CONTINUING EDUCATION TEST: Small-Animal PET: What Is It, and
Why Do We Need It?
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of Radiation Control.
1.
Which of the following statements about
small-animal PET systems is correct?
A. There are approximately 140 small-animal PET
systems in operation in the world.
B. All these systems have been developed in-house
by a university.
C. The first small-animal PET system was developed
in the early 1980s.
D. Small-animal PET plays an important role in new
drug development.
2.
The diameter of the typical small-animal PET
detector ring is in the range of…
A.
B.
C.
D.
5–10 cm (2–4 in).
25–35 cm (10–14 in).
13–18 cm (5–7 in).
45–50 cm (18–20 in).
4.
In general, how does the sensitivity of a smallanimal PET system compare with that of a conventional
human PET system?
A. The sensitivity of any small-animal PET system
is approximately 3 times greater than that of a
conventional PET system.
B. The sensitivity of a small-animal PET system
is approximately one third that of a human
PET system because of the small diameter of the
detector ring.
C. The sensitivity of a small-animal PET system
depends on its detector ring configuration and
may be higher or lower than that of typical
human PET systems.
D. The sensitivity of a small-animal PET system is
not important, because radiation dose is a less
important issue for animals.
5.
What is the main advantage of small-animal PET
over human PET in imaging mice and rats?
3.
In general, how does the resolution of
a small-animal PET system compare with that of
a conventional human PET system?
A. The resolutions of small-animal PET and human
PET are about the same.
B. The resolution of a typical small-animal
PET system is close to 1 mm, compared
with the 5-mm resolution of a typical
human PET system.
C. The spatial resolution of small-animal PET is
slightly worse than that of human PET because
of the inherent design difficulties of a system for
imaging small animals (crystal shape and oblique
angle detection path of the photons).
D. It is not possible to design a small-animal PET
system with resolution similar to that of a human
PET system.
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A. It allows the study of smaller structures of the
imaged subject.
B. A small-animal PET system takes less space.
C. A single animal can be studied multiple times over
a long period.
D. The cost of a small-animal PET system is negligible.
6.
Which of the following statements about
small-animal PET is correct?
A. Scatter and attenuation corrections are not needed
for quantitative imaging.
B. Scatter and attenuation are less significant problems
than for human PET.
C. Scatter and attenuation corrections cannot be
performed.
D. Scatter and attenuation correction techniques are
completely different from those used in human PET.
Journal of Nuclear Medicine Technology • Vol. 40 • No. 3 • September 2012
7.
9.
The total blood volume of a small animal
to be imaged is estimated to be 7.5 mL. The volume
of the dose of radiopharmaceutical should be
less than…
A.
B.
C.
D.
What is the best realistic spatial resolution that a
small-animal PET system may achieve?
A.
B.
C.
D.
0.25 mL.
1 mL.
0.75 mL.
2.5 mL.
10. Among the statements below, which is the most accurate
description of the role of PET for small-animal imaging?
8.
For which type of disease is small-animal PET
being mostly used at this time?
A.
B.
C.
D.
0.1–0.5 mm.
1.5–4 mm.
0.4–1.0 mm.
4–6 mm.
Cardiac disease.
Neurologic disease.
Oncologic disease.
Epidemic disease.
A. It operates independently. Information from other
imaging modalities is not useful.
B. It provides in vivo functional molecular imaging
information on the animal being studied with
very high sensitivity.
C. It provides more important information than any
other animal imaging modalities.
D. It cannot be operated without anatomic information
from small-animal CT or MRI.
CONTINUING EDUCATION TEST
Small-Animal PET: What Is It, and Why Do We Need It?
Answer Sheet
1.
2.
3.
4.
5.
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
6.
7.
8.
9.
10.
Name
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
Title
Hospital or Facility
Dept.
Street Address
City
Membership No.
State
Fee:
Zip
Phone (
)
Nonmember–check enclosed for $20 per test
Member–check enclosed for $5 per test
Today’s Date
Return a copy of this answer sheet no later than September 30, 2014, to:
Education Coordinator, Journal of Nuclear Medicine Technology, The Society of Nuclear Medicine and Molecular Imaging,
1850 Samuel Morse Dr., Reston, VA 20190.
v40, n3
9/12
FAX: 703-708-9013.
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CE Test and Answer Sheet
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