Question

A CT artifact is _________.

1) a parameter used to control the brightness of the image
2) always a reason to call for repair of the CT scanner
3) used to time the injection of contrast media
4) an anomaly in the CT image

Answer 1

A CT artifact is an anomaly in the CT image. It refers to any unexpected or unwanted structure or distortion that appears in a CT scan.

Step-by-step explanation:

A CT artifact is an anomaly in the CT image. It refers to any unexpected or unwanted structure or distortion that appears in a computed tomography (CT) scan. These artifacts can result from various factors such as patient motion, equipment malfunctions, or image reconstruction errors. Examples of CT artifacts include streaking, blurring, and metal artifacts.