PET AND CT STUDY GUIDE WITH COMPLETE SOLUTIONSPET AND CT STUDY GUIDE WITH COMPLETE SOLUTIONSPET AND CT STUDY GUIDE WITH COMPLETE SOLUTIONSPET AND CT STUDY GUIDE WITH COMPLETE SOLUTIONS
What does PET stand for? - ANSWER-Positron Emission Tomography
What is F18 FDG chemically similar to? - ANSWER...
PET AND CT STUDY GUIDE WITH
COMPLETE SOLUTIONS
What does PET stand for? - ANSWER-Positron Emission Tomography
What is F18 FDG chemically similar to? - ANSWER-Glucose
What are the basic methods of attenuation correction for PET imaging? - ANSWER-
Transmission scan & Higher-resolution transracial CT scan
What is the formula to calculate CT numbers? - ANSWER-HUy = uy- u water/ u water
*u= linear coefficient
Which radiology modality incorporates functional imaging? - ANSWER-CT
What is functional imaging? - ANSWER-Used to align anatomic image with PET & uses
an attenuation correction map
What is BGO? - ANSWER-Bismuth Germanate; slow scintillator
What is a true event in PET? - ANSWER-When annihilation gamma rays strike two
detectors
What is a random event in PET? - ANSWER-When two different events happen and the
same time and strike at the same time
What is a scatter event in PET? - ANSWER-When one event with a lower energy
photon strike the detectors
What is a coincidence event? - ANSWER-two events are produced by the annihilation
process
What does daily QC look like on a PET scanner? - ANSWER-Blank scan, Uniform
cylinder, and Gain adjustment PMT baseline check
What CT QC is performed daily? - ANSWER-Tube warm-ip and HU Test with a water
filled phantom
What is a scout? - ANSWER-It is a localizer scan usually taken at 90 and 0 degrees in
order to define the CT ROI parameters
What replaces a PMT in a CT scanner? - ANSWER-photodiode
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