MRI Procedures and Positioning Exam
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of using an MRI localizer sequence?
A. To measure the patient's oxygen saturation
B. To suppress all fat signal
C. To establish anatomical reference images for planning subsequent sequences
D. To determine the patient's blood pressure
Rationale: A localizer provides rapid reference images in one or more planes.
These images are used to prescribe the subsequent diagnostic sequences
accurately.
2. For routine brain MRI, which position is most commonly used?
A. Prone
B. Supine with the head positioned in a dedicated head coil
C. Left lateral decubitus
D. Upright
Rationale: Routine brain MRI is generally performed with the patient supine and
the head positioned within a dedicated head or head/neck coil for appropriate
signal reception and immobilization.
3. What is the main purpose of positioning the patient's head straight in a head
coil?
A. To increase the patient's heart rate
B. To eliminate all susceptibility artifact
,C. To improve anatomical symmetry and facilitate consistent image prescription
D. To shorten the patient's anatomy
Rationale: Proper head alignment helps maintain consistent anatomical
orientation and facilitates accurate planning of axial, sagittal, and coronal images.
4. Which plane is most useful for evaluating the corpus callosum along its long
axis?
A. Axial
B. Coronal
C. Sagittal
D. Oblique axial
Rationale: The corpus callosum has a predominantly anteroposterior orientation,
making sagittal imaging particularly useful for evaluating its structure along its
long axis.
5. For routine axial brain imaging, why are slices commonly prescribed parallel
to a standardized anatomical reference?
A. To eliminate the need for a localizer
B. To produce consistent anatomical coverage and orientation
C. To prevent all patient motion
D. To eliminate RF exposure
Rationale: Standardized slice orientation improves reproducibility and allows
consistent evaluation of brain structures across examinations.
6. Which patient position is commonly used for MRI of the cervical spine?
A. Prone with the head turned sharply
B. Supine with the head supported in a neutral position
C. Standing without a coil
D. Right lateral decubitus with the neck flexed maximally
,Rationale: Cervical spine MRI is commonly performed supine with appropriate
immobilization and a neutral or appropriately supported cervical position.
7. Why is excessive neck flexion generally avoided during routine cervical spine
MRI?
A. It prevents the scanner from producing RF energy
B. It can alter cervical alignment and may make standardized imaging more
difficult
C. It eliminates T2 contrast
D. It increases the static field strength
Rationale: Excessive flexion can alter the natural relationship of cervical structures
and may make consistent positioning and interpretation more difficult.
8. Which coil is specifically designed to provide high-quality signal reception
from the cervical and upper thoracic region?
A. Knee coil
B. Wrist coil
C. Spine/neck or dedicated cervical-region coil
D. Foot coil
Rationale: A dedicated or appropriately configured spine/neck coil provides signal
reception from the cervical region and is selected according to the scanner and
examination protocol.
9. Which position is typically used for routine lumbar spine MRI?
A. Supine
B. Prone
C. Standing
D. Left lateral decubitus
, Rationale: Routine lumbar spine MRI is generally performed supine, with
positioning adjusted as needed for patient comfort and appropriate anatomical
alignment.
10. Why may a cushion be placed beneath the patient's knees during lumbar
spine MRI?
A. To increase the magnetic field strength
B. To eliminate all lumbar curvature
C. To improve comfort and reduce strain associated with maintaining the supine
position
D. To increase RF heating
Rationale: Supporting the knees can improve patient comfort and reduce lower-
back strain during the examination. It does not replace appropriate anatomical
positioning.
11. Which plane is particularly useful for evaluating the lumbar spine in profile?
A. Axial
B. Coronal
C. Sagittal
D. Transverse oblique
Rationale: Sagittal images display the lumbar vertebral bodies, discs, spinal canal,
and alignment in profile and are fundamental to routine lumbar spine evaluation.
12. How should axial lumbar spine images generally be oriented?
A. Randomly through the vertebral bodies
B. According to the anatomy of the disc level or another protocol-defined
anatomical reference
C. Always perpendicular to the patient's skin
D. Always parallel to the floor regardless of anatomy
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of using an MRI localizer sequence?
A. To measure the patient's oxygen saturation
B. To suppress all fat signal
C. To establish anatomical reference images for planning subsequent sequences
D. To determine the patient's blood pressure
Rationale: A localizer provides rapid reference images in one or more planes.
These images are used to prescribe the subsequent diagnostic sequences
accurately.
2. For routine brain MRI, which position is most commonly used?
A. Prone
B. Supine with the head positioned in a dedicated head coil
C. Left lateral decubitus
D. Upright
Rationale: Routine brain MRI is generally performed with the patient supine and
the head positioned within a dedicated head or head/neck coil for appropriate
signal reception and immobilization.
3. What is the main purpose of positioning the patient's head straight in a head
coil?
A. To increase the patient's heart rate
B. To eliminate all susceptibility artifact
,C. To improve anatomical symmetry and facilitate consistent image prescription
D. To shorten the patient's anatomy
Rationale: Proper head alignment helps maintain consistent anatomical
orientation and facilitates accurate planning of axial, sagittal, and coronal images.
4. Which plane is most useful for evaluating the corpus callosum along its long
axis?
A. Axial
B. Coronal
C. Sagittal
D. Oblique axial
Rationale: The corpus callosum has a predominantly anteroposterior orientation,
making sagittal imaging particularly useful for evaluating its structure along its
long axis.
5. For routine axial brain imaging, why are slices commonly prescribed parallel
to a standardized anatomical reference?
A. To eliminate the need for a localizer
B. To produce consistent anatomical coverage and orientation
C. To prevent all patient motion
D. To eliminate RF exposure
Rationale: Standardized slice orientation improves reproducibility and allows
consistent evaluation of brain structures across examinations.
6. Which patient position is commonly used for MRI of the cervical spine?
A. Prone with the head turned sharply
B. Supine with the head supported in a neutral position
C. Standing without a coil
D. Right lateral decubitus with the neck flexed maximally
,Rationale: Cervical spine MRI is commonly performed supine with appropriate
immobilization and a neutral or appropriately supported cervical position.
7. Why is excessive neck flexion generally avoided during routine cervical spine
MRI?
A. It prevents the scanner from producing RF energy
B. It can alter cervical alignment and may make standardized imaging more
difficult
C. It eliminates T2 contrast
D. It increases the static field strength
Rationale: Excessive flexion can alter the natural relationship of cervical structures
and may make consistent positioning and interpretation more difficult.
8. Which coil is specifically designed to provide high-quality signal reception
from the cervical and upper thoracic region?
A. Knee coil
B. Wrist coil
C. Spine/neck or dedicated cervical-region coil
D. Foot coil
Rationale: A dedicated or appropriately configured spine/neck coil provides signal
reception from the cervical region and is selected according to the scanner and
examination protocol.
9. Which position is typically used for routine lumbar spine MRI?
A. Supine
B. Prone
C. Standing
D. Left lateral decubitus
, Rationale: Routine lumbar spine MRI is generally performed supine, with
positioning adjusted as needed for patient comfort and appropriate anatomical
alignment.
10. Why may a cushion be placed beneath the patient's knees during lumbar
spine MRI?
A. To increase the magnetic field strength
B. To eliminate all lumbar curvature
C. To improve comfort and reduce strain associated with maintaining the supine
position
D. To increase RF heating
Rationale: Supporting the knees can improve patient comfort and reduce lower-
back strain during the examination. It does not replace appropriate anatomical
positioning.
11. Which plane is particularly useful for evaluating the lumbar spine in profile?
A. Axial
B. Coronal
C. Sagittal
D. Transverse oblique
Rationale: Sagittal images display the lumbar vertebral bodies, discs, spinal canal,
and alignment in profile and are fundamental to routine lumbar spine evaluation.
12. How should axial lumbar spine images generally be oriented?
A. Randomly through the vertebral bodies
B. According to the anatomy of the disc level or another protocol-defined
anatomical reference
C. Always perpendicular to the patient's skin
D. Always parallel to the floor regardless of anatomy
