Advanced PET Imaging:

Question 1

Positron emitters are:

A) proton-deficient isotopes
B) neutron-rich isotopes
C) neutron-deficient isotopes
D) electron-rich isotopes

Answer 1

C) neutron-deficient isotopes

Question 2

The pH of [18F] FDG is:

A) between 2.0 and 4.5
B) between 4.5 and 7.5
C) between 7.5 and 9.0
D) between 9.0 and 11.5

Answer 2

B) between 4.5 and 7.5

Question 3

Which of the following shields is better to use for PET agents than lead?

A) air
B) aluminum
C) depleted uranium
D) tungsten

Answer 3

D) tungsten

Question 4

Which of the following PET crystals has the highest density?

A) LSO
B) GSO
C) NaI (Tl)
D) BGO

Answer 4

A) LSO

Question 5

To reduce the possibility of brown fat artifacts in [18F] FDG PET imaging one can use what to reduce the effect of the possible artifact?

A) water (ask the pt. to drink a cold cup of water prior ro imaging)
B) a warm blanket (for the pts. shoulders prior to imaging)
C) blood transfusion (give the pt. a transfusion of blood prior to imaging)
D) exercise (ask the pt. to exercise his or her arms prior to imaging)

Answer 5

B) a warm blanket (for the pts. shoulders prior to imaging)

Question 6

Which of the following PET agents is best for imaging Parkinson’s disease?

A) 15O
B) [18F] FDG
C) L-[18F] DOPA
D) [13N] Ammonia

Answer 6

C) L-[18F] DOPA