Articles that mention University of Wisconsin -Optical Coherence Tomography News

University of Wisconsin

0 Comments Leave a Comment

1-15 of 98 1 2 3 4 5 6 7 »
1. Mentioned In 98 Articles
2. Redox imaging and optical coherence tomography of the respiratory ciliated epithelium
  
  Explore SPIE Digital Library Feb 3 2019 Pulmonology
  
  Optical coherence tomography (OCT) is an emerging technology for in vivo airway and lung imaging. However, OCT lacks sensitivity to the metabolic changes caused by inflammation, which drives chronic respiratory diseases such as asthma and chronic obstructive pulmonary disorder. Redox imaging (RI) is a label-free technique that uses the autofluorescence of the metabolic coenzymes NAD(P)H and flavin adenine dinucleotide (FAD) to probe cellular metabolism and could provide complimentary ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Thorlabs Yale University
3. Earliest Evidence of Preclinical Diabetic Retinopathy Revealed using OCT Angiography (OCTA) Perfused Capillary Density
  
  Explore American Journal of Ophthalmology Jan 25 2019 Ophthalmology
  
  Purpose To compare perfused capillary density (PCD) in diabetic patients and healthy controls using optical coherence tomography angiography (OCTA). Methods Forty controls, 36 diabetics without clinical retinopathy (NoDR), 38 with nonproliferative retinopathy (NPDR), and 38 with proliferative retinopathy (PDR) were imaged using SD-OCT. A 3x3 mm full-thickness parafoveal OCTA scan was obtained from each participant. Following manual delineation of the foveal avascular zone (FAZ), FAZ area, perimeter, and acircularity index ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin New York Eye and Ear Infirmary Richard B. Rosen
4. Variability of Foveal Avascular Zone Metrics Derived From Optical Coherence Tomography Angiography Images
  
  Explore TVST Journal Oct 6 2018 Ophthalmology
  
  Purpose : To characterize sources of inter- and intrasubject variability in quantitative foveal avascular zone (FAZ) metrics. Methods : Two 33-mm optical coherence tomography angiography scans (centered on the fovea) were acquired in both eyes of 175 subjects. An image of the superficial plexus was extracted from each scan and segmented twice by a single observer. Four quantitative FAZ morphology metrics (area, axis ratio, acircularity, major horizontal axis angle) were calculated, and ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Joseph Carroll
5. Imaging Melanin Distribution in the Zebrafish Retina Using Photothermal Optical Coherence Tomography
  
  Explore TVST Journal Sep 8 2018 Developmental Biology , Ophthalmology
  
  Purpose : To demonstrate and validate that photothermal optical coherence tomography (PT-OCT) can image melanin in the retinal pigment epithelium (RPE) and can observe light-driven melanosome translocation in the zebrafish retina. Methods : A commercial spectral domain OCT system was modified to perform both OCT and PT-OCT. Four adult tyrosinase-mosaic zebrafish with varying levels of melanin expression across their retinas were imaged, and the PT-OCT signal for pigmented and nonpigmented regions were ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Vanderbilt University Melissa C. Skala
6. Photothermal optical coherence tomography of indocyanine green in ex vivo eyes
  
  Explore OSA | OSA Publishing May 19 2018 Ophthalmology
  
  Indocyanine green (ICG) is routinely used during surgery to stain the inner limiting membrane (ILM) and provide contrast on white light surgical microscopy. While translation of optical coherence tomography (OCT) for intraoperative imaging during ophthalmic surgery has enhanced visualization, the ILM remains difficult to distinguish from underlying retinal structures and ICG does not provide additional OCT contrast. We present photothermal OCT (PT-OCT) for high-specificity detection of ICG on retinal OCT ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Vanderbilt University Melissa C. Skala
7. Repeatability and Reproducibility of In Vivo Cone Density Measurements in the Adult Zebrafish Retina
  
  Explore Home - Springer May 8 2018 Developmental Biology , Ophthalmology
  
  Zebrafish ( Danio rerio ) are widely used as an experimental model for a wide range of retinal diseases. Previously, optical coherence tomography (OCT) was introduced for quantitative analysis of the zebrafish cone photoreceptor cell mosaic; however no data exists on the intersession reproducibility or intrasession repeatability of such measurements. We imaged 14 wild-type (WT) fish three times each, with 48 h between each time point. En face images of the UV ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Joseph Carroll
8. Study shines light on alternative medical imaging techniques
  
  Explore PhysOrg.com Apr 27 2018
  
  ... say, the esophagus—where muscles control the flow of food into the stomach—precision is paramount. A team of University of Wisconsin-Madison biomedical engineers is working to hone new imaging techniques that could allo...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Lihong V. Wang Washington University in St. Louis
9. Quantifying optical properties with visible and near-infrared optical coherence tomography to visualize esophageal microwave ablation zones
  
  Explore OSA | OSA Publishing Mar 18 2018 Gastroenterology
  
  Microwave ablation is a minimally invasive image guided thermal therapy for cancer that can be adapted to endoscope use in the gastrointestinal (GI) tract. Microwave ablation in the GI tract requires precise control over the ablation zone that could be guided by high resolution imaging with quantitative contrast. Optical coherence tomography (OCT) provides ideal imaging resolution and allows for the quantification of tissue scattering properties to characterize ablated tissue. Visible ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Melissa C. Skala
10. Design and Implementation Guidelines for a Modular Spectral-Domain Optical Coherence Tomography Scanner
  
  Explore Hindawi Publishing Corporation Feb 17 2018
  
  In the past decades, spectral-domain optical coherence tomography (SD-OCT) has transformed into a widely popular imaging technology which is used in many research and clinical applications. Despite such fast growth in the field, the technology has not been readily accessible to many research laboratories either due to the cost or inflexibility of the commercially available systems or due to the lack of essential knowledge in the field of optics to ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin
11. Medical College of Wisconsin Receives NIH Grant for Assessing Photoreceptor Structure and Function in Normal and Diseased Retinae
  
  Explore Optical Coherence Tomography News Oct 4 2017 Ophthalmology , Funding
  
  Medical College of Wisconsin Receives a 2017 NIH Grant for $545,415 for Assessing Photoreceptor Structure and Function in Normal and Diseased Retinae. The principal investigator is Josepth Carroll. The program began in 2008 and ends in 2021. Below is a summary of the proposed work. Inherited retinal degenerations affect approximately 1 in 1,500 individuals in the US, and given the extreme genotypic and phenotypic heterogeneity, the prospect of ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin National Institutes of Health Joseph Carroll
12. INTRAOPERATIVE IMAGING OF RETAINED PERFLUOROCARBON LIQUID USING SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY
  
  Explore LWW Online Jun 27 2017 Ophthalmology
  
  Purpose: To report images of retained perfluorocarbon liquid (PFCL) on the surface of the retina obtained during an intraoperative use of hand-held spectral domain optical coherence tomography. Methods: A 54-year-old man underwent pars plana vitrectomy with injection of PFCL to repair retinal detachment. Postoperatively, visually significant PFCL droplets were found to be retained in the eye. During the surgical removal of PFCL, a hand-held spectral domain optical coherence tomography was ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Joseph Carroll
13. Assessing the Accuracy of Foveal Avascular Zone Measurements Using Optical Coherence Tomography Angiography: Segmentation and Scaling
  
  Explore TVST Journal Jun 17 2017 Ophthalmology
  
  Purpose : The foveal avascular zone (FAZ) is altered in numerous diseases. We assessed factors (axial length, segmentation method, age, sex) impacting FAZ measurements from optical coherence tomography (OCT) angiography images. Methods : We recruited 116 Caucasian subjects without ocular disease, and acquired two 3 3 mm AngioVue scans per each right eye (232 total scans). In images of the superficial plexus, the FAZ was segmented using the AngioVue semiautomatic nonflow measurement ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin Joseph Carroll
14. Blood capillaries and vessels segmentation in optical coherence tomography angiogram using fuzzy C-means and Curvelet transform
  
  Explore arxiv.org Jun 7 2017
  
  Blood capillaries density and vessels structure in vivo brain provide information about diseases and hemodynamic in the brain network. Capillary density in animal brain is one of the indexes that determines if it has diabetes. Capillary density in the animal brain subjected to diabetes diminishes over time. Variation in physical structure and diameter of the vessels as a function of time gives us information about hemodynamic in the brain network ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin
15. Simultaneous Fluorescein Angiography and Spectral Domain Optical Coherence Tomography Correlate Retinal Thickness Changes to Vascular Abnormalities in an In Vivo Mouse Model of Retinopathy of Prematurity
  
  Explore Hindawi Publishing Corporation May 13 2017 Ophthalmology
  
  Background . Retinopathy of prematurity (ROP) is a condition of abnormal retinal vascular development (RVD) in premature infants. Fluorescein angiography (FA) has depicted phases (early, mid, late, and mature) of RVD in oxygen-induced retinopathy (OIR) mice. We sought to establish the relationship between retinal structural and vascular changes using simultaneous FA and spectral domain optical coherence tomography (SD-OCT). Method . 63 mice were exposed to 77% oxygen at postnatal day 7 (P7 ...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin
16. The University of Wisconsin-Madison Receives Grant for Epidemiology of Age-Related Macular Degeneration and Other Retinal Diseases
  
  Explore Optical Coherence Tomography News May 9 2017 Ophthalmology , Funding
  
  ...of AMD independent of age, smoking status, and high-risk genetic markers.
  The University of Wisconsin-Madison Receives a 2017 NIH Grant for $768,348 for Epidemiology of Age-Related Macular...
  Read Full Article
  
  Comment
  
  Mentions: University of Wisconsin National Institutes of Health National Eye Institute
17. 1-15 of 98 1 2 3 4 5 6 7 »