Articles that mention University of Wisconsin -Optical Coherence Tomography News

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2. State-of-the-art in retinal optical coherence tomography image analysis
  
  Explore Home Oct 4 2019
  
  Optical coherence tomography (OCT) is an emerging imaging modality that has been widely used in the field of biomedical imaging. In the recent past, it has found uses as a diagnostic tool in dermatology, cardiology, and ophthalmology. In this paper we focus on its applications in the field of ophthalmology and retinal imaging. OCT is able to non-invasively produce cross-sectional volumetric images of the tissues which can be used for ...
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  Mentions: University of Wisconsin
3. Researchers See Around Corners To Detect Object Shapes
  
  Explore Homepage Jun 19 2019
  
  ...researchers are part of a larger collaborative team, which includes researchers from Stanford University, the University of Wisconsin Madison, the University of Zaragosa, Politecnico di Milano and the French-German Resea...
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  Mentions: University of Wisconsin University of Toronto University College London
4. University of Wisconsin-Madison Receives NIH Grant for The Interaction Between Vocal Fold Hydration and Vibratory Biomechanics
  
  Explore Optical Coherence Tomography News Jun 4 2019 Otolaryngology , Funding
  
  ...he change in stress distribution of the tissue with changes in fluid content.
  University of Wisconsin-Madison Receives a 2019 NIH Grant for $400,600 for The Interaction Between Vocal Fold ...
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  Mentions: University of Wisconsin National Institutes of Health
5. Photothermal Optical Coherence Tomography of Anti-Angiogenic Treatment in the Mouse Retina Using Gold Nanorods as Contrast Agents
  
  Explore TVST Journal May 23 2019 Ophthalmology
  
  Purpose : Optical coherence tomography (OCT) is widely used for ocular imaging in clinical and research settings. OCT natively provides structural information based on the reflectivity of the tissues it images. We demonstrate the utility of photothermal OCT (PTOCT) imaging of gold nanorods (GNR) in the mouse retina in vivo in the laser-induced choroidal neovascularization (LCNV) model to provide additional image contrast within the lesion. Methods : Wild-type C57BL/6 mice were ...
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  Mentions: University of Wisconsin Vanderbilt University Melissa C. Skala
6. Comparative Intraoperative Anterior Segment Optical Coherence Tomography Findings in Pediatric Patients with and without Glaucoma
  
  Explore ophthalmologyglaucoma.org May 11 2019 Ophthalmology
  
  Purpose To compare the angle structures intraoperatively using anterior segment optical coherence tomography (AS OCT) in children with and without glaucoma. Design Prospective comparative study, with single masked grader evaluating AS OCT images. Participants This study included a total of 44 eyes of 8 children with glaucoma and 14 children without glaucoma undergoing ophthalmic surgery under general anesthesia. The median age for the glaucoma group was 6 months (range 0 ...
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  Mentions: University of Wisconsin University of São Paulo
7. Assessing Retinal Structure in Patients with Parkinson Disease
  
  Explore OMICS Group May 9 2019 Neurology , Ophthalmology
  
  Objective : The retina is an extension of the central nervous system (CNS), and ocular symptoms can precede manifestations of CNS disorders. Given that several neurodegenerative conditions that affect the brain exhibit ocular symptoms, the retina may be an accessible biomarker to monitor disease progression. Dopamine, the key neurotransmitter related to Parkinsons disease (PD), is contained in amacrine and interplexiform cells, which reside in specific retinal layers. Understanding how loss of ...
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  Mentions: University of Wisconsin Joseph Carroll Pooja Godara
8. 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 ...
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  Mentions: University of Wisconsin Thorlabs Yale University
9. 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 ...
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  Mentions: University of Wisconsin New York Eye and Ear Infirmary Richard B. Rosen
10. 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 ...
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  Mentions: University of Wisconsin Joseph Carroll
11. 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 ...
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  Mentions: University of Wisconsin Vanderbilt University Melissa C. Skala
12. 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 ...
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  Mentions: University of Wisconsin Vanderbilt University Melissa C. Skala
13. 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 ...
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  Mentions: University of Wisconsin Joseph Carroll
14. 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...
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  Mentions: University of Wisconsin Lihong V. Wang Washington University in St. Louis
15. 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 ...
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  Mentions: University of Wisconsin Melissa C. Skala
16. 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 ...
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  Mentions: University of Wisconsin
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