1. Measurement of the absolute velocity of blood flow in early-stage chick embryos using spectral domain optical coherence tomography

    Measurement of the absolute velocity of blood flow in early-stage chick embryos using spectral domain optical coherence tomography

    Doppler optical coherence tomography (OCT) is a noninvasive imaging modality that provides quantitative flow information with high spatial and temporal resolution. However, it is only sensitive to the flow velocity vector parallel to the incident beam. To calculate the absolute velocity, it is necessary to obtain the angle between the incident beam and flow field. In this paper, we describe a practical method to measure the Doppler angle based on the structural information of blood vessels extracted from spectral domain OCT images. In this method, a normal sectional scan of the vessel is performed where the probe beam is perpendicular ...

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