1. Retinal and choroidal intravascular spectral-domain optical coherence tomography

    Retinal and choroidal intravascular spectral-domain optical coherence tomography

    Purpose:  To examine retinal and choroidal blood vessels using spectral-domain optical coherence tomography (SD-OCT). Methods:  Retrospective case series. Results:  Scans through retinal blood vessels in healthy subjects demonstrated vessel wall reflexes and a tri-layer profile of the blood column on longitudinal scans and a figure-of-eight configuration on cross-sectional scans. Intravascular reflectivity decreased with increasingly oblique angles of observation and was absent when blood flow was parallel to the line of sight. The high blood flow in the choroidal vessels in healthy subjects and the low flow in the retinal vessels in patients with ocular ischaemic syndrome and central retinal artery ...

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