1. Articles mentioning both Zhongping Chen and Gangjun Liu

    1-24 of 33 1 2 »
    1. Apparatus and method for capturing a vital vascular fingerprint

      Apparatus and method for capturing a vital vascular fingerprint
      A method using optical coherence tomography to capture the microvascular network of the superficial layer of the finger skin for the purpose of fingerprint authentication and liveness detection. At the dermal papilla region, the vascular pattern follows the same pattern of the fingerprint and this vascular pattern forms a live vascular fingerprint. This live vascular fingerprint provides for ultrahigh security and a unique way for fingerprint-based personal verification. Because the ...
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    2. Apparatus and Method for Capturing a Vital Vascular Fingerprint

      Apparatus and Method for Capturing a Vital Vascular Fingerprint
      A method using optical coherence tomography to capture the microvascular network of the superficial layer of the finger skin for the purpose of fingerprint authentication and liveness detection. At the dermal papilla region, the vascular pattern follows the same pattern of the fingerprint and this vascular pattern forms a live vascular fingerprint. This live vascular fingerprint provides for ultrahigh security and a unique way for fingerprint-based personal verification. Because the ...
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    3. In vivo, high-resolution, three-dimensional imaging of port wine stain microvasculature in human skin

      In vivo, high-resolution, three-dimensional imaging of port wine stain microvasculature in human skin
      Port-wine stain (PWS) is a congenital, progressive vascular malformation of the dermis. In the past few years, advances in optical coherence tomography (OCT) technology have greatly increased imaging speed. Sophisticated numerical algorithms have improved the sensitivity of Doppler OCT dramatically. These improvements have enabled the noninvasive, high-resolution, three-dimensional functional imaging of PWS skin. In this study, high-resolution, three-dimensional, microvasculature imaging of PWS using Doppler OCT technique is demonstrated. Three-dimensional imaging ...
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    4. Advances in Doppler OCT

      Advances in Doppler OCT
      We review the principle and some recent applications of Doppler optical coherence tomography (OCT). The advances of the phase-resolved Doppler OCT method are described. Functional OCT algorithms which are based on an extension of the phase-resolved scheme are also introduced. Recent applications of Doppler OCT for quantification of flow, imaging of microvasculature and vocal fold vibration, and optical coherence elastography are briefly discussed.
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    5. Evaluation of optical coherence tomography for the measurement of the effects of activators and anticoagulants on the blood coagulation in vitro

      Evaluation of optical coherence tomography for the measurement of the effects of activators and anticoagulants on the blood coagulation in vitro
      Optical properties of human blood during coagulation was studied using optical coherence tomography (OCT) and the parameter of clotting time derived from the 1/e light penetration depth (d1/e) vs. time was developed in our previous work. In this study, in order to know if a new optical coherence tomography test can characterize the blood coagulation process under different treatments in vitro, the effects of two different activators (calcium ...
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    6. Phase-resolved acoustic radiation force optical coherence elastography

      Phase-resolved acoustic radiation force optical coherence elastography
      Many diseases involve changes in the biomechanical properties of tissue, and there is a close correlation between tissue elasticity and pathology. We report on the development of a phase-resolved acoustic radiation force optical coherence elastography method (ARF-OCE) to evaluate the elastic properties of tissue. This method utilizes chirped acoustic radiation force to produce excitation along the samples axial direction, and it uses phase-resolved optical coherence tomography (OCT) to measure the ...
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    7. A comparison of Doppler optical coherence tomography methods

      A comparison of Doppler optical coherence tomography methods
      We compare, in detail, the phase-resolved color Doppler (PRCD), phase-resolved Doppler variance (PRDV) and intensity-based Doppler variance (IBDV) methods. All the methods are able to quantify flow speed when the flow rate is within a certain range, which is dependent on the adjacent A-line time interval. While PRCD is most sensitive when the flow direction is along the probing beam, PRDV and IBDV can be used to measure the flow ...
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    8. Intravascular atherosclerotic imaging with combined fluorescence and optical coherence tomography probe based on a double-clad fiber combiner

      Intravascular atherosclerotic imaging with combined fluorescence and optical coherence tomography probe based on a double-clad fiber combiner
      We developed a multimodality fluorescence and optical coherence tomography probe based on a double-clad fiber (DCF) combiner. The probe is composed of a DCF combiner, grin lens, and micromotor in the distal end. An integrated swept-source optical coherence tomography and fluorescence intensity imaging system was developed based on the combined probe for the early diagnoses of atherosclerosis. This system is capable of real-time data acquisition and processing as well as ...
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    9. Feature Of The Week 12/18/11: UC Irvine Demonstrates Functional Imaging of Vibrating Vocal Folds with a High Speed OCT and ODT system

      Feature Of The Week 12/18/11: UC Irvine Demonstrates Functional Imaging of Vibrating Vocal Folds with a High Speed OCT and ODT system
      ...images was obtained with the Doppler variance images.For more information please see recent Article. Courtesy Gangjun Liu. To share this article click Here.    Vocal fold vibration is vital in voice production and the...
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    10. 1-24 of 33 1 2 »
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      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
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  2. Organizations in the News

    1. (33 articles) UC Irvine
    2. (1 articles) National Institutes of Health
    3. (1 articles) University of Southern California
    4. (1 articles) Zhejiang University
  3. People in the News

    1. (10 articles) Lingfeng Yu
    2. (7 articles) Jun Zhang
    3. (7 articles) Wenjuan Qi
    4. (5 articles) Arya Saidi
    5. (5 articles) Brian J. F. Wong
    6. (4 articles) Bernard Choi
    7. (4 articles) Marc Rubinstein
    8. (4 articles) Matthew Brenner
    9. (2 articles) Jiechen Yin
    10. (2 articles) Shuguang Guo
    11. (2 articles) J. Stuart Nelson
    12. (2 articles) Allen I. Foulad
  4. OCT Companies in the News

    1. (1 articles) Axsun Technologies