1. Swept Source Optical Coherence Tomography Angiography in Small Choroidal Melanomas and Choroidal Nevi

    Swept Source Optical Coherence Tomography Angiography in Small Choroidal Melanomas and Choroidal Nevi

    Purpose: To evaluate the use of swept source optical coherence tomography angiography (SS-OCTA) to detect distinct vascular features in small choroidal melanomas and choroidal nevi. Methods: Patients with a choroidal nevus or a treatment-naïve choroidal melanoma were imaged with color fundus photography, ultrasound and SS-OCTA (12x12mm). High-risk features including overlying fluid, orange pigment, shaggy photoreceptors, acoustic hollowness, depth >2mm, and basal diameter >5mm were assessed. OCTA vascular markers included: choroidal vessel visualization, choroidal vessel depth, and choriocapillaris flow signal, assessed qualitatively by comparison to surrounding, unaffected choriocapillaris. Results: Twenty-nine lesions were included in this study, 7 flat choroidal nevi ...

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