Articles that mention University of Maryland -Optical Coherence Tomography News

University of Maryland

0 Comments Leave a Comment

1-15 of 119 1 2 3 4 5 6 7 8 »
1. Mentioned In 119 Articles
2. Repeatability and reliability of semi-automated anterior segment-optical coherence tomography imaging compared to manual analysis in normal and keratoconus eyes
  
  Explore assets.researchsquare.com Aug 15 2022 Ophthalmology
  
  Purpose: To assess the repeatability and reliability of semi-automated EyeMark Python program measurements compared to manual ImageJ image processing of anterior segment-optical coherence tomography (AS-OCT) structures in healthy and keratoconus eyes. Methods: Heidelberg AS-OCT was used to image 25 eyes from 14 healthy subjects and 25 eyes from 15 subjects with keratoconus between the ages of 20 and 80 years, collected prospectively, in this observational case-control study. Visual axis scan ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland
3. Postdoctoral Fellow in Adaptive Optics Optical Coherence Tomography in Multiple Sclerosis at University of Maryland
  
  Explore Optical Coherence Tomography News May 16 2022 Jobs & Studentships
  
  ...T and SLO. The candidate will become an active member of the neuro-imaging lab of Dr. Daniel Harrison at the University of Maryland, Baltimore, in addition to working directly in the AO imaging laboratory at the FDA cam...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland FDA
4. Intravascular imaging and histological correlates of medial and intimal calcification in peripheral artery disease
  
  Explore eurointervention.pcronline.com Oct 6 2021 Cardiology
  
  Background: In peripheral artery disease, two different types of calcification are frequently observed, i.e., medial and intimal calcification. Aims: The aim of this study was to determine the ability of intravascular ultrasound (IVUS) imaging and optical frequency domain imaging (OFDI) to detect medial and intimal calcification in human peripheral arteries. Methods: We performed ex vivo intravascular imaging of cadaveric human peripheral arteries with calcifications. IVUS and OFDI images were ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland
5. Indoor localization of hand-held OCT probe using visual odometry and real-time segmentation using deep learning
  
  Explore IEEE Xplore Oct 3 2021
  
  Objective: Optical coherence tomography (OCT) is an established medical imaging modality that has found widespread use due to its ability to visualize tissue structures at a high resolution. Currently, OCT hand-held imaging probes lack positional information, making it difficult or even impossible to link a specific image to the location it was originally obtained. In this study, we propose a camera-based localization method to track and record the scanner position ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland The Ohio State University
6. Inter-rater Reliability and Repeatability of Manual Anterior Segment Optical Coherence Tomography Image Grading in Keratoconus
  
  Explore LWW Online Jul 24 2021 Ophthalmology
  
  Objectives: To determine the repeatability of corneal measurements from anterior segment optical coherence tomography (AS-OCT) images using ImageJ software in healthy eyes compared with eyes with keratoconus. Methods: Anterior segment OCT images of 25 eyes from 14 healthy subjects and 25 eyes from 15 subjects with keratoconus between the ages of 20 and 80 years were evaluated. Two trained observers used ImageJ to measure the central corneal cross-sectional area and ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland
7. Quantitative analysis of vascular changes during photoimmunotherapy using speckle variance optical coherence tomography (SV-OCT)
  
  Explore OSA | OSA Publishing Mar 6 2021
  
  Near-infrared (NIR) photoimmunotherapy (NIR-PIT) is an emerging cancer therapy based on a monoclonal antibody and phthalocyanine dye conjugate. Direct tumor necrosis and immunogenic cell death occur during NIR irradiation. However, the alteration of tumor blood vessels and blood volume inside the blood vessels induced by the NIR-PIT process is still unknown. In our study, a speckle variance (SV) algorithm combined with optical coherence tomography (OCT) technology was applied to monitor ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland Fujian Normal University
8. Past, present and future role of retinal imaging in neurodegenerative disease
  
  Explore ScienceDirect Jan 20 2021 Neurology , Ophthalmology
  
  Retinal imaging technology is rapidly advancing and can provide ever-increasing amounts of information about the structure, function and molecular composition of retinal tissue in humans in vivo . Most importantly, this information can be obtained rapidly, non-invasively and in many cases using Food and Drug Administration-approved devices that are commercially available. Technologies such as optical coherence tomography have dramatically changed our understanding of retinal disease and in many cases have significantly ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland Massachusetts General Hospital University of Southern California
9. Direct laser writing of a titanium dioxide-laden retinal cone phantom for adaptive optics-optical coherence tomography
  
  Explore OSA | OSA Publishing Oct 10 2020 Ophthalmology
  
  The spatial resolution of adaptive optics-optical coherence tomography (AO-OCT) enables visualization of retinal components ( e.g ., photoreceptors), which can advance clinical diagnosis of ocular diseases. Currently, however, variability in AO-OCT system performance suggests a need for standardized physical models, or phantoms, that replicate the opto-structural properties of retinal components. Here we employ direct laser writing a two-photon polymerization-based additive manufacturing technology using a light scattering titanium (IV) dioxide nanoparticle-laden photomaterial ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland FDA
10. University of Maryland Receives NIH Grant for In Vivo Assessment of Meningeal Inflammation and its Clinical Impact in Multiple Sclerosis by 7 Tesla MRI
  
  Explore Optical Coherence Tomography News Aug 19 2020 Neurology , Funding
  
  ...in whom such treatments would be justified and to monitor treatment response.
  University of Maryland Receives a 2020 NIH Grant for $609,639 for In Vivo Assessment of Meningeal Inflammation...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland National Institutes of Health
11. A review of imaging modalities for detecting early keratoconus
  
  Explore Nature Publishing Group Jul 16 2020 Ophthalmology
  
  Objectives Early identification of keratoconus is imperative for preventing iatrogenic corneal ectasia and allowing for early corneal collagen cross-linking treatments to potentially halt progression and decrease transplant burden. However, early diagnosis of keratoconus is currently a diagnostic challenge as there is no uniform screening criteria. We performed a review of the current literature to assess imaging modalities that can be used to help identify subclinical keratoconus. Methods A Pubmed database ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland
12. Association of Intimal Neovessels Noted by Optical Coherence Tomography with Cardiac Allograft ...
  
  Explore Cureus Mar 29 2020 Cardiology
  
  Background Cardiac allograft vasculopathy (CAV) is a leading cause of graft failure in cardiac transplant recipients. Progression of intimal thickening noted during routine surveillance intracoronary imaging is associated with the development of CAV. However, mechanisms of CAV development are poorly understood and targets for therapy modification remain elusive. We investigated the association of neovessels (INs) within the intima, noted by optical coherence tomography (OCT) during routine CAV surveillance imaging, with ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland Abbott
13. Multimodal quantitative optical elastography of the crystalline lens with optical coherence elastography and Brillouin microscopy
  
  Explore OSA | OSA Publishing Mar 22 2020 Ophthalmology
  
  Assessing the biomechanical properties of the crystalline lens can provide crucial information for diagnosing disease and guiding precision therapeutic interventions. Existing noninvasive methods have been limited to global measurements. Here, we demonstrate the quantitative assessment of the elasticity of crystalline lens with a multimodal optical elastography technique, which combines dynamic wave-based optical coherence elastography (OCE) and Brillouin microscopy to overcome the drawbacks of individual modalities. OCE can provide direct measurements ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland Baylor College of Medicine University of Houston
14. Demonstration of Optical Coherence Tomography Guided Big Bubble Technique for Deep Anterior Lamellar Keratoplasty (DALK)
  
  Explore MDPI Open Access Journals Platform Jan 12 2020 Ophthalmology
  
  Deep anterior lamellar keratoplasty (DALK) is a highly challenging procedure for cornea transplant that involves removing the corneal layers above Descemets membrane (DM). This is achieved by a big bubble technique where a needle is inserted into the stroma of the cornea down to DM and the injection of either air or liquid. DALK has important advantages over penetrating keratoplasty (PK) including lower rejection rate, less endothelial cell loss, and ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland Johns Hopkins University
15. Post-doctoral Adaptive Optics Research Fellow at U.S. Food and Drug Administration
  
  Explore Optical Coherence Tomography News Apr 9 2019 Jobs & Studentships
  
  ...mpact on public health. The candidate will have an opportunity to work with several collaborators at NIH NEI, University of Maryland, and other local clinical and academic sites to develop tools and approaches to acceler...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland FDA
16. 3-D printed photoreceptor phantoms for evaluating lateral resolution of adaptive optics imaging systems
  
  Explore OSA | OSA Publishing Apr 2 2019
  
  With adaptive optics (AO), optical coherence tomography and scanning laser ophthalmoscopy imaging systems can resolve individual photoreceptor cells in living eyes, due to enhanced lateral spatial resolution. However, no standard test method exists for experimentally quantifying this parameter in ophthalmic AO imagers. Here, we present three-dimensional (3-D) printed phantoms, which enable the measurement of lateral resolution in an anatomically relevant manner. We used two-photon polymerization to fabricate two phantoms, which ...
  Read Full Article
  
  Comment
  
  Mentions: University of Maryland National Institutes of Health FDA
17. 1-15 of 119 1 2 3 4 5 6 7 8 »