ARRT MRI Mock Registry Top exam questions with
completely verified answers graded A+. 2025/2026
Which of the following best describes an EPI 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 A train of gradient echoes
In a contrast enhanced MR angiography of the abdominal arteries, the IV
gadolinium would enhance in which order?
A. Superior mesenteric, inferior mesenteric, celiac, renal
B. Inferior mesenteric, superior mesenteric, renal, celiac
C. Celiac, superior mesenteric, inferior mesenteric, renal
D. Celiac, superior mesenteric, renal, inferior mesenteric - correct answer
Celiac, superior mesenteric, renal, inferior mesenteric
When imaging the female pelvis, the most optimal view for evaluation of the
uterus is the:
A. Axial
B. Coronal
C. Sagittal
D. None of the above - correct answer Sagittal
Another term used for "fever" is:
A. Hypothermia
B. Apnea
,C. Dystonia
D. Febrile - correct answer Febrile
When parallel imaging techniques are utilized, a low resolution
__________ is acquired prior to the acquisition.
A. Geometric accuracy pulse
B. Calibration scan
C. Presaturation pulse
D. Contrast test bolus - correct answer Calibration scan
Reducing the flip angle yields images with what change in image contrast?
A. More T2 information
B. Less T2 information
C. More T1 information
D. Less T1 information
E. None of the above - correct answer Less T1 information
An adverse reaction or complication caused by treatment from a healthcare
professional is called:
A. Anaphylactic
B. Nosocomial
C. Iatrogenic
D. Idiopathic - correct answer Iatrogenic
Acquiring a bit more than half the phase k-space samples, then
interpolating the data with zeroes for the remaining half is a technique
known as:
,A. Half Fourier
B. Fast spin echo
C. Zero Fill
D. Spoiled Gradient Echo
E. All of the above
F. A, C and/or D only
G. A and/or C only - correct answer A and/or C only
What protocol would be selected to rule out islet cell tumor?
A. Pelvic floor laxity
B. Liver for iron
C. Adrenal glands with In/Out phase images
D. Pancreas
E. Soft tissue neck - correct answer Pancreas
All of the following would aid in reducing scan time EXCEPT:
A. Increasing parallel imaging factor
B. Reduction in ETL
C. Reduction in NEX
D. Utilizing the coarsest matrix possible
E. Enabling half-fourier option
F. Reducing TR - correct answer Reduction in ETL
Which of the following is NOT affected by changing the slice thickness?
A. The image resolution
, B. The signal-to-noise ratio
C. The anatomical coverage
D. The T2 contrast - correct answer The T2 contrast
In the TMJ's, the articular disc lies between what two anatomical
structures?
A. External auditory meatus and mandibular condyle
B. Pudendal nerve and mandibular condyle
C. Acetabulum and mandibular condyle
D. Mandibular fossa and mandibular condyle - correct answer
Mandibular fossa and mandibular condyle
Active shielding can be defined as:
A. Copper lining in the walls of the scanner room
B. Performing robust prescan measurements for the purpose of field
homogeneity
C. Steel lining in the walls of the scanner room
D. Superconducting windings within the MR scanner, reducing the fringe
magnetic field
E. Monthly adjustments made to the magnetic field for the purpose of field
uniformity - correct answer Superconducting windings within the MR
scanner, reducing the fringe magnetic field
In a dual contrast spin echo sequence with echo times of 25ms and 90ms,
the second echo image has __________ than the first echo image
I. More T2 contrast
II. Lower signal-to-noise ratio
III. More T1 contrast - correct answer I. More T2 contrast
completely verified answers graded A+. 2025/2026
Which of the following best describes an EPI 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 A train of gradient echoes
In a contrast enhanced MR angiography of the abdominal arteries, the IV
gadolinium would enhance in which order?
A. Superior mesenteric, inferior mesenteric, celiac, renal
B. Inferior mesenteric, superior mesenteric, renal, celiac
C. Celiac, superior mesenteric, inferior mesenteric, renal
D. Celiac, superior mesenteric, renal, inferior mesenteric - correct answer
Celiac, superior mesenteric, renal, inferior mesenteric
When imaging the female pelvis, the most optimal view for evaluation of the
uterus is the:
A. Axial
B. Coronal
C. Sagittal
D. None of the above - correct answer Sagittal
Another term used for "fever" is:
A. Hypothermia
B. Apnea
,C. Dystonia
D. Febrile - correct answer Febrile
When parallel imaging techniques are utilized, a low resolution
__________ is acquired prior to the acquisition.
A. Geometric accuracy pulse
B. Calibration scan
C. Presaturation pulse
D. Contrast test bolus - correct answer Calibration scan
Reducing the flip angle yields images with what change in image contrast?
A. More T2 information
B. Less T2 information
C. More T1 information
D. Less T1 information
E. None of the above - correct answer Less T1 information
An adverse reaction or complication caused by treatment from a healthcare
professional is called:
A. Anaphylactic
B. Nosocomial
C. Iatrogenic
D. Idiopathic - correct answer Iatrogenic
Acquiring a bit more than half the phase k-space samples, then
interpolating the data with zeroes for the remaining half is a technique
known as:
,A. Half Fourier
B. Fast spin echo
C. Zero Fill
D. Spoiled Gradient Echo
E. All of the above
F. A, C and/or D only
G. A and/or C only - correct answer A and/or C only
What protocol would be selected to rule out islet cell tumor?
A. Pelvic floor laxity
B. Liver for iron
C. Adrenal glands with In/Out phase images
D. Pancreas
E. Soft tissue neck - correct answer Pancreas
All of the following would aid in reducing scan time EXCEPT:
A. Increasing parallel imaging factor
B. Reduction in ETL
C. Reduction in NEX
D. Utilizing the coarsest matrix possible
E. Enabling half-fourier option
F. Reducing TR - correct answer Reduction in ETL
Which of the following is NOT affected by changing the slice thickness?
A. The image resolution
, B. The signal-to-noise ratio
C. The anatomical coverage
D. The T2 contrast - correct answer The T2 contrast
In the TMJ's, the articular disc lies between what two anatomical
structures?
A. External auditory meatus and mandibular condyle
B. Pudendal nerve and mandibular condyle
C. Acetabulum and mandibular condyle
D. Mandibular fossa and mandibular condyle - correct answer
Mandibular fossa and mandibular condyle
Active shielding can be defined as:
A. Copper lining in the walls of the scanner room
B. Performing robust prescan measurements for the purpose of field
homogeneity
C. Steel lining in the walls of the scanner room
D. Superconducting windings within the MR scanner, reducing the fringe
magnetic field
E. Monthly adjustments made to the magnetic field for the purpose of field
uniformity - correct answer Superconducting windings within the MR
scanner, reducing the fringe magnetic field
In a dual contrast spin echo sequence with echo times of 25ms and 90ms,
the second echo image has __________ than the first echo image
I. More T2 contrast
II. Lower signal-to-noise ratio
III. More T1 contrast - correct answer I. More T2 contrast
