A ____ artifact is caused by motion.
A)beam-hardening
B)ring
C)star
D)streak

Question

Quizplus · Accepted Answer

A streak artifact is caused by motion. This type of artifact appears as a streak that obscures or distorts the image, usually caused by patient movement during scanning. Beam-hardening artifacts are caused by photons being absorbed at different rates as they pass through different materials, causing streaks or dark bands. Ring artifacts appear as circles or arcs of varying intensity and are usually caused by malfunctions in the detector. Star artifacts typically appear as bright lines extending from areas of intense brightness and are caused by high voltage or a malfunctioning detector.

A ____ Artifact Is Caused by Motion