1. Chunhui Li

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    1. Mentioned In 17 Articles

    2. Feasibility study of using the dispersion of surface acoustic wave (SAW) impulse for viscoelasticity characterization in tissue mimicking phantoms

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      Feasibility study of using the dispersion of surface acoustic wave (SAW) impulse for viscoelasticity characterization in tissue mimicking phantoms
      The aim of this study was to investigate the feasibility of utilizing the phase velocity dispersion of impulse surface acoustic wave (SAW) for viscoelasticity characterization of soft materials. The focused ultrasound transducer and the phase sensitive optical coherence tomography (PhS‐OCT) were applied as the impulse SAW inducer and tracker respectively. Three types of liquid‐paraffin‐based cream‐in‐agar phantoms were tested. Phase velocity dispersion curve was extracted using ...
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      Mentions: Chunhui Li Ghulam Nabi University of Dundee

    3. The potential of high intensity focused ultrasound (HIFU) combine phase-sensitive optical coherence tomography (PhS-OCT) for diseases diagnosis, treatment and monitoring

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      The potential of high intensity focused ultrasound (HIFU) combine phase-sensitive optical coherence tomography (PhS-OCT) for diseases diagnosis, treatment and monitoring
      HIFU is a truly noninvasive, acoustic therapeutic technique that utilizes high intensity acoustic field in the focus to kill the targeted tissue for disease treatment purpose. The mechanical properties of targeted tissue changes before and after treatment, and this change can be accurately detected by shear wave elastography. Hence, shear wave elastography is usually used for monitoring HIFU treatment asynchronously. To improve the low spatial resolution in ultrasound shear wave ...
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      Mentions: Yan Wang Chunhui Li University of Dundee

    4. Structural characterization on in vitro porcine skin treated by ablative fractional laser using optical coherence tomography

      Explore SPIE Digital Library Dermatology
      Structural characterization on in vitro porcine skin treated by ablative fractional laser using optical coherence tomography
      Ablative fractional skin laser is widely applied for various skin conditions, especially for cosmetic repairing and promoting the located drug delivery. Although the influence of laser treatment over the skin has been explored before in means of excision and biopsy with microscopy, these approaches are invasive, only morphological and capable of distorting the skin. In this paper the authors use fresh porcine skin samples irradiated by the lasers, followed by ...
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      Mentions: Chunhui Li University of Dundee

    5. Quantitative assessment of the mechanical properties of prostate tissue with optical coherence elastography

      Explore SPIE Digital Library Urology
      Quantitative assessment of the mechanical properties of prostate tissue with optical coherence elastography
      Prostate cancer (PCa) is a heterogeneous disease with multifocal origin. In current clinical care, the Gleason scoring system is the well-established diagnosis by microscopic evaluation of the tissue from trans-rectal ultrasound (TRUS) guided biopsies. Nevertheless, the sensitivity and specificity in detecting PCa can range from 40 to 50% for conventional TRUS B-mode imaging. Tissue elasticity is associated with the disease progression and elastography technique has recently shown promise in aiding ...
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      Mentions: Chunhui Li Ghulam Nabi University of Dundee

    6. High intensity focused ultrasound (HIFU) and phase-sensitive optical coherence tomography (PhS-OCT) for high resolution surface acoustic wave (SAW) elastography

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      High intensity focused ultrasound (HIFU) and phase-sensitive optical coherence tomography (PhS-OCT) for high resolution surface acoustic wave (SAW) elastography
      Elastography has the ability of quantitatively evaluating the mechanical properties of soft tissue, thus is helpful for diagnosis and treatment monitoring for many diseases, e.g. skin diseases. Surface acoustic waves (SAWs) have been proven to be a non-invasive, non-destructive method for accurate characterization of tissue elastic properties.Current surface acoustic wave elastography using high energy laser pulse or mechanical shaker still have some problems. In order to improve SAW ...
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      Mentions: Chunhui Li University of Dundee

    7. Effects of fixation and preservation on tissue elastic properties measured by quantitative optical coherence elastography (OCE)

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      Effects of fixation and preservation on tissue elastic properties measured by quantitative optical coherence elastography (OCE)
      Fixed and preserved tissues have been massively used in the development of biomedical equipment and instrumentation. Not only the tissue morphology, but also its mechanical properties need to be considered in the fixation and preservation procedures since mechanical properties have significant influence on the design and performance of such instruments. Understanding the effects of storage and preservation conditions on the mechanical properties of soft tissue has both clinical and experimental ...
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      Mentions: Chunhui Li Ghulam Nabi University of Dundee

    8. Feature Of The Week 01/25/15: Detection and characterisation of biopsy tissue using quantitative optical coherence elastogaphy (OCE) in men with suspected prostate cancer.

      Explore Optical Coherence Tomography News Oncology , Urology
      Feature Of The Week 01/25/15: Detection and characterisation of biopsy tissue using quantitative optical coherence elastogaphy (OCE) in men with suspected prostate cancer.
      ...he ability to predict the percentage involvement of PCa. For more information see recent Article. Courtesy of Chunhui Li and Ghulam Nabi from University of Dundee....
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      Mentions: University of Washington Ruikang K. Wang Chunhui Li

    9. Detection and characterisation of biopsy tissue using quantitative optical coherence elastography (OCE) in men with suspected prostate cancer

      Explore ScienceDirect Oncology , Urology
      Detection and characterisation of biopsy tissue using quantitative optical coherence elastography (OCE) in men with suspected prostate cancer
      We present first quantitative three-dimensional (3D) data sets recorded using optical coherence elastography (OCE) for the diagnosis and detection of prostate cancer (PCa). 120 transrectal ultrasound guided prostate biopsy specimens from 10 men suspected with prostate cancer were imaged using OCE. 3D quantitative mechanical assessment of biopsy specimens obtained in kilopascals (kPa) at an interval of 40m was compared with histopathology. Sensitivity, specificity, and positive and negative predictive values were ...
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      Mentions: University of Washington Ruikang K. Wang Chunhui Li

    11. Laser induced surface acoustic wave combined with phase sensitive optical coherence tomography for superficial tissue characterization: a solution for practical application

      Explore opticsinfobase.org
      Laser induced surface acoustic wave combined with phase sensitive optical coherence tomography for superficial tissue characterization: a solution for practical application
      ...hui Li, Guangying Guan, Fan Zhang, Ghulam Nabi, Ruikang K. Wang, and Zhihong Huang »View Author Affiliations Chunhui Li,^1 Guangying Guan,^2,^3 Fan Zhang,^2 Ghulam Nabi,^1 Ruikang K. Wang,^2,^3 and Zhihong Huang^2 ^1D...
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      Mentions: University of Washington Ruikang K. Wang Chunhui Li

    12. Quantitative evaluation of degenerated tendon model using combined optical coherence elastography and acoustic radiation force method

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      Quantitative evaluation of degenerated tendon model using combined optical coherence elastography and acoustic radiation force method
      Damage of collagen fibers in tendons is often directly related to changes in a tendons mechanical properties. Direct quantitative elasticity measurement of tendons will provide important information in tendon dysfunction diagnosis and treatment assessment. A feasibility study of quantifying the mechanical properties of a degenerated tendon model by a nondestructive imaging modality, which combines optical coherence elastography and acoustic radiation force (ARF) method, is presented. The degenerated tendon model was ...
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      Mentions: University of Washington Ruikang K. Wang Ying Yang

    14. Evaluating elastic properties of heterogeneous soft tissue by surface acoustic waves detected by phase-sensitive optical coherence tomography

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      Evaluating elastic properties of heterogeneous soft tissue by surface acoustic waves detected by phase-sensitive optical coherence tomography
      The combined use of surface acoustic wave (SAW) and phase-sensitive optical coherence tomography (PhS-OCT) is useful to evaluate the elasticity of layered biological tissues, such as normal skin. However, the pathological tissue is often originated locally, leading to the alternation of mechanical properties along both axial and lateral directions. We present a feasibility study on whether the SAW technique is sensitive to detect the alternation of mechanical property along the ...
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      Mentions: University of Washington Ruikang K. Wang Chunhui Li

    16. Determining elastic properties of skin by measuring surface waves from an impulse mechanical stimulus using phase-sensitive optical coherence tomography

      Explore Journal of the Royal Society Interface Dermatology
      Determining elastic properties of skin by measuring surface waves from an impulse mechanical stimulus using phase-sensitive optical coherence tomography
      The mechanical properties of skin are important tissue parameters that are useful for understanding skin patho-physiology, which can aid disease diagnosis and treatment. This paper presents an innovative method that employs phase-sensitive spectral-domain optical coherence tomography (PhS-OCT) to characterize the biomechanical properties of skin by measuring surface waves induced by short impulses from a home-made shaker. Experiments are carried out on single and double-layer agaragar phantoms, of different concentrations and ...
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      Mentions: University of Washington Ruikang K. Wang Chunhui Li
    19. 1-17 of 17
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  4. About Chunhui Li

    Chunhui Li is a postdoctoral research assistant at Division of Imaging and Technology at Ninewells Hospital, University of Dundee. Her research interests focus on elastography combining with different imaging modalities, including optical coherence tomography, photoacoustic imaging and ultrasound imaging.

  5. Related Topics

    1. Elastic properties of soft tissue-mimicking phantoms assessed by combined use of laser ultrasonics and low coherence interferometry
      11 articles also mentioned University of Washington
    2. Determining elastic properties of skin by measuring surface waves from an impulse mechanical stimulus using phase-sensitive optical coherence tomography
      11 articles also mentioned University of Dundee
    3. Laser induced surface acoustic wave combined with phase sensitive optical coherence tomography for superficial tissue characterization: a solution for practical application
      7 articles also mentioned Ghulam Nabi
    4. The potential of high intensity focused ultrasound (HIFU) combine phase-sensitive optical coherence tomography (PhS-OCT) for diseases diagnosis, treatment and monitoring
      1 articles also mentioned Yan Wang
    5. Quantitative evaluation of degenerated tendon model using combined optical coherence elastography and acoustic radiation force method
      1 articles also mentioned Ying Yang