Low reflectivity areas appear which color on OCT images?

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Study for the Optical Coherence Tomography C Fundamentals Test. Access multiple choice questions and flashcards with hints and explanations. Get exam-ready in no time!

Multiple Choice

Low reflectivity areas appear which color on OCT images?

Explanation:
In OCT imaging, brightness encodes reflectivity: areas that backscatter a lot light appear bright, while areas that backscatter little light appear dark. Because low reflectivity means almost no backscattered signal, those regions show up as black on the image. High reflectivity shows up as white, and intermediate levels appear gray. Red isn’t used in the standard grayscale OCT display. So low reflectivity areas appear black.

In OCT imaging, brightness encodes reflectivity: areas that backscatter a lot light appear bright, while areas that backscatter little light appear dark. Because low reflectivity means almost no backscattered signal, those regions show up as black on the image. High reflectivity shows up as white, and intermediate levels appear gray. Red isn’t used in the standard grayscale OCT display. So low reflectivity areas appear black.

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