ARRT MRI Mock Registry Questions and Answers 2023|2024 updated Already Graded A
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ARRT MRI Mock Registry
Institution
ARRT MRI Mock Registry
ARRT MRI Mock Registry Questions and
Answers (2022/2023) Already Graded A
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...
ARRT MRI Mock Registry Questions and
Answers (2022/2023) Already Graded A
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 ✔✔VENC
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 ✔✔Decreases
A magnetic vector possesses attributes of both __________ and _____________.
,A. Strength; magnitude
B. Direction; purpose
C. Strength; flow
D. Magnitude; direction ✔✔Magnitude; direction
What element in the body is the principal nucleus utilized in clinical MR imaging?
A. Helium
B. Hydrogen
C. Oxygen
D. Calcium ✔✔Hydrogen
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 ✔✔A 180° pulse followed by a 90°/180° combination
,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 ✔✔Incoherent gradient echo
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 ✔✔Eyes
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 ✔✔A, D and E only
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.
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 ✔✔0.88mm
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