1. Comparison of cross sectional optical coherence tomography images of elevated optic nerve heads across acquisition devices and scan protocols

    Comparison of cross sectional optical coherence tomography images of elevated optic nerve heads across acquisition devices and scan protocols

    Background Optic nerve head measurements extracted from optical coherence tomography (OCT) show promise for monitoring clinical conditions with elevated optic nerve heads. The aim of this study is to compare reliability within and between raters and between image acquisition devices of optic nerve measurements derived from OCT scans in eyes with varying degrees of optic nerve elevation. Methods Wide angle line scans and narrow angle radial scans through optic nerve heads were obtained using three spectral domain(SD) OCT devices on 5 subjects (6 swollen optic nerves, 4 normal optic nerves). Three raters independently semi-manually segmented the internal limiting membrane ...

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