Contrast is adjusted by windowing,changing window width and window level.Window level determines the:
A) number of gray levels displayed.
B) midpoint of the gray range.
C) size of the field of view.
D) slice thickness.
Correct Answer:
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Q1: Dose in CT is considered to be:
A)
Q2: Which two factors affect image quality in
Q3: CT is able to differentiate between tissues
Q4: An array of numbers arranged in a
Q5: The most significant geometric factor that contributes
Q7: Which generation of CT scanners uses a
Q8: CT detectors are most commonly _ detectors.
A)
Q9: Contrast is adjusted by windowing,changing window width
Q10: The measured x-ray transmission values are called:
A)
Q11: The CT system's ability to freeze any
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