The grainy appearance of a CT image that is due to the random variations of CT numbers is

Question

Quizplus · Accepted Answer

Noise in a CT image refers to the random variations in CT numbers that give the image a grainy appearance. Spatial resolution relates to the ability of the imaging system to distinguish between small objects that are close together, and contrast resolution refers to the ability to distinguish between differences in intensity in an image.

The Grainy Appearance of a CT Image That Is Due