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Chapter 12- Computed Tomography questions with 100% verified answers.
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Chapter 12- Computed Tomography questions with 100% verified answers.
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Chapter 12- Computed Tomographyquestions with 100% verified answers.
A Hounsfield unit: ANS - -is a measurement of density on CT scan.
-compares density value of pixel with that of water.
-is also called a CT number.
If the scanning slice thickness is 5 mm and the table pitch is 2.0,
the resulting table movement per rotation is: ANS - 10 mm
Which method is the most common way to reconstruct
CT scan images? ANS - filtered back-projection
What determines the slice thickness on the CT scanner? ANS - -the pre-patient collimators
-the pre-detector collimators
-the technician's choice
A technologist has just finished scanning a patient.
Which is the best way to magnify the images to show
pathology? ANS - increase the field of view using the raw or scan data
and re-reconstruct the images
What does a slipring assembly do in CT scan? ANS - It allows for helical or spiral scanning.
It makes the table move quickly.
Raw data or scan data is: ANS - used to create more images.
is kept on the scanner for only a short duration.
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