Tracking mechanical wave propagation within tissue using phase-sensitive optical coherence tomography: motion artifact and its compensation

Shaozhen Song, Zhihong Huang, Ruikang K. Wang

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    77 Citations (Scopus)

    Abstract

    We describe theoretical and experimental investigations of motion artifacts that can arise in the detection of shear wave propagating within tissue with phase-sensitive optical coherence tomography. We find that the motion artifact is a combined product of sample surface motion and refractive index difference between sample and air, which cannot be neglected when estimating the tissue motion within tissue. A method of compensating the motion artifact is demonstrated, the results of which emphasize the need for surface motion compensation when measuring the mechanical response for elastography or other biomedical applications.
    Original languageEnglish
    Article number121505
    JournalJournal of Biomedical Optics
    Volume18
    Issue number12
    DOIs
    Publication statusPublished - Dec 2013

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