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    1. Mentioned In 173 Articles

    2. Line-scanning SD-OCT for in-vivo, non-contact, volumetric, cellular resolution imaging of the human cornea and limbus

      Explore Optica Publishing Group Ophthalmology
      Line-scanning SD-OCT for in-vivo, non-contact, volumetric, cellular resolution imaging of the human cornea and limbus
      In-vivo , non-contact, volumetric imaging of the cellular and sub-cellular structure of the human cornea and limbus with optical coherence tomography (OCT) is challenging due to involuntary eye motion that introduces both motion artifacts and blur in the OCT images. Here we present the design of a line-scanning (LS) spectral-domain (SD) optical coherence tomography system that combines 2 3 1.7 m (x, y, z) resolution in biological tissue with an ...
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      Mentions: University of Waterloo Singapore Eye Research Institute Nanyang Technological University

    3. Flexible, high-resolution micro-optical coherence tomography endobronchial probe toward in vivo imaging of cilia

      Explore Optica Publishing Group Gastroenterology , Microscopy , Pulmonology , Probes
      Flexible, high-resolution micro-optical coherence tomography endobronchial probe toward in vivo imaging of cilia
      We report the design and fabrication of a flexible, longitudinally scanning high-resolution micro-optical coherence tomography (OCT) endobronchial probe, optimized for micro-anatomical imaging in airways. The 2.4 mm diameter and flexibility of the probe allows it to be inserted into the instrument channel of a standard bronchoscope, enabling real-time video guidance of probe placement. To generate a depth-of-focus enhancing annular beam, we utilized a new fabrication method, whereby a hollow ...
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      Mentions: Massachusetts General Hospital University of Alabama Harvard University

    4. CGNet-assisted Automatic Vessel Segmentation for Optical Coherence Tomography Angiography

      Explore Wiley Online Library
      CGNet-assisted Automatic Vessel Segmentation for Optical Coherence Tomography Angiography
      Automatic optical coherence tomography angiography (OCTA) vessel segmentation is of great significance to retinal disease diagnoses. Due to the complex vascular structure, however, various existing factors make the segmentation task challenging. This paper reports a novel end-to-end three-stage channel and position attention (CPA) module integrated graph reasoning convolutional neural network (CGNet) for retinal OCTA vessel segmentation. Specifically, in the coarse stage, both CPA and graph reasoning network (GRN) modules are ...
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      Mentions: Nanyang Technological University

    5. The New Era of Retinal Imaging in Hypertensive Patients

      Explore LWW Online Ophthalmology
      The New Era of Retinal Imaging in Hypertensive Patients
      Structural and functional alterations in the microcirculation by systemic hypertension can cause significant organ damage at the eye, heart, brain, and kidneys. As the retina is the only tissue in the body that allows direct imaging of small vessels, the relationship of hypertensive retinopathy signs with development of disease states in other organs have been extensively studied; large-scale epidemiological studies using fundus photography and advanced semi-automated analysis software have reported ...
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      Mentions: Medical University of Vienna Nanyang Technological University National University of Singapore

    6. A multi-regression approach to improve optical coherence tomography diagnostic accuracy in multiple sclerosis patients without previous optic neuritis

      Explore ScienceDirect Ophthalmology
      A multi-regression approach to improve optical coherence tomography diagnostic accuracy in multiple sclerosis patients without previous optic neuritis
      Background: Optical coherence tomography (OCT) is a retinal imaging system that may improve the diagnosis of multiple sclerosis (MS) persons, but the evidence is currently equivocal. To assess whether compensating the peripapillary retinal nerve fiber layer (pRNFL) thickness for ocular anatomical features as well as the combination with macular layers can improve the capability of OCT in differentiating non-optic neuritis eyes of relapsing-remitting MS patients from healthy controls. Methods: 74 ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    7. A multi-regression framework to improve diagnostic ability of optical coherence tomography retinal biomarkers to discriminate mild cognitive impairment and Alzheimer’s disease

      Explore Alzheimer's Research & Therapy Neurology , Ophthalmology
      A multi-regression framework to improve diagnostic ability of optical coherence tomography retinal biomarkers to discriminate mild cognitive impairment and Alzheimer’s disease
      Background Diagnostic performance of optical coherence tomography (OCT) to detect Alzheimers disease (AD) and mild cognitive impairment (MCI) remains limited. We assessed whether compensating the circumpapillary retinal nerve fiber layer (cpRNFL) thickness for multiple demographic and anatomical factors as well as the combination of macular layers improves the detection of MCI and AD. Methods This cross-sectional study of 62 AD ( n =92 eyes), 108 MCI ( n =158 eyes), and 55 ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    8. Anterior Segment Optical Coherence Tomography Angiography Following Trabecular Bypass Minimally Invasive Glaucoma Surgery

      Explore Frontiers Ophthalmology
      Anterior Segment Optical Coherence Tomography Angiography Following Trabecular Bypass Minimally Invasive Glaucoma Surgery
      Objective: To assess anterior segment optical coherence tomography angiography (AS-OCTA) imaging of the episcleral vessels before and after trabecular bypass minimally invasive glaucoma surgery (MIGS). Design: A prospective, clinical, single-centre, single-arm pilot feasibility study conducted at National University Hospital, Singapore. Subjects: Patients with primary glaucomatous optic neuropathy undergoing Hydrus Microstent (Ivantis Inc., Irvine, CA, USA) implantation, who require at least one intra-ocular pressure-lowering medication. One or two eyes per patient ...
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      Mentions: Nidek Medical University of Vienna Singapore Eye Research Institute

    9. A multi-regression framework to improve diagnostic ability of optical coherence tomography retinal biomarkers to discriminate mild cognitive impairment and Alzheimer’s disease

      Explore Alzheimer's Research & Therapy Neurology , Ophthalmology
      A multi-regression framework to improve diagnostic ability of optical coherence tomography retinal biomarkers to discriminate mild cognitive impairment and Alzheimer’s disease
      Background: Diagnostic performance of optical coherence tomography (OCT) to detect Alzheimer's disease (AD) and mild cognitive impairment (MCI) remains limited. We assessed whether compensating the circumpapillary retinal nerve fiber layer (cpRNFL) thickness for multiple demographic and anatomical factors as well as the combination of macular layers improves the detection of MCI and AD. Methods: This cross-sectional study of 62 AD (n = 92 eyes), 108 MCI (n = 158 eyes), and ...
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      Mentions: Medical University of Vienna Nanyang Technological University National University of Singapore

    10. Interferometric imaging of thermal expansion for temperature control in retinal laser therapy

      Explore OSA | OSA Publishing
      Interferometric imaging of thermal expansion for temperature control in retinal laser therapy
      Precise control of the temperature rise is a prerequisite for proper photothermal therapy. In retinal laser therapy, the heat deposition is primarily governed by the melanin concentration, which can significantly vary across the retina and from patient to patient. In this work, we present a method for determining the optical and thermal properties of layered materials, directly applicable to the retina, using low-energy laser heating and phase-resolved optical coherence tomography ...
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      Mentions: Stanford University Nanyang Technological University

    11. Subsurface detection of hair follicles in alopecia areata using optical coherence tomography

      Explore Wiley Online Library Dermatology
      Subsurface detection of hair follicles in alopecia areata using optical coherence tomography
      Dear Editors, Alopecia areata (AA) is an autoimmune skin disorder that affects any hair-bearing areas and results in localized nonscarring hair loss. It can occur in individuals at any age regardless of ethnicity with a lifetime risk of 12%. 1 The loss of hair is caused by perifollicular inflammation, which is associated with cytokines and chemokines released by T cells. 2 , 3 Although spontaneous regrowth is possible in 80% of ...
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      Mentions: Nanyang Technological University

    12. Multi-task learning approach for volumetric segmentation and reconstruction in 3D OCT images

      Explore OSA | OSA Publishing Ophthalmology
      Multi-task learning approach for volumetric segmentation and reconstruction in 3D OCT images
      The choroid is the vascular layer of the eye that supplies photoreceptors with oxygen. Changes in the choroid are associated with many pathologies including myopia where the choroid progressively thins due to axial elongation. To quantize these changes, there is a need to automatically and accurately segment the choroidal layer from optical coherence tomography (OCT) images. In this paper, we propose a multi-task learning approach to segment the choroid from ...
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      Mentions: Medical University of Vienna Singapore Eye Research Institute Nanyang Technological University

    14. Combining OCT and OCTA for Focal Structure-Function Modeling in Early Primary Open-Angle Glaucoma

      Explore IOVS Journal Ophthalmology
      Combining OCT and OCTA for Focal Structure-Function Modeling in Early Primary Open-Angle Glaucoma
      Purpose: To investigate modeling of the focal visual field (VF) loss by combining structural measurements and vascular measurements in eyes with early primary open-angle glaucoma (POAG). Methods: In this cross-sectional study, subjects with early glaucoma (VF mean deviation, -6 dB) underwent optical coherence tomography (OCT) imaging, optical coherence tomography angiography (OCTA) imaging, and Humphrey 24-2 VF tests. Capillary perfusion densities (CPDs) were calculated after the removal of large vessels in ...
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      Mentions: University College London Medical University of Vienna Singapore Eye Research Institute

    15. Semi-automated quantitative analysis of the middle limiting membrane in tubercular serpiginous-like choroiditis using swept-source optical coherence tomography

      Explore Nature Publishing Group Ophthalmology
      Semi-automated quantitative analysis of the middle limiting membrane in tubercular serpiginous-like choroiditis using swept-source optical coherence tomography
      o analyze the longitudinal changes in the outer plexiform layer (OPL) in patients with tubercular serpiginous-like choroiditis (TB SLC) and compare it to the healthy control population. Clinical and imaging data of subjects with TB SLC (minimum 6-month follow-up) and healthy control subjects were reviewed. Optical coherence tomography (OCT) imaging obtained using swept-source device (DRI Triton, Topcon, Japan) from three visits (baseline, 3 months, and 6 months) were analyzed. Three ...
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      Mentions: Cleveland Clinic Topcon Medical Systems Nanyang Technological University
    17. 1-15 of 173 1 2 3 4 ... 10 11 12 »
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  4. About Nanyang Technological University

    Nanyang Technological University

    Nanyang Technological University (NTU is an internationally reputed research-intensive tertiary institution. Our broad-based education covers science and technology, business and the arts, entrepreneurial and leadership skills to prepare students for the global working world.

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