Chapter 12 Quiz

Question 1

Which muscle will have elevated glucose uptake in patients who turn their neck from side to side during FDG uptake?

erector spinae muscle
psoas muscle
scalene muscle
trapezuis muscle

Answer 1

scalene muscle

Question 2

Which transporter protein is critical to glucose transport into skeletal muscle?

GLUT1
GLUT2
GLUT3
GLUT4

Answer 2

GLUT4

Question 3

Which transporter protein is known to have an effect on insulin-medicated glucose uptake in adipose tissue?

GLUT1
GLUT2
GLUT3
GLUT4

Answer 3

GLUT4

Question 4

High-Z materials are defined by the sum of the number of _____in the atoms.

electrons and protons
electrons and neutrons
neutrons and protons
protons only

Answer 4

protons only

Question 5

_______ does not typically cause brown fat uptake to be increased.

caffeine
cold
ephedrine
nicotine

Answer 5

caffeine

Question 6

Improvement in quantification and decreased in respiratory motion during PET/CT scanning may be achieved by _____.

shallow breathing
deep breathing
mid-respiration breath holds
respiratory gating

Answer 6

respiratory gating

Question 7

Motion artifacts in the images are common in PET/CT imaging. Which of the following are examples of other issues that motion can cause in PET/CT imaging?

Errors in SUV calculation
Misregistration of tumor location
Misfusion between PET and CT images
all of the above

Answer 7

all of the above

Question 8

Which of the following is most likely to cause muscle uptake on a PET study?

insulin
radiotherapy
colony-stimulating factors
prosthetics

Answer 8

insulin

Question 9

Extravasation of FDG is most likely to cause which of the following?

Infection
false-positive lymph node
brown fat uptake
muscle uptake

Answer 9

false-positive lymph node

Question 10

Which of the following will assist in decreasing brown fat uptake?

cool uptake rooms
extravasation
warm blankets
contrast media

Answer 10

warm blankets

Question 11

Which factor below can increase muscle update in F-18 fluciclovine imaging?

-dehydrated patient
-IV injection of radiotracer in the left arm
-increased localization time beyond best practice recommendations
-patient fasted only 2hrs prior to the study

Answer 11

increased localization time beyond best practice recommendations

Question 12

In Ga-68 PSMA imaging, what is the best description of the halo artifact?

-a ring that appears above the head due to poor scatter-correction algorithms
-decreased activity visualized on the maximum intensity projection due to inadequate attenuation correction
-a photopenic area located near the kidneys and bladder
-increased activity seen around dense objects such as metal hip replacments

Answer 12

a photopenic area located near the kidneys and bladder