What Happens to a CT Image When the WL Moves

question 29

Multiple Choice

What happens to a CT image when the WL moves toward the lower CT numbers?

• A) Appears darker
• B) Appears white
• C) Longer gray scale
• D) Shorter gray scale

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Definitions:

Advancing Age

The process of getting older, associated with physical, psychological, and social changes.

Visual Acuity

The clarity or sharpness of vision, typically assessed with a Snellen chart to determine one's ability to see objects at specified distances.

Visual Impairment

A reduction in one's ability to see that cannot be corrected fully with glasses or contact lenses.

Blindness

The lack of visual perception due to physiological or neurological factors.