MRSE Exam WITH CORRECT ANSWERS |\ |\ |\ |\
What is the most accurate way to measure energy dose
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
to the patient? - CORRECT ANSWERS ✔✔B1 + rms
|\ |\ |\ |\ |\ |\ |\ |\
Formula for temperature change in a patient - CORRECT
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ANSWERS ✔✔dTp/dt = SAR/C, where C = 4186 J/kg, Tp =
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
temperature
How much does liquid helium expand when transitioning
|\ |\ |\ |\ |\ |\ |\ |\
to gaseous helium? - CORRECT ANSWERS ✔✔>700x
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Electric field density (JE) formula - CORRECT ANSWERS
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✔✔JE = Conductivity x electric field strength x B0 x V
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where V = velocity?
|\ |\ |\
Kinetic stability - CORRECT ANSWERS ✔✔The rate at
|\ |\ |\ |\ |\ |\ |\ |\
which a gadolinium agent dissociates
|\ |\ |\ |\
Thermodynamic stability - CORRECT ANSWERS ✔✔the |\ |\ |\ |\ |\ |\
change that a gadolinium agent will transmetallate
|\ |\ |\ |\ |\ |\
,Diamagnetic - CORRECT ANSWERS ✔✔Very small |\ |\ |\ |\ |\ |\
negative magnetic susceptibility (X), two electrons in an
|\ |\ |\ |\ |\ |\ |\ |\
orbital
Paramagnetic - CORRECT ANSWERS ✔✔Very small |\ |\ |\ |\ |\ |\
positive magnetic susceptibility (X), one electron in an
|\ |\ |\ |\ |\ |\ |\ |\
orbital
Ferromagnetic - CORRECT ANSWERS ✔✔very large |\ |\ |\ |\ |\ |\
positive magnetic susceptibility (X), domains of
|\ |\ |\ |\ |\ |\
directional magnetism that can align with an external
|\ |\ |\ |\ |\ |\ |\ |\
field, retains magnetism after being removed from field
|\ |\ |\ |\ |\ |\ |\
RF Pulse power (heating) formula - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔Power = Flip Angle ^2 x (Tp / Tr) where Tp = pulse
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
duration, Tr = |\ |\
Slew rate formula - CORRECT ANSWERS ✔✔Maximum
|\ |\ |\ |\ |\ |\ |\
Gradient Strength (mT/m) / Rise Time (ms)
|\ |\ |\ |\ |\ |\
What parameters can be changed to reduce Peripheral
|\ |\ |\ |\ |\ |\ |\ |\
Nerve Stimulation (PNS)? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\
✔✔Increase rise time (reduces slew rate), decrease|\ |\ |\ |\ |\ |\ |\
matrix/phase encoding (reduces slope of gradient), |\ |\ |\ |\ |\ |\
increasing slice thickness (shallower slice selection
|\ |\ |\ |\ |\ |\
gradient), increase FOV (shallower frequency encoding
|\ |\ |\ |\ |\ |\
,gradient), phase noise-canceling (opposite frequency to
|\ |\ |\ |\ |\ |\
noise), increase echo time TE
|\ |\ |\ |\
Nitinol is (paramagnetic/diamagnet/ferromagnetic) -
|\ |\ |\ |\
CORRECT ANSWERS ✔✔paramagnetic |\ |\
What quantitative property of the gradient coils is
|\ |\ |\ |\ |\ |\ |\ |\
responsible for Peripheral Nerve Stimulation (PNS)? -
|\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔slew rate |\ |\ |\
What contrast agents are the most stable? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔macrocyclic, ionic |\ |\
What is a common dose of gadolinium? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔0.1 mmol/kg |\ |\
In what direction relative to the magnetic flux will the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
strongest Lenz's force be produced? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔antiparallel
|\
What is the ASTM duration of time defined for heating
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
effects? - CORRECT ANSWERS ✔✔15 mins continuous
|\ |\ |\ |\ |\ |\ |\
scanning
, Where is translational force at a maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔edge of bore |\ |\ |\
Where is translational force at a minimum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔isocenter |\
Where is rotational force at a maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔isocenter |\
Where are gradient fields at their maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔inner periphery of bore
|\ |\ |\ |\
Do gradient fields extend outside the bore? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔yes |\
Do RF fields extend outside the bore? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔no |\
What kind of stainless steel is NOT ferritic? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔316L austenitic stainless steel
|\ |\ |\ |\
Cobalt is (paramagnetic/diamagnetic/ferromagnetic) -
|\ |\ |\ |\
CORRECT ANSWERS ✔✔ferromagnetic
|\ |\
What is the most accurate way to measure energy dose
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
to the patient? - CORRECT ANSWERS ✔✔B1 + rms
|\ |\ |\ |\ |\ |\ |\ |\
Formula for temperature change in a patient - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔dTp/dt = SAR/C, where C = 4186 J/kg, Tp =
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
temperature
How much does liquid helium expand when transitioning
|\ |\ |\ |\ |\ |\ |\ |\
to gaseous helium? - CORRECT ANSWERS ✔✔>700x
|\ |\ |\ |\ |\ |\
Electric field density (JE) formula - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔JE = Conductivity x electric field strength x B0 x V
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
where V = velocity?
|\ |\ |\
Kinetic stability - CORRECT ANSWERS ✔✔The rate at
|\ |\ |\ |\ |\ |\ |\ |\
which a gadolinium agent dissociates
|\ |\ |\ |\
Thermodynamic stability - CORRECT ANSWERS ✔✔the |\ |\ |\ |\ |\ |\
change that a gadolinium agent will transmetallate
|\ |\ |\ |\ |\ |\
,Diamagnetic - CORRECT ANSWERS ✔✔Very small |\ |\ |\ |\ |\ |\
negative magnetic susceptibility (X), two electrons in an
|\ |\ |\ |\ |\ |\ |\ |\
orbital
Paramagnetic - CORRECT ANSWERS ✔✔Very small |\ |\ |\ |\ |\ |\
positive magnetic susceptibility (X), one electron in an
|\ |\ |\ |\ |\ |\ |\ |\
orbital
Ferromagnetic - CORRECT ANSWERS ✔✔very large |\ |\ |\ |\ |\ |\
positive magnetic susceptibility (X), domains of
|\ |\ |\ |\ |\ |\
directional magnetism that can align with an external
|\ |\ |\ |\ |\ |\ |\ |\
field, retains magnetism after being removed from field
|\ |\ |\ |\ |\ |\ |\
RF Pulse power (heating) formula - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔Power = Flip Angle ^2 x (Tp / Tr) where Tp = pulse
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
duration, Tr = |\ |\
Slew rate formula - CORRECT ANSWERS ✔✔Maximum
|\ |\ |\ |\ |\ |\ |\
Gradient Strength (mT/m) / Rise Time (ms)
|\ |\ |\ |\ |\ |\
What parameters can be changed to reduce Peripheral
|\ |\ |\ |\ |\ |\ |\ |\
Nerve Stimulation (PNS)? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\
✔✔Increase rise time (reduces slew rate), decrease|\ |\ |\ |\ |\ |\ |\
matrix/phase encoding (reduces slope of gradient), |\ |\ |\ |\ |\ |\
increasing slice thickness (shallower slice selection
|\ |\ |\ |\ |\ |\
gradient), increase FOV (shallower frequency encoding
|\ |\ |\ |\ |\ |\
,gradient), phase noise-canceling (opposite frequency to
|\ |\ |\ |\ |\ |\
noise), increase echo time TE
|\ |\ |\ |\
Nitinol is (paramagnetic/diamagnet/ferromagnetic) -
|\ |\ |\ |\
CORRECT ANSWERS ✔✔paramagnetic |\ |\
What quantitative property of the gradient coils is
|\ |\ |\ |\ |\ |\ |\ |\
responsible for Peripheral Nerve Stimulation (PNS)? -
|\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔slew rate |\ |\ |\
What contrast agents are the most stable? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔macrocyclic, ionic |\ |\
What is a common dose of gadolinium? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔0.1 mmol/kg |\ |\
In what direction relative to the magnetic flux will the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
strongest Lenz's force be produced? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔antiparallel
|\
What is the ASTM duration of time defined for heating
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
effects? - CORRECT ANSWERS ✔✔15 mins continuous
|\ |\ |\ |\ |\ |\ |\
scanning
, Where is translational force at a maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔edge of bore |\ |\ |\
Where is translational force at a minimum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔isocenter |\
Where is rotational force at a maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔isocenter |\
Where are gradient fields at their maximum? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔inner periphery of bore
|\ |\ |\ |\
Do gradient fields extend outside the bore? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔yes |\
Do RF fields extend outside the bore? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔no |\
What kind of stainless steel is NOT ferritic? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔316L austenitic stainless steel
|\ |\ |\ |\
Cobalt is (paramagnetic/diamagnetic/ferromagnetic) -
|\ |\ |\ |\
CORRECT ANSWERS ✔✔ferromagnetic
|\ |\
