1. Articles from Chuanyong Huang

    1-3 of 3
    1. High speed, full range imaging with harmonic detection swept source optical coherence tomography

      High speed, full range imaging with harmonic detection swept source optical coherence tomography
      complication of Fourier domain optical coherence tomography (OCT) methods, such as spectral domain and swept source OCT, is the complex conjugate ambiguity due to inverse Fourier transform of real-valued data. As a result, the image is symmetric to the zero plane, and only half of the theoretical imaging depth range is used to avoid overlapping "mirror images" that confuse the image. We have previously demonstrated harmonic detection in a video-rate spectral domain OCT system using a high speed line scan camera. Harmonic detection removes the complex conjugate ambiguity by providing the real and imaginary components of the spectral interferogram. In ...
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    2. Experimental confirmation of potential swept source optical coherence tomography performance limitations

      Experimental confirmation of potential swept source optical coherence tomography performance limitations
      OCT has demonstrated considerable potential for a wide range of medical applications. Initial work was done in the time domain (TD-OCT) approach, but recent interest has been generated with spectral domain (SD-OCT) approaches. While SD-OCT offers higher data acquisition rates and no movable parts, we recently pointed out th eoretical inferior aspects to its performance relative to TD-OC T. In this paper we focus on specific limitations of swept source OCT (SS-OCT) as this is the more versatile of the two SD-OCT embodiments. We present experimental evidence of reduced imaging penetration, increased low frequency noise, higher multiple scattering (which can ...
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    3. Ultrasound-enhanced optical coherence tomography: improved penetration and resolution

      Ultrasound-enhanced optical coherence tomography: improved penetration and resolution
      Chuanyong Huang, Bin Liu, Mark E. Brezinski Increasing penetration remains one of the most important issues in optical coherence tomography (OCT) research, which we achieved with a parallel ultrasound beam. In addition to qualitative improvements of tissue imaging, quantitative improvements in resolution of up to 28%±2% was noted. At ... [J. Opt. Soc. Am. A 25, 938-946 (2008)]
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    1-3 of 3
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  2. Topics in the News

    1. (2 articles) Brigham and Women’s Hospital
    2. (2 articles) Harvard University
    3. (1 articles) Southwest Sciences Inc.
    4. (1 articles) Northwestern University
    5. (1 articles) University College London
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    Ultrasound-enhanced optical coherence tomography: improved penetration and resolution Experimental confirmation of potential swept source optical coherence tomography performance limitations High speed, full range imaging with harmonic detection swept source optical coherence tomography Influence of scan direction on subfoveal choroidal vascularity index using optical coherence tomography Subthreshold Nanosecond Laser for Non-resolving Central Serous Chorioretinopathy: A Double-masked Sham-controlled Randomised Trial Optical Coherence Tomography Angiography (OCTA) to Assess Cardiac Output and Cerebral Perfusion at the Time of Children's Cardiac Surgery Recent advances in optical coherence tomography for anterior segment imaging in small animals and their clinical implications Intraoperative optical coherence tomography-guided donor corneal tissue assessment and preparation Peripapillary and fovea avascular zone optical coherence tomography angiography parameters in exfoliation glaucoma versus primary open-angle glaucoma versus healthy eyes Comparison of the proposed DCNN model with standard CNN architectures for retinal diseases classification Massachusetts General Hosptial Receives NIH Grant for Screening for Barrett's Esophagus Progressors with Multimodality Tethered Capsule Image-Guided Biopsy Duke University Receives NIH Grant for Robotic Point-of-Care OCT