Articles that mention University of North Carolina -Optical Coherence Tomography News

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1. Mentioned In 86 Articles
2. Optical coherence tomography angiography characterisation of Best disease and associated choroidal neovascularisation
  
  Explore BJO Online Jul 31 2017 Ophthalmology
  
  Aims To characterise the vasculature of the retina in patients with Best vitelliform dystrophy, including those with choroidal neovascularisation (CNV), using optical coherence tomography angiography (OCTA) and correlate with fluorescein angiography (FA). Methods This prospective observational study included 19 eyes of 10 patients with Best disease. Using OCTA, all layers of retina were qualitatively characterised for each eye. Patients with CNV also underwent FA, and areas of CNV were measured ...
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  Mentions: L V Prasad Eye Institute University of North Carolina
3. Feature of the Week 05/14/2017: Real-Time Monitoring of Mucus Thinning Treatments using Diffusion-Sensitive Optical Coherence Tomography
  
  Explore Optical Coherence Tomography News May 14 2017
  
  ...rsonalized treatments in the clinic. For more information see recent Article . Courtesy Richard Blackmon from University of North Carolina . The airway epithelium is coated with a biopolymeric mucus gel which is responsi...
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  Mentions: Amy L. Oldenburg University of North Carolina Richard L. Blackmon
4. Direct monitoring of pulmonary disease treatment biomarkers using plasmonic gold nanorods with diffusion-sensitive OCT
  
  Explore RSC Publishing Home Apr 1 2017
  
  The solid concentration of pulmonary mucus (wt%) is critical to respiratory health. In patients with respiratory disease, such as Cystic Fibrosis (CF) and Chronic Obstructive Pulmonary Disorder (COPD), mucus hydration is impaired, resulting in high wt%. Mucus with high wt% is a hallmark of pulmonary disease that leads to obstructed airways, inflammation, and infection. Methods to measure mucus hydration in situ and in real-time are needed for drug development and ...
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  Mentions: Amy L. Oldenburg University of North Carolina Richard L. Blackmon
5. Airway compliance measured by anatomic optical coherence tomography
  
  Explore OSA | OSA Publishing Mar 24 2017 Pulmonology
  
  Quantification of airway compliance can aid in the diagnosis and treatment of obstructive airway disorders by detecting regions vulnerable to collapse. Here we evaluate the ability of a swept-source anatomic optical coherence tomography (SSaOCT) system to quantify airway cross-sectional compliance (CC) by measuring changes in the luminal cross-sectional area (CSA) under physiologically relevant pressures of 1040 cmH 2 O. The accuracy and precision of CC measurements are determined using simulations ...
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  Mentions: Amy L. Oldenburg University of North Carolina Physical Sciences Incorporated
6. Multi-modal anatomical optical coherence tomography and CT for in vivo dynamic upper airway imaging
  
  Explore Conference Proceedings Feb 16 2017 Pulmonology
  
  We describe a novel, multi-modal imaging protocol for validating quantitative dynamic airway imaging performed using anatomical Optical Coherence Tomography (aOCT). The aOCT system consists of a catheter-based aOCT probe that is deployed via a bronchoscope, while a programmable ventilator is used to control airway pressure. This setup is employed on the bed of a Siemens Biograph CT system capable of performing respiratory-gated acquisitions. In this arrangement the position of the ...
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  Mentions: Siemens Amy L. Oldenburg University of North Carolina
7. Choroid Segmentation from Optical Coherence Tomography with Graph-Edge Weights Learned from Deep Convolutional Neural Networks
  
  Explore ScienceDirect Jan 20 2017 Ophthalmology
  
  Examining choroid in Optical Coherence Tomography (OCT) plays a vital role in pathophysiologic factors of many ocular conditions. Among the existing approaches to detecting choroidal boundaries, graph-searching based techniques belong to the state-of-the-art. However, most of these techniques rely on hand-crafted models on the graph-edge weight and their performances are limited mainly due to the weak choroidal boundaries, textural structure of the choroid, inhomogeneity of the textural structure of the ...
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  Mentions: University of North Carolina
8. High-speed and high-sensitivity parallel spectral-domain optical coherence tomography using a supercontinuum light source
  
  Explore OSA | OSA Publishing Dec 1 2016 Broadband Sources
  
  The three most important metrics in optical coherence tomography (OCT) are resolution, speed, and sensitivity. Because there is a complex interplay between these metrics, no previous work has obtained the best performance in all three metrics simultaneously. We demonstrate that a high-power supercontinuum source, in combination with parallel spectral-domain OCT, achieves an unparalleled combination of resolution, speed, and sensitivity. This system captures cross-sectional images spanning 4 mm 0.5 mm ...
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  Mentions: University of Texas at Austin Amy L. Oldenburg University of North Carolina
9. Mass. General studies identify differences underlying the airway responses of patients with asthma
  
  Explore Massachusetts General Hospital Home Oct 5 2016 Pulmonology
  
  ... receptors for type 2 innate immune signals. A collaborator with Luster’s team, Mehmet Kesimer, PhD, from the University of North Carolina at Chapel Hill, analyzed both the amount and the consistency of mucus secreted in...
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  Mentions: National Institutes of Health Massachusetts General Hospital Harvard University
10. University of North Carolina Receives NIH Grant for Imaging Nanophysical Properties of Actively Transporting Bronchial Mucus
  
  Explore Optical Coherence Tomography News Aug 9 2016 Pulmonology , Funding
  
  ...portant link to in vivo-like conditions, providing previously inaccessible insight on MCT and drug therapies. University of North Carolina at Chapel Hill Receives a 2016 NIH Grant for $234,624 for Imaging Nanophysical Pr...
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  Mentions: National Institutes of Health Amy L. Oldenburg University of North Carolina
11. Magnetic and Plasmonic Contrast Agents in Optical Coherence Tomography
  
  Explore IEEE Xplore Jul 22 2016
  
  Optical coherence tomography (OCT) has gained widespread application for many biomedical applications, yet the traditional array of contrast agents used in incoherent imaging modalities do not provide contrast in OCT. Owing to the high biocompatibility of iron oxides and noble metals, magnetic and plasmonic nanoparticles, respectively, have been developed as OCT contrast agents to enable a range of biological and pre-clinical studies. Here, we provide a review of these developments ...
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  Mentions: Amy L. Oldenburg University of North Carolina Richard L. Blackmon
12. Imaging Extracellular Matrix Remodeling In Vitro by Diffusion-Sensitive Optical Coherence Tomography
  
  Explore ScienceDirect Apr 28 2016 Ophthalmology
  
  The mammary gland extracellular matrix (ECM) is comprised of biopolymers, primarily collagen I, that are created and maintained by stromal fibroblasts. ECM remodeling by fibroblasts results in changes in ECM fiber spacing (pores) that have been shown to play a critical role in the aggressiveness of breast cancer. However, minimally invasive methods to measure the spatial distribution of ECM pore areas within tissues and in vitro 3D culture models are ...
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  Mentions: Amy L. Oldenburg University of North Carolina Richard L. Blackmon
13. Swept-source anatomic optical coherence elastography of porcine trachea
  
  Explore Conference Proceedings Mar 15 2016
  
  Quantitative endoscopic imaging is at the vanguard of novel techniques in the assessment upper airway obstruction. Anatomic optical coherence tomography (aOCT) has the potential to provide the geometry of the airway lumen with high-resolution and in 4 dimensions. By coupling aOCT with measurements of pressure, optical coherence elastography (OCE) can be performed to characterize airway wall stiffness. This can aid in identifying regions of dynamic collapse as well as informing ...
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  Mentions: Amy L. Oldenburg University of North Carolina
14. Diffusion-sensitive optical coherence tomography for real-time monitoring of mucus thinning treatments
  
  Explore Conference Proceedings Mar 15 2016 Otolaryngology
  
  Mucus hydration (wt%) has become an increasingly useful metric in real-time assessment of respiratory health in diseases like cystic fibrosis and COPD, with higher wt% indicative of diseased states. However, available in vivo rheological techniques are lacking. Gold nanorods (GNRs) are attractive biological probes whose diffusion through tissue is sensitive to the correlation length of comprising biopolymers. Through employment of dynamic light scattering theory on OCT signals from GNRs, we ...
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  Mentions: Amy L. Oldenburg University of North Carolina Richard L. Blackmon
15. Residual and Dynamic Range of Retinal Nerve Fiber Layer Thickness in Glaucoma: Comparison of Three OCT Platforms
  
  Explore IOVS Journal Oct 6 2015 Ophthalmology
  
  Purpose : To estimate visual field (VF) sensitivity at which retinal nerve fiber layer (RNFL) thinning reaches the measurement floor and at which RNFL stops thinning (change points), the dynamic range of RNFL thickness, and the number of steps from normal to RNFL floor among three optical coherence tomography (OCT) devices. Methods : Glaucomatous patients ( n = 58) and healthy subjects ( n = 5560) prospectively underwent VF testing and RNFL thickness measurement with Cirrus ...
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  Mentions: Optovue Heidelberg Engineering Yale University
16. The Characteristics and Short-term Refractive Error Outcomes of Cystoid Macular Edema in Premature Neonates as Detected by Spectral-Domain Optical Coherence Tomography
  
  Explore Healio.com Sep 30 2015 Ophthalmology
  
  $The Characteristics and Short-term Refractive Error Outcomes of Cystoid Macular Edema in Premature Neonates as Detected by Spectral-Domain Optical Coherence Tomography$
  ...C). This work was previously presented as a poster presentation for the John B. Graham Medical Society at the University of North Carolina School of Medicine on January 16, 2014, and the Association for Research in Visio...
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  Mentions: University of Washington University of North Carolina
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