On OCT, subretinal fluid (CSR fluid) is depicted as which color?

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Enhance your understanding of Optical Coherence Tomography C fundamentals. Study with comprehensive flashcards and multiple choice questions, each provided with hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

On OCT, subretinal fluid (CSR fluid) is depicted as which color?

Explanation:
Subretinal fluid shows up as a dark, hypo-reflective space on OCT. OCT images encode reflectivity as brightness: highly reflective structures appear bright (white), while areas with little backscattering, like fluid, appear dark. So the fluid between the retina and the RPE is seen as a black region. Gray would be intermediate reflectivity, and blue isn’t used in the standard grayscale OCT representation.

Subretinal fluid shows up as a dark, hypo-reflective space on OCT. OCT images encode reflectivity as brightness: highly reflective structures appear bright (white), while areas with little backscattering, like fluid, appear dark. So the fluid between the retina and the RPE is seen as a black region. Gray would be intermediate reflectivity, and blue isn’t used in the standard grayscale OCT representation.

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