-pressure force profiles over an extended range about the focal plane has not been demonstrated despite decades of research on optical manipulation. Here, we present a method for continuous measurement of axial radiation-pressure forces from a weakly focused beam on polystyrene micro-beads suspended in viscous fluids ...
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    7. Photonic force optical coherence elastography for threedimensional mechanical microscopy

      Photonic force optical coherence elastography for threedimensional mechanical microscopy
      Optical tweezers are an invaluable tool for non-contact trapping and micro-manipulation, but their ability to facilitate high-throughput volumetric microrheology of biological samples for mechanobiology research is limited by the precise alignment associated with the excitation and detection of individual bead oscillations. In contrast, radiation pressure from a low numerical aperture optical beam can apply transversely localized force over an extended depth range. We propose photonic force optical coherence elastography (PF-OCE ...
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    8. Hybrid Deep Learning on Single Wide-field Optical Coherence Tomography Scans Accurately Classifies Glaucoma Suspects

      Hybrid Deep Learning on Single Wide-field Optical Coherence Tomography Scans Accurately Classifies Glaucoma Suspects
      Purpose: Existing summary statistics based upon optical coherence tomographic (OCT) scans and/or visual fields (VFs) are suboptimal for distinguishing between healthy and glaucomatous eyes in the clinic. This study evaluates the extent to which a hybrid deep learning method (HDLM), combined with a single wide-field OCT protocol, can distinguish eyes previously classified as either healthy suspects or mild glaucoma. Methods: In total, 102 eyes from 102 patients, with or ...
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    9. Cornell University Receives NIH Grant for Development of Hybrid Adaptive Optics for Multimodal Microscopy Deep in The Mouse Brain

      Cornell University Receives NIH Grant for Development of Hybrid Adaptive Optics for Multimodal Microscopy Deep in The Mouse Brain
      ...rm our ability for large-scale, volumetric recording of mouse brain activity.

      Cornell University Receives a 2017 NIH Grant for $244,625 for Development of Hybrid Adaptive Optics for Multim...

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    10. Space Flight–Associated Neuro-ocular Syndrome

      Space Flight–Associated Neuro-ocular Syndrome
      New and unique physiologic and pathologic systemic and neuro-ocular responses have been documented in astronauts during and after long-duration space flight. Although the precise cause remains unknown, space flightassociated neuro-ocular syndrome (SANS) has been adopted as an appropriate descriptive term. The Space Medicine Operations Division of the US National Aeronautics and Space Administration (NASA) has documented the variable occurrence of SANS in astronauts returning from long-duration space flight on the ...
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    11. Measurement of dynamic cell-induced 3D displacement fields in vitro for traction force optical coherence microscopy

      Measurement of dynamic cell-induced 3D displacement fields in vitro for traction force optical coherence microscopy
      Traction force microscopy (TFM) is a method used to study the forces exerted by cells as they sense and interact with their environment. Cell forces play a role in processes that take place over a wide range of spatiotemporal scales, and so it is desirable that TFM makes use of imaging modalities that can effectively capture the dynamics associated with these processes. To date, confocal microscopy has been the imaging ...
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    12. Label-Free Imaging of Eosinophilic Esophagitis Mouse Models Using Optical Coherence Tomography

      Label-Free Imaging of Eosinophilic Esophagitis Mouse Models Using Optical Coherence Tomography
      Eosinophilic esophagitis (EoE) is an immune-mediated disorder characterized by esophageal inflammation and related structural changes causing symptoms such as feeding difficulties and food impaction. The pathophysiological mechanisms underlying EoE remain poorly understood. Preclinical studies using mouse models have been critical in comprehending human disease mechanisms and associated pathways. In this chapter, we describe an experimental method using a noninvasive label-free optical imaging technique, optical coherence tomography, to characterize the pathophysiological ...
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    13. Acoustic Radiation Force Optical Coherence Elastography : Localized Vs. Wide-Area Perturbation – A Comparison (Thesis)

      Acoustic Radiation Force Optical Coherence Elastography : Localized Vs. Wide-Area Perturbation – A Comparison (Thesis)
      Elastography is a method to image the biomechanical properties of tissues. The experimental setup has a 10 MHz ultrasound transducer (focal length of 5cm and a spot size of 0.3mm localized excitation and unfocused for wide-area excitation) which generates acoustic radiation force (ARF) to perturb the sample and the corresponding mechanical response is imaged with a spectral domain optical coherence tomography (SD-OCT) with a center wavelength of 800 nm ...
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  2. About Cornell University

    Cornell University

    Cornell University is a private university located in Ithaca, New York, U.S. Its two medical campuses are in New York City and Education City, Qatar. Cornell is a member of the Ivy League. Cornell was founded in 1865 by Ezra Cornell and Andrew Dickson White as a coeducational, non-sectarian institution where admission was offered irrespective of religion or race. Inaugurated shortly after the American Civil War, its founders intended that the new university would teach and make contributions in all fields of knowledge — from the classics to the sciences and from the theoretical to the applied. Also see Wiel Cornell Medical College.