Articles that mention Duke University -Optical Coherence Tomography News

Duke University

0 Comments Leave a Comment

1-15 of 475 1 2 3 4 ... 30 31 32 »
1. Mentioned In 475 Articles
2. Feature of the Week 06/23/2018: Real-time visualization and interaction with static and live optical coherence tomography volumes in immersive virtual reality
  
  Explore Optical Coherence Tomography News 22 hours, 31 min ago
  
  Virtual reality (VR) head-mounted displays are an attractive technology for viewing intrasurgical optical coherence tomography (OCT) volumes because they liberate surgeons from microscope oculars. We demonstrate real-time, interactive viewing of OCT volumes in a commercial HTC Vive immersive VR system using previously reported ray casting techniques. Furthermore, we show interactive manipulation and sectioning of volumes using handheld controllers and guidance of mock surgical procedures in porcine eyes exclusively within VR ...
  Read Full Article
  
  Comment
  
  Mentions: Joseph A. Izatt Duke University Oscar Carrasco-Zevallos
3. Real-time visualization and interaction with static and live optical coherence tomography volumes in immersive virtual reality
  
  Explore OSA | OSA Publishing Jun 5 2018
  
  Virtual reality (VR) head-mounted displays are an attractive technology for viewing intrasurgical optical coherence tomography (OCT) volumes because they liberate surgeons from microscope oculars. We demonstrate real-time, interactive viewing of OCT volumes in a commercial HTC Vive immersive VR system using previously reported ray casting techniques. Furthermore, we show interactive manipulation and sectioning of volumes using handheld controllers and guidance of mock surgical procedures in porcine eyes exclusively within VR ...
  Read Full Article
  
  Comment
  
  Mentions: Joseph A. Izatt Duke University Oscar Carrasco-Zevallos
4. Classification of healthy and diseased retina using SD-OCT imaging and Random Forest algorithm
  
  Explore Journals | PLOS Jun 4 2018 Ophthalmology
  
  ...niversity [17], Centre for Eye Research Australia (CERA), New York University (NYU) and Tian et al. [18]. The Duke University provided 45 subjects consisting of 15 normal, 15 AMD and 15 DME. CERA provided 20 Normal and 1...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Joel S. Schuman Singapore Eye Research Institute
5. Development of an efficient algorithm for the detection of macular edema from optical coherence tomography images
  
  Explore Home - Springer Jun 2 2018 Ophthalmology
  
  ...ults The proposed method was tested with the standard dataset collected from the Department of Ophthalmology, Duke University, and achieved a high accuracy rate of 99.4975%, sensitivity of 100%, and specificity of 99% fo...
  Read Full Article
  
  Comment
  
  Mentions: Duke University
6. Clinical Use of Optical Coherence Tomography Angiography in Diabetic Retinopathy Treatment Ready for Showtime?
  
  Explore The JAMA Network May 29 2018 Ophthalmology
  
  Diabetic macular edema (DME) and proliferative diabetic retinopathy (PDR) are the 2 advanced stages of diabetic retinopathy (DR) that are the main causes for visual loss in patients with diabetes. Both DME and PDR can be readily diagnosed with clinical examination and, increasingly, by the noninvasive use of optical coherence tomography. However, another, less commonly recognized cause of visual loss in patients with diabetes is diabetic macular ischemia (DMI) in ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Singapore Eye Research Institute National University of Singapore
7. Deep longitudinal transfer learning-based automatic segmentation of photoreceptor ellipsoid zone defects on optical coherence tomography images of macular telangiectasia type 2
  
  Explore OSA | OSA Publishing May 22 2018 Ophthalmology
  
  Photoreceptor ellipsoid zone (EZ) defects visible on optical coherence tomography (OCT) are important imaging biomarkers for the onset and progression of macular diseases. As such, accurate quantification of EZ defects is paramount to monitor disease progression and treatment efficacy over time. We developed and trained a novel deep learning-based method called Deep OCT Atrophy Detection (DOCTAD) to automatically segment EZ defect areas by classifying 3-dimensional A-scan clusters as normal or ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Sina Farsiu
8. Feature issue of Biomedical Optics Express: Progress in Multimodal En-Face Imaging
  
  Explore OSA | OSA Publishing Apr 27 2018
  
  ...timodal En-Face Imaging. Feature Editors Adrian Podoleanu, University of Kent, UK (Lead Editor) Joseph Izatt, Duke University, USA Bruno Lumbroso, Centro Oftalmologico Mediterraneo, Italy Michael Pircher, Medical Univers...
  Read Full Article
  
  Comment
  
  Mentions: Joseph A. Izatt Duke University Adrian G. Podoleanu
9. Volumetric Measurement of Subretinal Blebs Using Microscope-Integrated Optical Coherence Tomography
  
  Explore TVST Journal Apr 16 2018 Ophthalmology
  
  Purpose : We advance studies of subretinal treatments by developing a microscope-integrated optical coherence tomography (MIOCT) image-based method for measuring the volume of therapeutics delivered into the subretinal space. Methods : A MIOCT image-based volume measurement method was developed and assessed for accuracy and reproducibility by imaging an object of known size in model eyes. This method then was applied to subretinal blebs created by injection of diluted triamcinolone. Bleb volumes obtained ...
  Read Full Article
  
  Comment
  
  Mentions: Joseph A. Izatt Duke University Cynthia A. Toth
10. PERIVASCULAR THICKENING ON OPTICAL COHERENCE TOMOGRAPHY AS A MARKER OF INFLAMMATION IN BIRDSHOT RETINOCHOROIDITIS
  
  Explore LWW Online Mar 20 2018 Ophthalmology
  
  Purpose: In this study, we hypothesized that thickening along the major arcade vessels is a noninvasive marker of inflammation in eyes with birdshot retinochoroiditis (BRC). Methods: In this single-center retrospective study, patients with BRC were identified. Perivascular thickening was categorized as mild, moderate, or severe, based on a set of standard reference retinal thickness maps derived from representative spectral domain optical coherence tomography volume scans. The assigned perivascular severity thickness ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University
11. Rapid regression of retinal neovascularization following intravitreal bevacizumab in branch retinal vein occlusion imaged by optical coherence tomography angiography
  
  Explore Indian Journal of Ophthalmology (IJO) Mar 1 2018 Ophthalmology
  
  Retinal neovascularization developing secondary to ischemic branch retinal vein occlusion (BRVO) is conventionally treated with sector panretinal photocoagulation (PRP). Elevated levels of the vascular endothelial growth factor (VEGF) play an important role in the development of these new vessels [1] and thus administration of anti-VEGF agents has been reported to be of therapeutic use as well. [2] , [3] We present a case of BRVO in a 55-year-old female, previously treated ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University
12. Anterior chamber blood cell differentiation using spectroscopic optical coherence tomography
  
  Explore SPIE Digital Library Feb 27 2018
  
  There is great clinical importance in identifying cellular responses in the anterior chamber (AC) which can indicate signs of hyphema (an accumulation of red blood cells (RBCs)) or aberrant intraocular inflammation (an accumulation of white blood cells (WBCs)). These responses are difficult to diagnose and require specialized equipment such as ophthalmic microscopes and specialists trained in examining the eye. In this work, we applied spectroscopic OCT to differentiate between RBCs ...
  Read Full Article
  
  Comment
  
  Mentions: Joseph A. Izatt Duke University Anthony N. Kuo
13. IDENTIFICATION OF POSTERIOR SEGMENT PATHOLOGY WITH EN FACE RETINAL IMAGING USING MULTICOLOR CONFOCAL SCANNING LASER OPHTHALMOSCOPY
  
  Explore LWW Online Feb 27 2018 Ophthalmology
  
  Purpose: To assess posterior segment findings on multicolor confocal scanning laser ophthalmoscopy by correlation with spectral domain optical coherence tomography (SD-OCT) and to quantify agreement between these imaging modalities. Methods: Retrospective review of 159 eyes of 96 consecutive patients who underwent concurrent imaging with multicolor confocal scanning laser ophthalmoscopy and SD-OCT. Positive percent agreement and negative percent agreement were calculated for each finding identified on infrared, green, blue, and multicolor ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Sanjay G. Asrani
14. Full depth measurement of tenofovir transport in rectal mucosa using confocal Raman spectroscopy and optical coherence tomography
  
  Explore Home - Springer Feb 27 2018 Gastroenterology
  
  The prophylactic activity of antiretroviral drugs applied as microbicides against sexually transmitted HIV is dependent upon their concentrations in infectable host cells. Within mucosal sites of infection (e.g., vaginal and rectal mucosa), those cells exist primarily in the stromal layer of the tissue. Traditional pharmacokinetic studies of these drugs have been challenged by poor temporal and spatial specificity. Newer techniques to measure drug concentrations, involving Raman spectroscopy, have been ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Jason R. Maher
15. Design and implementation of a low-cost, portable OCT system
  
  Explore OSA | OSA Publishing Feb 22 2018
  
  Optical coherence tomography (OCT) is a widely used biomedical imaging tool, primarily in ophthalmology to diagnose and stage retinal diseases. In order to increase access for a wider range of applications and in low resource settings, we developed a portable, low-cost OCT system that has comparable imaging performance to commercially available systems. Here, we present the system design and characterization and compare the system performance to other commercially available OCT ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University Adam Wax William J. Brown
16. CHORIOCAPILLARIS FLOW VOIDS IN CRYPTOCOCCAL CHOROIDITIS USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY
  
  Explore LWW Online Feb 1 2018 Ophthalmology
  
  Purpose: To report an unusual case of cryptococcal choroiditis and highlight the multimodal imaging findings, particularly the choriocapillaris flow voids using optical coherence tomography angiography. Methods: Retrospective review of the clinical course of a single patient with cryptococcal choroiditis. Results: A 69-year-old man undergoing chemotherapy for T-cell prolymphocytic leukemia developed disseminated crytococcal neoformans infection. He developed bilateral cryptococcal choroiditis with multiple yellow-white choroidal lesion on fundoscopy in both eyes. Multimodal ...
  Read Full Article
  
  Comment
  
  Mentions: Duke University
17. 1-15 of 475 1 2 3 4 ... 30 31 32 »