Exam category: Image Production → Image Acquisition & Evaluation
Why it matters: Brightness, contrast, resolution, distortion, and noise are the five things you're actually judging when you look at a finished image, and the registry tests each one as both a definition and a cause-and-effect relationship.
A good-quality image accurately represents the anatomic area of interest, and it is judged on five characteristics: brightness, contrast, spatial resolution, distortion, and noise.
kVp, mAs, SID and filtration are exposure factors — they influence quality but are not quality characteristics. Pixel pitch, fill factor and bit depth are detector parameters. Anode angle, focal spot and grid ratio are equipment and geometry factors. The five above describe the finished image itself; everything else describes what produced it.
(Evaluating the finished image — QC testing, artifacts, saturation, and markers — is the Image evaluation, artifacts & QC module. This one is the five judgments themselves.)
Answer this to keep going. 10 more sections unlock below.
A student is listing what they judge on a finished image, not what produced it. Which item belongs on that list?
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