Articles that mention Joseph C. Jing -Optical Coherence Tomography News

Joseph C. Jing

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1. Mentioned In 26 Articles
2. Method to characterize cut gemstones using optical coherence tomography
  
  Explore uspto.gov Oct 29 2019 NDE/NDT , Other Non-Medical , Patents
  
  The invention includes an improvement in a method of assessing a gemstone having at least one planar face with an internally reflecting surface including the steps of optically modifying the at least one planar face of the gemstone to return a sample beam from an internally reflecting plane corresponding to the at least one planar face to an optical coherence tomography (OCT) system; selectively directing the sample beam from an ...
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  Mentions: Zhongping Chen UC Irvine Matthew Brenner
3. Dynamic programming and automated segmentation of optical coherence tomography images of the neonatal subglottis: enabling efficient diagnostics to manage subglottic stenosis
  
  Explore SPIE Digital Library Sep 10 2019 Otolaryngology
  
  Subglottic stenosis (SGS) is a challenging disease to diagnose in neonates. Long-range optical coherence tomography (OCT) is an optical imaging modality that has been described to image the subglottis in intubated neonates. A major challenge associated with OCT imaging is the lack of an automated method for image analysis and micrometry of large volumes of data that are acquired with each airway scan (1 to 2 Gb). We developed a ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
4. 1.7 micron optical coherence tomography for vaginal tissue characterization in vivo
  
  Explore Wiley Online Library Jul 30 2018 Gynecology
  
  Objectives Optical coherence tomography (OCT) can noninvasively visualize in vivo tissue microstructure with high spatial resolution that approaches the histologic level. Currently, OCT studies in gynecology are few and limited to a conventional 1.3m center wavelength swept light source which provides high spatial resolution but limited penetration depth. Here, we present a novel endoscopic OCT system with improved penetration depth and high resolution. Methods A novel endoscopic OCT system ...
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  Mentions: Zhongping Chen UC Irvine Yan Li
5. Multimodality endoscopic optical coherence tomography and fluorescence imaging technology for visualization of layered architecture and subsurface microvasculature
  
  Explore OSA | OSA Publishing May 2 2018 Gastroenterology , Probes
  
  Endoscopic imaging technologies, such as endoscopic optical coherence tomography (OCT) and near-infrared fluorescence, have been used to investigate vascular and morphological changes as hallmarks of early cancer in the gastrointestinal tract. Here we developed a high-speed multimodality endoscopic OCT and fluorescence imaging system. Using this system, the architectural morphology and vasculature of the rectum wall were obtained simultaneously from a Sprague Dawley rat in vivo . This multimodality imaging strategy in ...
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  Mentions: Zhongping Chen UC Irvine Yan Li
6. Intravascular Optical Coherence Tomography for Characterization of Atherosclerosis with a 1.7 Micron Swept-Source Laser
  
  Explore Nature Publishing Group Nov 15 2017 Cardiology
  
  The main cause of acute coronary events, such as thrombosis, is the rupture of atherosclerotic plaques. Typical intravascular optical coherence tomography (IVOCT) imaging systems that utilize a 1.3m swept source laser are often used for identifying fibrous cap thickness of plaques, yet cannot provide adequate depth penetration to resolve the size of the lipid pool. Here, we present a novel IVOCT system with a 1.7m center wavelength swept ...
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  Mentions: Zhongping Chen UC Irvine Yan Li
7. In vivo imaging of the internal nasal valve during different conditions using optical coherence tomography
  
  Explore Wiley Online Library Oct 22 2017 Otolaryngology
  
  Objective Previously, we proposed long-range optical coherence tomography (LR-OCT) to be an effective method for the quantitative evaluation of the nasal valve geometry. Here, the objective was to quantify the reduction in the internal nasal valve angle and cross-sectional area that results in subjective nasal airway obstruction and to evaluate the dynamic behavior of the valve during respiration using LR-OCT. Methods For 16 healthy individuals, LR-OCT was performed in each ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
8. Feature Of The Week 10/22/2017: Visualization and Detection of Ciliary Beating Pattern and Frequency in the Upper Airway using Phase Resolved Doppler Optical Coherence Tomography
  
  Explore Optical Coherence Tomography News Oct 22 2017
  
  ...ating pattern which plays critical roles in cilia function. For more information see recent Article. Courtesy Joseph Jing and Zhongping Chen and from University of California at Irvine....
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
9. Visualization and Detection of Ciliary Beating Pattern and Frequency in the Upper Airway using Phase Resolved Doppler Optical Coherence Tomography
  
  Explore Nature Publishing Group Sep 2 2017 Pulmonology
  
  Ciliary motion plays a critical role in the overall respiratory health of the upper airway. These cilia beat at a native frequency and in a synchronized pattern to continuously transport foreign particulate trapped in a layer of mucous out of the upper airway. Disruption of ciliary motion can lead to severe respiratory diseases and compromised respiratory function. Currently, the study of cilia requires expensive high speed cameras and high powered ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
10. Fully integrated optical coherence tomography, ultrasound, and indocyanine green-based fluorescence tri-modality system for intravascular imaging
  
  Explore OSA | OSA Publishing Jan 28 2017 Cardiology
  
  We present a tri-modality imaging system and fully integrated tri-modality probe for intravascular imaging. The tri-modality imaging system is able to simultaneously acquire optical coherence tomography (OCT), ultrasound (US), and fluorescence imaging. Moreover, for fluorescence imaging, we used the FDA-approved indocyanine green (ICG) dye as the contrast agent to target lipid-loaded macrophages. We conducted imaging from a male New Zealand white rabbit to evaluate the performance of the tri-modality system ...
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  Mentions: Zhongping Chen UC Irvine Yan Li
11. Anatomically correct visualization of the human upper airway using a high-speed long range optical coherence tomography system with an integrated positioning sensor
  
  Explore Nature Publishing Group Dec 20 2016 Pulmonology
  
  The upper airway is a complex tissue structure that is prone to collapse. Current methods for studying airway obstruction are inadequate in safety, cost, or availability, such as CT or MRI, or only provide localized qualitative information such as flexible endoscopy. Long range optical coherence tomography (OCT) has been used to visualize the human airway in vivo , however the limited imaging range has prevented full delineation of the various shapes ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
12. Diagnosis of subglottic stenosis in a rabbit model using long-range optical coherence tomography
  
  Explore Wiley Online Library Aug 25 2016 Otolaryngology
  
  Objectives/Hypothesis Current imaging modalities lack the necessary resolution to diagnose subglottic stenosis. The aim of this study was to use optical coherence tomography (OCT) to evaluate nascent subglottic mucosal injury and characterize mucosal thickness and structural changes using texture analysis in a simulated intubation rabbit model. Study Design Prospective animal study in rabbits. Methods Three-centimeter-long sections of endotracheal tubes (ETT) were endoscopically placed in the subglottis and proximal trachea ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
13. Measurement of ciliary beat frequency using ultra-high resolution optical coherence tomography
  
  Explore Conference Proceedings Mar 22 2016
  
  Ciliated epithelial cells populate up to 80% of the surface area of the human airway and are responsible for mucociliary transport, which is the key protective mechanism that provides the first line of defense in the respiratory tract. Cilia beat in a rhythmic pattern and may be easily affected by allergens, pollutants, and pathogens, altering ciliary beat frequency (CBF) subsequently. Diseases including cystic fibrosis, chronic obstructive pulmonary disease, and primary ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
14. In vivo cross-sectional imaging of the phonating larynx using long-range Doppler optical coherence tomography
  
  Explore Nature Publishing Group Mar 11 2016 Otolaryngology
  
  Diagnosis and treatment of vocal fold lesions has been a long-evolving science for the otolaryngologist. Contemporary practice requires biopsy of a glottal lesion in the operating room under general anesthesia for diagnosis. Current in-office technology is limited to visualizing the surface of the vocal folds with fiber-optic or rigid endoscopy and using stroboscopic or high-speed video to infer information about submucosal processes. Previous efforts using optical coherence tomography (OCT) have ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
15. Long-Range Optical Coherence Tomography of the Neonatal Upper Airway for Early Diagnosis of Intubation-related Subglottic Injury
  
  Explore Home (thoracic) Dec 16 2015 Pulmonology
  
  Rationale: Subglottic edema and acquired subglottic stenosis are potentially airway-compromising sequelae in neonates following endotracheal intubation. At present, no imaging modality is capable of in vivo diagnosis of subepithelial airway wall pathology as signs of intubation-related injury. Objectives: To use Fourier domain long-range optical coherence tomography (LR-OCT) to acquire micrometer-resolution images of the airway wall of intubated neonates in a neonatal intensive care unit setting and to analyze images for ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
16. Long Range Optical Coherence Tomography of the Neonatal Upper Airway for Early Diagnosis of Intubation-related Subglottic Injury
  
  Explore Home (thoracic) Jul 28 2015 Pulmonology
  
  Subglottic edema and acquired subglottic stenosis are potentially airway -compromising sequelae in neonates following endotracheal intubation . At present, no imaging modality is capable of in vivo diagnosis of subepithelial airway wall pathology as signs of intubation - related injury . OBJECTIVES: To use Fourier domain long - range optical coherence tomography (LR-OCT) to acquire micrometer-resolution images of the airway wall of intubated neonates in a neonatal intensive care unit (NICU) setting and to ...
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  Mentions: Zhongping Chen UC Irvine Brian J. F. Wong
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