1. Articles from Christian M. Oh

    1-3 of 3
    1. A common-path optical coherence tomography based electrode for structural imaging of nerves and recording of action potentials

      A common-path optical coherence tomography based electrode for structural imaging of nerves and recording of action potentials

      Current technologies for monitoring neural activity either use different variety of electrodes (electrical recording) or require contrast agents introduced exogenously or through genetic modification (optical imaging). Here we demonstrate an optical method for non-contact and contrast agent free detection of nerve activity using phase-resolved optical coherence tomography (pr-OCT). A common-path variation of the pr-OCT is recently implemented and the developed system demonstrated the capability to detect rapid transient structural changes that accompany neural spike propagation. No averaging over multiple trials was required, indicating its capability of single-shot detection of individual impulses from functionally stimulated Limulus optic nerve. The strength of ...

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    2. Feature Of The Week 10/28/12: UC Riverside Presents GPU Accelerated Real-Time Multi-Functional SD-OCT system at 1300nm

      Feature Of The Week 10/28/12: UC Riverside Presents GPU Accelerated Real-Time Multi-Functional SD-OCT system at 1300nm

      We present a GPU accelerated multi-functional spectral domain optical coherence tomography system at 1300nm. The system is capable of real-time processing and display of every intensity image, comprised of 512 pixels by 2048 A-lines acquired at 20 frames per second. The update rate for all four images with size of 512 pixels by 2048 A-lines simultaneously (intensity, phase retardation, flow and en face view) is approximately 10 frames per second. Additionally, we report for the first time the characterization of phase retardation and diattenuation by a sample comprised of a stacked set of polarizing film and wave plate. The calculated ...

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    3. GPU accelerated real-time multi-functional spectral-domain optical coherence tomography system at 1300nm

      GPU accelerated real-time multi-functional spectral-domain optical coherence tomography system at 1300nm

      We present a GPU accelerated multi-functional spectral domain optical coherence tomography system at 1300nm. The system is capable of real-time processing and display of every intensity image, comprised of 512 pixels by 2048 A-lines acquired at 20 frames per second. The update rate for all four images with size of 512 pixels by 2048 A-lines simultaneously (intensity, phase retardation, flow and en face view) is approximately 10 frames per second. Additionally, we report for the first time the characterization of phase retardation and diattenuation by a sample comprised of a stacked set of polarizing film and wave plate. The calculated ...

      Read Full Article
    1-3 of 3
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  2. Topics in the News

    1. (3 articles) UC Riverside
    2. (3 articles) B. Hyle Park
    3. (3 articles) Yan Wang
    4. (3 articles) M. Shahidul Islam
    5. (3 articles) University of Washington
    6. (2 articles) Ruikang K. Wang
    7. (1 articles) Zhejiang University
    8. (1 articles) Cleveland Clinic
    9. (1 articles) UCSD
    10. (1 articles) Sunil K. Srivastava
    11. (1 articles) Justis P. Ehlers
    12. (1 articles) William R. Freeman
    13. (1 articles) Peng Li
    14. (1 articles) Optovue
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    GPU accelerated real-time multi-functional spectral-domain optical coherence tomography system at 1300nm Feature Of The Week 10/28/12: UC Riverside Presents GPU Accelerated Real-Time Multi-Functional SD-OCT system at 1300nm A common-path optical coherence tomography based electrode for structural imaging of nerves and recording of action potentials Impact of cardiometabolic factors on retinal vasculature: A 3x3, 6x6 and 8x8-mm optical coherence tomography angiography study Quantitative research on the interaction between cerebral edema and peripheral cerebral blood perfusion using swept-source optical coherence tomography Optical coherence tomography angiography measures blood pulsatile waveforms at variable tissue depths Optical coherence tomography angiography distortion correction in widefield montage images Multilayered retinal pigment epithelial detachment: an optical coherence tomography angiography perspective Association of Spectral-Domain OCT With Long-term Disability Worsening in Multiple Sclerosis The effect of intravitreal recombinant tissue plasminogen activator injection on diabetic tractional fibrovascular membranes: Proposed criteria using optical coherence tomography Characteristics of treatment-naïve quiescent choroidal neovascularization detected by optical coherence tomography angiography in patients with age-related macular degeneration Mean Platelet Volume/Platelet Count Ratio and Culprit Plaque Morphologies: An Optical Coherence Tomography Study in Patients with ST Segment Elevation Myocardial Infarction