ASMIRT - MRI Accreditation
EXAM COVERAGE - ASMIRT MRI Accreditation
The MRI Accreditation by Australian Society of Medical Imaging and
Radiation Therapy (ASMIRT) evaluates professional knowledge and
competency in Magnetic Resonance Imaging (MRI) practice. The
exam covers MRI physics principles, image formation, pulse
sequences, and safety protocols related to magnetic fields and
radiofrequency exposure. It also includes patient preparation and
positioning, contrast media use, MRI equipment operation, and quality
assurance procedures. Additional areas include cross-sectional
anatomy, pathology recognition on MRI images, infection control, and
professional and ethical standards in medical imaging practice. The
exam emphasizes safe MRI operation, accurate image acquisition,
,patient care, and adherence to clinical and regulatory standards in
diagnostic imaging.
Sensory effects of the static magnetic field increase or decrease with
field strength?
Sensory effects are related to the strength of the magnetic field with
few symptoms at 1.5T and more appearing approaching a 4T field
strength
,Explain what t-wave artefact is and why it occurs
Any charged particle moving through a magnetic field will have a
current induced via this interaction. As blood, a conductive fluid flows
through a magnetic field it induces an electrical biopotential. This
electrical biopotential can be seen on the ECG waveform of patients
in MRI. It is demonstrated by an increase in the T-wave amplitude on
ECG. This change in T-wave amplitude is directly proportional to the
strength of the Static Filed. It is important that MR radiographers are
aware of this as elevated T-waves are also associated with ischemia
and myocardial infarction.
, Mild sensory effects due to static magnetic fields include:
• Vertigo
• Nausea
• Taste Sensations
EXAM COVERAGE - ASMIRT MRI Accreditation
The MRI Accreditation by Australian Society of Medical Imaging and
Radiation Therapy (ASMIRT) evaluates professional knowledge and
competency in Magnetic Resonance Imaging (MRI) practice. The
exam covers MRI physics principles, image formation, pulse
sequences, and safety protocols related to magnetic fields and
radiofrequency exposure. It also includes patient preparation and
positioning, contrast media use, MRI equipment operation, and quality
assurance procedures. Additional areas include cross-sectional
anatomy, pathology recognition on MRI images, infection control, and
professional and ethical standards in medical imaging practice. The
exam emphasizes safe MRI operation, accurate image acquisition,
,patient care, and adherence to clinical and regulatory standards in
diagnostic imaging.
Sensory effects of the static magnetic field increase or decrease with
field strength?
Sensory effects are related to the strength of the magnetic field with
few symptoms at 1.5T and more appearing approaching a 4T field
strength
,Explain what t-wave artefact is and why it occurs
Any charged particle moving through a magnetic field will have a
current induced via this interaction. As blood, a conductive fluid flows
through a magnetic field it induces an electrical biopotential. This
electrical biopotential can be seen on the ECG waveform of patients
in MRI. It is demonstrated by an increase in the T-wave amplitude on
ECG. This change in T-wave amplitude is directly proportional to the
strength of the Static Filed. It is important that MR radiographers are
aware of this as elevated T-waves are also associated with ischemia
and myocardial infarction.
, Mild sensory effects due to static magnetic fields include:
• Vertigo
• Nausea
• Taste Sensations
