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adv img digital 2

advanced imaging digital 2 of 3

QuestionAnswer
In digital, what does kVp control? penetration (NOT contrast)
In digital, what controls contrast? window width
In digital, what controls density? window level
An increase in window level will change density how? density will increase with increased window level
What type of relationship do window width and contrast have? inverse
Frequency (digital) raw data used to create the image
A high contrast image has what kind of frequency? high
A low frequency image will have what kind of contrast? low
Narrow window width produces what type of image? high contrast, short scale
Wide window width produces what kind of image? low contrast, long scale
12 bit depth produces how many shades of gray? 4096
12 bit depth produces how many gray levels? 212
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
What is the image file size formula? XY(B/8)
Created by: annaluz87