Podcast
Questions and Answers
What does window level indicate in a CT image?
What does window level indicate in a CT image?
- The total range of values displayed
- The inherent contrast of the image
- The center value of the range displayed (correct)
- The brightness of the image (correct)
How does window width affect a CT image?
How does window width affect a CT image?
- It adjusts the size of the displayed image
- It determines the pixel density
- It increases the image resolution
- It determines the contrast of the image (correct)
What effect does a narrow window width have on a CT image?
What effect does a narrow window width have on a CT image?
- Enhances inherent contrast (correct)
- Reduces the amount of detail visible
- Decreases brightness
- Increases the total range of values
Which statement is true regarding the relationship between window level and window width?
Which statement is true regarding the relationship between window level and window width?
What does increasing the window width do to a CT image?
What does increasing the window width do to a CT image?
Flashcards
Window Level
Window Level
The CT number selected for the center of the displayed range of values in a CT image.
Window Width
Window Width
The total range of CT numbers displayed in a CT image.
Narrow Window Width
Narrow Window Width
A small range of CT numbers displayed, resulting in high contrast.
How does Window Width affect contrast?
How does Window Width affect contrast?
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How does Window Level affect brightness?
How does Window Level affect brightness?
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Study Notes
Window Level and Window Width in CT Imaging
- Window level is the CT number selected for the center of the displayed image's numerical range.
- Window width is the total range of values selected.
- Window width directly affects contrast.
- A narrower window width improves inherent image contrast.
- Window level controls display brightness.
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