1. UC Irvine

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    1. Mentioned In 288 Articles

    2. Quantitative angle-insensitive flow measurement using relative standard deviation OCT

      Quantitative angle-insensitive flow measurement using relative standard deviation OCT
      Incorporating different data processing methods, optical coherence tomography (OCT) has the ability for high-resolution angiography and quantitative flow velocity measurements. However, OCT angiography cannot provide quantitative information of flow velocities, and the velocity measurement based on Doppler OCT requires the determination of Doppler angles, which is a challenge in a complex vascular network. In this study, we report on a relative standard deviation OCT (RSD-OCT) method which provides both vascular ...
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    3. Intravascular Optical Coherence Tomography for Characterization of Atherosclerosis with a 1.7 Micron Swept-Source Laser

      Intravascular Optical Coherence Tomography for Characterization of Atherosclerosis with a 1.7 Micron Swept-Source Laser
      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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    4. In vivo imaging of the internal nasal valve during different conditions using optical coherence tomography

      In vivo imaging of the internal nasal valve during different conditions using optical coherence tomography
      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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    5. 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

      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
      ...es in cilia function. For more information see recent Article . Courtesy Joe Jing and Zhongping Chen and from University of California at Irvine . Ciliary motion plays a critical role in the overall respiratory health of...
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    6. Visualization and Detection of Ciliary Beating Pattern and Frequency in the Upper Airway using Phase Resolved Doppler Optical Coherence Tomography

      Visualization and Detection of Ciliary Beating Pattern and Frequency in the Upper Airway using Phase Resolved Doppler Optical Coherence Tomography
      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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    7. Miniature probe for mapping mechanical properties of vascular lesions using acoustic radiation force optical coherence elastography

      Miniature probe for mapping mechanical properties of vascular lesions using acoustic radiation force optical coherence elastography
      Cardiovascular diseases are the leading cause of fatalities in the United States. Atherosclerotic plaques are one of the primary complications that can lead to strokes and heart attacks if left untreated. It is essential to diagnose the disease early and distinguish vulnerable plaques from harmless ones. Many methods focus on the structural or molecular properties of plaques. Mechanical properties have been shown to change drastically when abnormalities develop in arterial ...
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    8. Three-dimensional optical coherence tomography reconstruction of bifurcation stenting using the Szabo anchor-wire technique

      Three-dimensional optical coherence tomography reconstruction of bifurcation stenting using the Szabo anchor-wire technique
      Ostial lesions present unique challenges for percutaneous coronary intervention (PCI). These lesions are often more calcified, fibrotic, rigid, and more prone to elastic recoil. Intervention on these lesions is associated with higher procedural complications and higher rates of restenosis. Ostial lesions require precise stent placement in the ostium with the absence of side branch compromise. Accurate stent placement in the ostium without side branch compromise is difficult to accomplish with ...
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      Mentions: UC Irvine
    9. Longitudinal shear wave imaging for elasticity mapping using optical coherence elastography

      Longitudinal shear wave imaging for elasticity mapping using optical coherence elastography
      Shear wave measurements for the determination of tissue elastic properties have been used in clinical diagnosis and soft tissue assessment. A shear wave propagates as a transverse wave where vibration is perpendicular to the wave propagation direction. Previous transverse shear wave measurements could detect the shear modulus in the lateral region of the force; however, they could not provide the elastic information in the axial region of the force. In ...
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    10. Extended axial imaging range, widefield swept source optical coherence tomography angiography

      Extended axial imaging range, widefield swept source optical coherence tomography angiography
      We developed a high-speed, swept source OCT system for widefield OCT angiography (OCTA) imaging. The system has an extended axial imaging range of 6.6 mm. An electrical lens is used for fast, automatic focusing. The recently developed split-spectrum amplitude and phase-gradient angiography allow high-resolution OCTA imaging with only two B-scan repetitions. An improved post-processing algorithm effectively removed trigger jitter artifacts and reduced noise in the flow signal. We demonstrated ...
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    11. UC Irving Receives NIH Grant for Phase Resolved ARF Optical Coherence Elastrography for Intravascular Imaging

      UC Irving Receives NIH Grant for Phase Resolved ARF Optical Coherence Elastrography for Intravascular Imaging
      University of California at Irving Receives a 2017 NIH Grant for $659,953 for Phase Resolved ARF Optical Coherence Elastrography for Intravascular Imaging. The principal investigator is Zhongping Chen. The program began in 2014 and ends in 2018. Below is a summary of the proposed work. The broad, long term objective of the proposed grant is to develop an integrated multimodal intravascular imaging system that combines intravascular optical coherence tomography ...
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    12. NinePoint Medical to Feature the NvisionVLE® Imaging System with Real-time Targeting™ at DDW 2017; Twenty-four Scientific Abstracts to be Presented

      NinePoint Medical to Feature the NvisionVLE® Imaging System with Real-time Targeting™ at DDW 2017; Twenty-four Scientific Abstracts to be Presented
      ... targeting potential disease that may exist below the surface of the esophagus, stated Dr. Kenneth Chang, MD, University of California Irvine Medical Center, Professor and Chief, Division of Gastroenterology. Finding dys...
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    13. Volumetric laser endomicroscopy in the management of Barrett's esophagus

      Volumetric laser endomicroscopy in the management of Barrett's esophagus
      Purpose of review: The incidence of esophageal adenocarcinoma is on the rise despite widespread appreciation that the precursor lesion is Barrett's esophagus. Studies have shown that some patients known to have Barrett's esophagus develop cancer despite their enrollment in conventional endoscopic surveillance programs. This highlights the need for advanced endoscopic imaging to help identify early neoplasia and prevent its progression to esophageal cancer. Recently, a wide-field, second-generation optical ...
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    14. 1-15 of 288 1 2 3 4 ... 18 19 20 »
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  2. About UC Irvine

    UC Irvine

    The University of California at Irvine is a public research university situated in Irvine, California. Founded in 1965, it is the second-youngest University of California campus.   Beckman Laser Institute at the University of California in Irvine. The BLI mission is to serve as the world's leading interdisciplinary center for Biomedical Optics.