MRSO Exam Question and Answer 2026 |
Comprehensive Review with Detailed
Rationales | Grade A+
• MR Safety Officer responsibilities -✓✓The role of MRSO is often carried out by the
senior
Radiographer (in the USA this will generally be an MR technologist), but other suitably
trained individuals could also fill this role. Multiple MRSOs could be appointed, provided
only one is in charge at a given time. His/her responsibilities
include the following:
To be readily accessible and available (eg, to the operators of the MR system) at all
times that the MR facility is accessible.
Ensuring that proper policies and procedures for day-today MR safety are enforced.
Developing, documenting, and introducing, in conjunction with and under the authority
of the MRMD/MRRD, safe working procedures for the MR environment.
Ensuring that adequate written safety procedures, work instructions, emergency
procedures, and operating instructions are issued to all concerned after full consultation
with the MRMD/MRRD (and, if/as needed, the MRSE).
Ensuring that appropriate measures for minimizing risks to health that arise from the
use of or exposure to the MR equipment, as per the direction of the MRMD/MRRD, are
implemented and monitored.
Managing hazards posed by the MR equipment, and monitoring the measures taken to
protect against such hazards.
Ensuring that all Heads of Departments and senior medical staff members who are
responsible for personnel who will be involved with the MR system are informed of the
formal procedures for training and authorization.
Ensuring that medical, technical, nursing, and all other relevant staff groups (including
ancillary workers) who may be exposed to the MR environment are educated
appropriately on a regular basis as to the safety requirements
and updated as necessary.
Maintaining records of the personnel who have been educated appropriately as to the
safety requirements.
Consulting the MRMD/MRRD (and/or the MRSE)
when further adv
, • Magnetophosphenes -✓✓A Sensory Symptom where the subject sees flashing lights
caused by an induced electrical current in the retina when exposed to a strong magnetic
field.
• Bo -✓✓Static magnetic field direction
• dBo/Dx -✓✓Gradient magnetic field - Change in Magnetic Field / change in distance
• American Board of Magnetic Resonance Safety ABMRS provides MR Safety
Credentialing for: -✓✓MR Medical Director (MRMD)
MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
• The MRMD certification is designed for: -✓✓physicians, such as radiologists, who
have responsibility for the safe administration of MR exams.
• The MRSO certification is designed for: -✓✓those with a supervisory MRI safety role
at the point of care. While not exclusive to technologists, this role is most frequently be
filled by an MR technologist.
• The MRSE certification is designed for: -✓✓those in an expert, technical consulting
role who may help determine the safety of complex conditions. While not exclusive to
MR medical physicists, this role is most frequently filled by a
medical physicist.
• The following types of injury can and have occurred during the MRI scanning process:
(8) -✓✓1. "Missile effect" or "projectile" injury in which ferromagnetic objects (those
having magnetic properties) such as ink pens,
wheelchairs, and oxygen canisters are pulled into the MRI scanner at rapid velocity.
2. Injury related to dislodged ferromagnetic implants such as aneurysm clips, pins in
joints, and drug infusion devices.
3. Burns from objects that may heat during the MRI process, such as wires (including
lead wires for both implants and
external devices) and surgical staples, or from the patient's body touching the inside
walls (the bore) of the MRI scanner
during the scan. (2)
4. Injury or complication related to equipment or device malfunction or failure caused by
the magnetic field. For example, battery-powered devices (laryngoscopes, microinfusion
pumps, monitors, etc.) can suddenly fail to operate; some
programmable infusion pumps may perform erratically; (3) and pacemakers and
implantable defibrillators may not behave as programmed.
5. Injury or complication due to failure to attend to patient support systems during the
MRI. This is especially true for patient
Comprehensive Review with Detailed
Rationales | Grade A+
• MR Safety Officer responsibilities -✓✓The role of MRSO is often carried out by the
senior
Radiographer (in the USA this will generally be an MR technologist), but other suitably
trained individuals could also fill this role. Multiple MRSOs could be appointed, provided
only one is in charge at a given time. His/her responsibilities
include the following:
To be readily accessible and available (eg, to the operators of the MR system) at all
times that the MR facility is accessible.
Ensuring that proper policies and procedures for day-today MR safety are enforced.
Developing, documenting, and introducing, in conjunction with and under the authority
of the MRMD/MRRD, safe working procedures for the MR environment.
Ensuring that adequate written safety procedures, work instructions, emergency
procedures, and operating instructions are issued to all concerned after full consultation
with the MRMD/MRRD (and, if/as needed, the MRSE).
Ensuring that appropriate measures for minimizing risks to health that arise from the
use of or exposure to the MR equipment, as per the direction of the MRMD/MRRD, are
implemented and monitored.
Managing hazards posed by the MR equipment, and monitoring the measures taken to
protect against such hazards.
Ensuring that all Heads of Departments and senior medical staff members who are
responsible for personnel who will be involved with the MR system are informed of the
formal procedures for training and authorization.
Ensuring that medical, technical, nursing, and all other relevant staff groups (including
ancillary workers) who may be exposed to the MR environment are educated
appropriately on a regular basis as to the safety requirements
and updated as necessary.
Maintaining records of the personnel who have been educated appropriately as to the
safety requirements.
Consulting the MRMD/MRRD (and/or the MRSE)
when further adv
, • Magnetophosphenes -✓✓A Sensory Symptom where the subject sees flashing lights
caused by an induced electrical current in the retina when exposed to a strong magnetic
field.
• Bo -✓✓Static magnetic field direction
• dBo/Dx -✓✓Gradient magnetic field - Change in Magnetic Field / change in distance
• American Board of Magnetic Resonance Safety ABMRS provides MR Safety
Credentialing for: -✓✓MR Medical Director (MRMD)
MR Safety Officers (MRSO)
MR Safety Experts (MRSE)
• The MRMD certification is designed for: -✓✓physicians, such as radiologists, who
have responsibility for the safe administration of MR exams.
• The MRSO certification is designed for: -✓✓those with a supervisory MRI safety role
at the point of care. While not exclusive to technologists, this role is most frequently be
filled by an MR technologist.
• The MRSE certification is designed for: -✓✓those in an expert, technical consulting
role who may help determine the safety of complex conditions. While not exclusive to
MR medical physicists, this role is most frequently filled by a
medical physicist.
• The following types of injury can and have occurred during the MRI scanning process:
(8) -✓✓1. "Missile effect" or "projectile" injury in which ferromagnetic objects (those
having magnetic properties) such as ink pens,
wheelchairs, and oxygen canisters are pulled into the MRI scanner at rapid velocity.
2. Injury related to dislodged ferromagnetic implants such as aneurysm clips, pins in
joints, and drug infusion devices.
3. Burns from objects that may heat during the MRI process, such as wires (including
lead wires for both implants and
external devices) and surgical staples, or from the patient's body touching the inside
walls (the bore) of the MRI scanner
during the scan. (2)
4. Injury or complication related to equipment or device malfunction or failure caused by
the magnetic field. For example, battery-powered devices (laryngoscopes, microinfusion
pumps, monitors, etc.) can suddenly fail to operate; some
programmable infusion pumps may perform erratically; (3) and pacemakers and
implantable defibrillators may not behave as programmed.
5. Injury or complication due to failure to attend to patient support systems during the
MRI. This is especially true for patient
