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Questions and Answers
What is the purpose of windowing in a CT image?
What is the purpose of windowing in a CT image?
- To limit the number of shades of gray to optimize viewing by the human eye (correct)
- To adjust the size of the CT image on the computer screen
- To increase the number of shades of gray for a more detailed image
- To compress the grayscale to enhance contrast
How does window width (WW) influence CT image presentation?
How does window width (WW) influence CT image presentation?
- It adjusts the size of the CT image
- It artificially defines the number of shades of grey presented to the viewer (correct)
- It controls the brightness of the CT image
- It increases the contrast in the CT image
What is the role of window level (WL) in a CT image?
What is the role of window level (WL) in a CT image?
- It controls the brightness of the CT image (correct)
- It adjusts the size of the CT image on the computer screen
- It enhances the resolution of the CT image
- It artificially defines the number of shades of grey presented to the viewer
Why can't a CT image display all 5,000–10,000 possible shades of gray?
Why can't a CT image display all 5,000–10,000 possible shades of gray?
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When is windowing typically performed in relation to a CT image?
When is windowing typically performed in relation to a CT image?
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What aspect of a CT image does windowing control?
What aspect of a CT image does windowing control?
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