Nuclear Medicine

Question 1

Nuclear medicine uses ………… radiation

Answer 1

Gamma

Question 2

Nuclear imaging detects ……….. properties of the human tissue

Answer 2

Functional

Question 3

In nuclear medicine hot spot mean ?

Answer 3

Increased uptake

Increased flow and metabolism

Question 4

In nuclear medicine cold spot mean ?

Answer 4

Decreased uptake

Diminished flow or metabolism

Question 5

Advantages of nuclear medicine imaging ?

Answer 5

Functional
Sensitive 
Quantitated
Very safe 
Minimally invasive
‏Low radiation exposure
Screening
Follow up

Question 6

Disadvantages of nuclear medicine imaging ?

Answer 6

Not widely available
Generally non-specific
Require nuclear medicine instrument (Radiopharm aceuticals)
Higher cost

Question 7

What is the difference between single-photon emission computed tomography (SPECT) and conventional nuclear medicine ?

Answer 7

True 3-D information

Question 8

Differences between Positron emission tomography (PET) and single-photon emission computed tomography (SPECT) ?

Answer 8

(PET) Traces two photons
(SPECT) Traces one

(PET) short half life
(SPECT) long half life

(PET) high resolution
(SPECT) Low resolution

(PET) expensive
(SPECT) chapter

(PET) less available
(SPECT) more available

Question 9

Metabolism of Flurodeoxyglucose (FDG) reflects ?

Answer 9

Rate of cerebral glucose metabolism

Question 10

Metabolism of 15 O2 (water) reflects ?

Answer 10

Cerebral blood flow

Question 11

Metabolism of 18 F (Flurodopa) parallels ?

Answer 11

Dopamine metabolism