MRI quiz Flashcards
Magnetic Resonance Imaging uses a Super-Conducting Magnet to produce a Magnetic field. Which unit of measurement is used to express Magnetic Field strength?
Select one:
a.
Temperature
b.
Time
c.
Tesla
d.
Ton
e.
Titre
c.
Tesla
The Super-Conducting Magnetics need to be super cooled using a Cryogen (Dewar) Capsule. For one mark, which gas is used as a cooling agent?
Select one:
a.
Xenon
b.
Neon
c.
Helium
d.
Kypton
e.
Argon
c.
Helium
Before entering the MRI room [………….] should have been deemed safe to enter using a safety questionnaire and may continue if no contra-indications are found.
Neurotransmitter devices and credit cards are prohibited as […………….], unless they are MRI compatible.
Pregnancy is a contraindication in […………….].
Before entering the MRI room [everyone] should have been deemed safe to enter using a safety questionnaire and may continue if no contra-indications are found.
Neurotransmitter devices and credit cards are prohibited as [they will cease to function], unless they are MRI compatible.
Pregnancy is a contraindication in [the first trimester.].
For one mark, from the options below, select which one(s) may cause image degradation in MRI:
- patient movement
- magnetic susceptibility
- wrapping around of the signal
All are correct
The term given to release the super cooling gas from its chamber is to [……………]. This must only be undertaken in case of an emergency such as […………………..] or if directed by an Engineer or the Superintendent of the unit. Doing this will cause the temperature of the MRI room to drop dramatically and no one should be in the MRI room when this occurs as it causes [………………..].
The term given to release the super cooling gas from its chamber is to [Quench]. This must only be undertaken in case of an emergency such as [Fire] or if directed by an Engineer or the Superintendent of the unit. Doing this will cause the temperature of the MRI room to drop dramatically and no one should be in the MRI room when this occurs as it causes [oxygen to be displaced.].
For one mark, what does the abbreviation SAR stand for?
Select one:
a.
Signal Absorption Rate
b.
Specific Absorption Rate
c.
Signal Aligned Radiofrequency
d.
Signal Absorbed Radiofrequency
e.
Specific Accumulated Radiofrequency
b.
Specific Absorption Rate