Grab Bag (q banks) Flashcards
RF system is malfunctioing. RF pulse transmits without a bandwith, what is the most likely outcome
your slice selection will be diminishingly thin.
What is the difference between 2D and 3D MR imaging sequences?
3D imaging uses two phase encoding direction (in plane and through plane). 2D only has one phase encoding direction. The acquired images can be reformatted in any plane without loss of resolution
F-18 decays to O-18 most commonly by which method of radioactive decay?
Beta positive decay
A patient receives I-131 ablation for Grave’s. What happens to the patient’s urine.
Excreted and doesn’t need to be tested
What type of detector is a dose calibrator?
gas-filled detector
how are geiger mueller counters used
detect low radiation
What does the “m” in Tc-99m stand for?
metastable
When must medical events be reported to the NRC
verbally within 1 day, written in 15 days
What type of detector is a Geiger Mueller?
Gas-filled detector
effective half life equation
1/Te = 1/Tp+1/Tb