Articles that mention NYU Langone Medical Center -Optical Coherence Tomography News

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1. Mentioned In 32 Articles
2. Attention-guided 3D-CNN Framework for Glaucoma Detection and Structural-Functional Association using Volumetric Images
  
  Explore IEEE Xplore Aug 7 2020 Ophthalmology
  
  The direct analysis of 3D Optical Coherence Tomography (OCT) volumes enables deep learning models (DL) to learn spatial structural information and discover new bio-markers that are relevant to glaucoma. Downsampling 3D input volumes is the state-of-art solution to accommodate for the limited number of training volumes as well as the available computing resources. However, this limits the network's ability to learn from small retinal structures in OCT volumes. In ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
3. Optical coherence tomography: A useful tool for identifying subclinical optic neuropathy in diagnosing multiple sclerosis
  
  Explore Neurology Jul 30 2020 Neurology , Ophthalmology
  
  Care of patients with multiple sclerosis (MS) has evolved in the last decade to shorten the time to confirm the diagnosis of clinically definite MS and to start disease-modifying drugs as soon as possible to decrease permanent disability and the risk of progressive disease. Such trends have been achieved by improving our understanding of the role of paraclinical tests such as the presence of oligoclonal bands on CSF examination, visual ...
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  Mentions: Stanford University NYU Langone Medical Center
4. Improved Denoising of Optical Coherence Tomography via Repeated Acquisitions and Unsupervised Deep Learning
  
  Explore IOVS Journal Jul 27 2020 Ophthalmology
  
  Purpose : Optical Coherence Tomography (OCT) is widely used, yet its interpretation is confounded by strong speckle noise. Previous denoising methods make strong assumptions on noise characteristics and struggle to retain fine structure. We present a data-driven registration and denoising method which vastly improves image fidelity while requiring only repeated noisy acquisitions of individual subjects. Methods : Noise2Noise is an unsupervised denoising approach for repeatedly acquired noisy images (Lehtinen, ICML , 2018). By ...
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  Mentions: Joel S. Schuman Hiroshi Ishikawa NYU Langone Medical Center
5. Dueling Deep Q-Network for Unsupervised Inter-frame Eye Movement Correction in Optical Coherence Tomography Volumes
  
  Explore arxiv.org Jul 12 2020 Ophthalmology
  
  In optical coherence tomography (OCT) volumes of retina, the sequential acquisition of the individual slices makes this modality prone to motion artifacts, misalignments between adjacent slices being the most noticeable. Any distortion in OCT volumes can bias structural analysis and influence the outcome of longitudinal studies. On the other hand, presence of speckle noise that is characteristic of this imaging modality, leads to inaccuracies when traditional registration techniques are employed ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
6. ASSESSING THE ABILITY OF PREOPERATIVE QUANTITATIVE SPECTRAL-DOMAIN OPTICAL COHERENCE TOMOGRAPHY CHARACTERISTICS TO PREDICT VISUAL OUTCOME IN IDIOPATHIC MACULAR HOLE SURGERY
  
  Explore LWW Online Apr 12 2020 Ophthalmology
  
  Purpose: To determine which spectral domain optical coherence tomography biomarkers of idiopathic macular hole (MH) correlate with the postoperative best-corrected visual acuity (BCVA) in anatomically closed MH. Methods: Retrospective analysis of spectral domain optical coherence tomography scans of 44 patients presenting with MH followed for a mean of 17 months. Widths of MH aperture, base, and ellipsoid zone disruption were calculated from presenting foveal spectral domain optical coherence tomography B-scans ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
7. Retinal blood flow reduction in normal-tension glaucoma with single-hemifield damage by Doppler optical coherence tomography
  
  Explore BJO Online Mar 31 2020 Ophthalmology
  
  Aims To evaluate the associations between retinal blood flow (RBF) and optical coherence tomography (OCT) structural measurements in normal-tension glaucoma (NTG) eyes with single-hemifield visual field (VF) damage by the Doppler OCT. Methods The Doppler OCT was used to measure temporal artery (TA) RBF and temporal vein (TV) RBF. Retinal nerve fibre layer thickness (RNFLT) was measured by spectral-domain OCT. Results Forty-three consecutive eyes of 43 patients with NTG with ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
8. In Vivo Imaging of Schlemm's Canal and Limbal Vascular Network in Mouse Using Visible-Light OCT
  
  Explore IOVS Journal Feb 21 2020 Ophthalmology
  
  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
9. Macroaneurysms Associated With Congenital Retinal Macrovessels
  
  Explore LWW Online Dec 17 2019 Ophthalmology
  
  Purpose: Congenital retinal macrovessels are large aberrant retinal blood vessels that cross the horizontal raphe and can traverse the central macula. Using multimodal imaging and optical coherence tomography angiography, we describe 2 cases of congenital retinal macrovessel associated with macroaneurysms. Methods: Two patients presented for evaluation and were found to have congenital retinal macrovessels associated with macroaneurysms. Color photography, optical coherence tomography, fundus autofluorescence fluorescein angiography, and optical coherence tomography ...
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  Mentions: Columbia University Joel S. Schuman University of São Paulo
10. Estimating Visual Field Mean Deviation using Optical Coherence Tomographic Nerve Fiber Layer Measurements in Glaucoma Patients
  
  Explore Nature Publishing Group Dec 10 2019 Ophthalmology
  
  To construct an optical coherence tomography (OCT) nerve fiber layer (NFL) parameter that has maximal correlation and agreement with visual field (VF) mean deviation (MD). The NFL_MD parameter in dB scale was calculated from the peripapillary NFL thickness profile nonlinear transformation and VF area-weighted averaging. From the Advanced Imaging for Glaucoma study, 245 normal, 420 pre-perimetric glaucoma (PPG), and 289 perimetric glaucoma (PG) eyes were selected. NFL_MD had significantly higher ...
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  Mentions: David Huang Joel S. Schuman Oregon Health & Science University
11. 3D-CNN for Glaucoma Detection Using Optical Coherence Tomography
  
  Explore Home - Springer Oct 15 2019 Ophthalmology
  
  The large size of raw 3D optical coherence tomography (OCT) volumes poses challenges for deep learning methods as it cannot be accommodated on a single GPU in its original resolution. The direct analysis of these volumes however, provides advantages such as circumventing the need for the segmentation of retinal structures. Previously, a deep learning (DL) approach was proposed for the detection of glaucoma directly from 3D OCT volumes, where the ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
12. New York University School of Medicine Receives NIH Grant or Novel Glaucoma Diagnostics for Structure and Function
  
  Explore Optical Coherence Tomography News Oct 1 2019 Ophthalmology , Funding
  
  New York University School of Medicine Receives a 2019 NIH Grant for $715,489 for Novel Glaucoma Diagnoxtics for Structure and Function. The principal investigator is Joel Schuman. Below is a summary of the proposed work. Glaucoma is a leading cause of vision morbidity and blindness worldwide. Early disease detection and sensitive monitoring of progression are crucial to allow timely treatment for preservation of vision. The introduction of ocular imaging ...
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  Mentions: National Institutes of Health Joel S. Schuman NYU Langone Medical Center
13. Speckle reduction in visible-light optical coherence tomography using scan modulation
  
  Explore SPIE Digital Library Sep 4 2019 Ophthalmology
  
  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
14. Inference of visual field test performance from OCT volumes using deep learning
  
  Explore arxiv.org Aug 10 2019 Ophthalmology
  
  Visual field tests (VFT) are pivotal for glaucoma diagnosis and conducted regularly to monitor disease progression. Here we address the question to what degree aggregate VFT measurements such as Visual Field Index (VFI) and Mean Deviation (MD) can be inferred from Optical Coherence Tomography (OCT) scans of the Optic Nerve Head (ONH) or the macula. Accurate inference of VFT measurements from OCT could reduce examination time and cost. We propose ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
15. A feature agnostic approach for glaucoma detection in OCT volumes
  
  Explore Journals | PLOS Jul 1 2019 Ophthalmology
  
  Optical coherence tomography (OCT) based measurements of retinal layer thickness, such as the retinal nerve fibre layer (RNFL) and the ganglion cell with inner plexiform layer (GCIPL) are commonly employed for the diagnosis and monitoring of glaucoma. Previously, machine learning techniques have relied on segmentation-based imaging features such as the peripapillary RNFL thickness and the cup-to-disc ratio. Here, we propose a deep learning technique that classifies eyes as healthy or ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
16. Designing visible-light optical coherence tomography towards clinics
  
  Explore Home May 28 2019
  
  Background: The capabilities of visible-light optical coherence tomography (vis-OCT) in noninvasive anatomical and functional retinal imaging have been demonstrated by multiple groups in both rodents and healthy human subjects. Translating laboratory prototypes to an integrated clinical-environment-friendly system is required to explore the full potential of vis-OCT in disease management. Methods: We developed and optimized a portable vis-OCT system for human retinal imaging in clinical settings. We acquired raster- and circular-scan ...
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  Mentions: Joel S. Schuman Gadi Wollstein Hiroshi Ishikawa
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