Computed Tomography Questions with
Accurate Answers
A high variation in pixel values in a homogenous phantom is a measure of _____.
correct answer image noise
CT imaging has excellent ______ because of the narrow beam collimation. correct
answer contrast resolution
CT scanners operate on ____ voltage generation correct answer high frequency
Each CT projection is ____.
1. printed on film
2. stored on the computer
3. displayed on the monitor correct answer stored on the computer
Each CT projection records variations in ____. correct answer mass density and
effective atomic number
Each pixel of information in the CT image contains numerical information in ___
units. correct answer Hounsfield
Each sweep of the source-detector around the body during CT is called a _____.
correct answer translation
Filtered back projection in CT refers to _____. correct answer image
reconstruction
Accurate Answers
A high variation in pixel values in a homogenous phantom is a measure of _____.
correct answer image noise
CT imaging has excellent ______ because of the narrow beam collimation. correct
answer contrast resolution
CT scanners operate on ____ voltage generation correct answer high frequency
Each CT projection is ____.
1. printed on film
2. stored on the computer
3. displayed on the monitor correct answer stored on the computer
Each CT projection records variations in ____. correct answer mass density and
effective atomic number
Each pixel of information in the CT image contains numerical information in ___
units. correct answer Hounsfield
Each sweep of the source-detector around the body during CT is called a _____.
correct answer translation
Filtered back projection in CT refers to _____. correct answer image
reconstruction
