Computed Tomography (Merrill's Ch 25)
Qs and As
Arbitrary numbers used for image display based on various shades of gray is the definition of which of
the following? - correct answer ✔✔window
Scan parameters that are selected at the operator's console include which of the following?
1) slice thickness
2) table index
3) reconstruction algorithm - correct answer ✔✔1, 2, 3
Which of the following is not a factor affecting image quality? - correct answer ✔✔density
Which of the following is not one of the three major components of the CT scanner? - correct answer
✔✔CRT
The CT technologist controls which of the following factors of image quality?
1) scantime
2) slice thickness
3) patient instructions - correct answer ✔✔1, 2 ,3
CT was first demonstrated successfully in _____. - correct answer ✔✔1970s
Most CT x-ray tubes can handle about _____ heat units. - correct answer ✔✔8 million
Which of the following describes a third generation CT scanner? - correct answer ✔✔rotation/rotation
movement
Qs and As
Arbitrary numbers used for image display based on various shades of gray is the definition of which of
the following? - correct answer ✔✔window
Scan parameters that are selected at the operator's console include which of the following?
1) slice thickness
2) table index
3) reconstruction algorithm - correct answer ✔✔1, 2, 3
Which of the following is not a factor affecting image quality? - correct answer ✔✔density
Which of the following is not one of the three major components of the CT scanner? - correct answer
✔✔CRT
The CT technologist controls which of the following factors of image quality?
1) scantime
2) slice thickness
3) patient instructions - correct answer ✔✔1, 2 ,3
CT was first demonstrated successfully in _____. - correct answer ✔✔1970s
Most CT x-ray tubes can handle about _____ heat units. - correct answer ✔✔8 million
Which of the following describes a third generation CT scanner? - correct answer ✔✔rotation/rotation
movement
