QUESTIONS AND VERIFIED ANSWERS|NEWEST
Question 1
When imaging a geriatric patient, while performing a PCA MRA sequence, what imaging
parameter might the operator adjust?
A. Field of view
B. Presaturation band location
C. Slice thickness
D. VENC
E. Contrast injection rate
CORRECT ANSWER
VENC
Question 2
As the number of phase encodings is increased from 256 to 512, SNR (signal to noise
ratio):
A. Increases
B. Decreases
C. Doubles
D. Does not change
E. Quadruples
CORRECT ANSWER
Decreases
1
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,Question 3
A magnetic vector possesses attributes of both __________ and _____________.
A. Strength; magnitude
B. Direction; purpose
C. Strength; flow
D. Magnitude; direction
CORRECT ANSWER
Magnitude; direction
Question 4
What element in the body is the principal nucleus utilized in clinical MR imaging?
A. Helium
B. Hydrogen
C. Oxygen
D. Calcium
CORRECT ANSWER
Hydrogen
Question 5
Which of the following best describes an IR sequence?
A. A 180° pulse followed by a 90°/180° combination
B. A 90° pulse followed by a 180° pulse
C. A train of gradient echoes
D. A train of spin echoes
CORRECT ANSWER
2
@THE STUDY VAULT
, A 180° pulse followed by a 90°/180° combination
Question 6
Gradient echo sequences requiring high signal from fluid are known as all of the following
EXCEPT:
A. T2* gradient echo
B. Steady-state gradient echo
C. Coherent gradient echo
D. Incoherent gradient echo
CORRECT ANSWER
Incoherent gradient echo
Question 7
The medial and lateral rectus muscles are located in the:
A. Ears
B. Posterior pelvic region
C. Proximal calves
D. Eyes
E. Superior shoulder regions
F. Soft tissues of the neck
CORRECT ANSWER
Eyes
Question 8
3
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, Reducing the number of lines filled in k-space will produce an image:
A. With a decrease in spatial resolution
B. With a increase in spatial resolution
C. With an decrease in overall SNR
D. With an increase in overall SNR
E. With a reduced overall scan time
F. B, C and E only
G. A, D and E only
CORRECT ANSWER
A, D and E only
Question 9
Reducing the number of lines filled in k-space reduces the number of phase encoding
steps, resulting in shorter scan time, an increase in overall SNR, but a decrease in spatial
resolution.
Question 10
The smallest object that can be resolved in an image acquired with a 24cm FOV and a 272
x 272 matrix is _________ mm.
A. 0.76mm
B. 0.88mm
C. 0.93mm
D. 1.13mm
E. 1.24mm
CORRECT ANSWER
0.88mm
4
@THE STUDY VAULT
Question 1
When imaging a geriatric patient, while performing a PCA MRA sequence, what imaging
parameter might the operator adjust?
A. Field of view
B. Presaturation band location
C. Slice thickness
D. VENC
E. Contrast injection rate
CORRECT ANSWER
VENC
Question 2
As the number of phase encodings is increased from 256 to 512, SNR (signal to noise
ratio):
A. Increases
B. Decreases
C. Doubles
D. Does not change
E. Quadruples
CORRECT ANSWER
Decreases
1
@THE STUDY VAULT
,Question 3
A magnetic vector possesses attributes of both __________ and _____________.
A. Strength; magnitude
B. Direction; purpose
C. Strength; flow
D. Magnitude; direction
CORRECT ANSWER
Magnitude; direction
Question 4
What element in the body is the principal nucleus utilized in clinical MR imaging?
A. Helium
B. Hydrogen
C. Oxygen
D. Calcium
CORRECT ANSWER
Hydrogen
Question 5
Which of the following best describes an IR sequence?
A. A 180° pulse followed by a 90°/180° combination
B. A 90° pulse followed by a 180° pulse
C. A train of gradient echoes
D. A train of spin echoes
CORRECT ANSWER
2
@THE STUDY VAULT
, A 180° pulse followed by a 90°/180° combination
Question 6
Gradient echo sequences requiring high signal from fluid are known as all of the following
EXCEPT:
A. T2* gradient echo
B. Steady-state gradient echo
C. Coherent gradient echo
D. Incoherent gradient echo
CORRECT ANSWER
Incoherent gradient echo
Question 7
The medial and lateral rectus muscles are located in the:
A. Ears
B. Posterior pelvic region
C. Proximal calves
D. Eyes
E. Superior shoulder regions
F. Soft tissues of the neck
CORRECT ANSWER
Eyes
Question 8
3
@THE STUDY VAULT
, Reducing the number of lines filled in k-space will produce an image:
A. With a decrease in spatial resolution
B. With a increase in spatial resolution
C. With an decrease in overall SNR
D. With an increase in overall SNR
E. With a reduced overall scan time
F. B, C and E only
G. A, D and E only
CORRECT ANSWER
A, D and E only
Question 9
Reducing the number of lines filled in k-space reduces the number of phase encoding
steps, resulting in shorter scan time, an increase in overall SNR, but a decrease in spatial
resolution.
Question 10
The smallest object that can be resolved in an image acquired with a 24cm FOV and a 272
x 272 matrix is _________ mm.
A. 0.76mm
B. 0.88mm
C. 0.93mm
D. 1.13mm
E. 1.24mm
CORRECT ANSWER
0.88mm
4
@THE STUDY VAULT
