advanced imaging digital 2 of 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| In digital, what does kVp control? | penetration (NOT contrast)
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| In digital, what controls contrast? | window width
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| In digital, what controls density? | window level
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| An increase in window level will change density how? | density will increase with increased window level
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| What type of relationship do window width and contrast have? | inverse
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| Frequency (digital) | raw data used to create the image
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| A high contrast image has what kind of frequency? | high
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| A low frequency image will have what kind of contrast? | low
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| Narrow window width produces what type of image? | high contrast, short scale
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| Wide window width produces what kind of image? | low contrast, long scale
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| 12 bit depth produces how many shades of gray? | 4096
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| 12 bit depth produces how many gray levels? | 212
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| In the image file size formula, the X, Y and B each represent what? | X = x-axis pixel matrix size, Y = y-axis pixel matrix size, B = gray scale bit depth
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| What is the image file size formula? | XY(B/8)
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