Page 1 of 43
MRSE EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK| COMPLETE 550 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ GRADED A+|
MAGNETIC RESONANCE SAFETY EXPERT
CERTIFICATION EXAM PREP 2025/2026 (MOST
RECENT!!)
Formula for temperature change in a patient .....ANSWER.....
dTp/dt = SAR/C, where C = 4186 J/kg, Tp = temperature
How much does liquid helium expand when transitioning to
gaseous helium? .....ANSWER..... >700x
Electric field density (JE) formula .....ANSWER..... JE =
Conductivity x electric field strength x B0 x V where V =
velocity?
What is the most accurate way to measure energy dose to the
patient? .....ANSWER..... B1 + rms
,Page 2 of 43
Kinetic stability .....ANSWER..... The rate at which a gadolinium
agent dissociates
Thermodynamic stability .....ANSWER..... the change that a
gadolinium agent will transmetallate
Diamagnetic .....ANSWER..... Very small negative magnetic
susceptibility (X), two electrons in an orbital
Paramagnetic .....ANSWER..... Very small positive magnetic
susceptibility (X), one electron in an orbital
Ferromagnetic .....ANSWER..... 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 .....ANSWER..... Power = Flip
Angle ^2 x (Tp / Tr) where Tp = pulse duration, Tr =
,Page 3 of 43
Slew rate formula .....ANSWER..... Maximum Gradient Strength
(mT/m) / Rise Time (ms)
What parameters can be changed to reduce Peripheral Nerve
Stimulation (PNS)? .....ANSWER..... 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)
.....ANSWER..... paramagnetic
What quantitative property of the gradient coils is responsible
for Peripheral Nerve Stimulation (PNS)? .....ANSWER..... slew rate
What contrast agents are the most stable? .....ANSWER.....
macrocyclic, ionic
, Page 4 of 43
What is a common dose of gadolinium? .....ANSWER..... 0.1
mmol/kg
In what direction relative to the magnetic flux will the strongest
Lenz's force be produced? .....ANSWER..... antiparallel
What is the ASTM duration of time defined for heating effects?
.....ANSWER..... 15 mins continuous scanning
Where is translational force at a maximum? .....ANSWER..... edge
of bore
Where is translational force at a minimum? .....ANSWER.....
isocenter
Where is rotational force at a maximum? .....ANSWER.....
isocenter
Where are gradient fields at their maximum? .....ANSWER.....
inner periphery of bore
Do gradient fields extend outside the bore? .....ANSWER..... yes
MRSE EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK| COMPLETE 550 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ GRADED A+|
MAGNETIC RESONANCE SAFETY EXPERT
CERTIFICATION EXAM PREP 2025/2026 (MOST
RECENT!!)
Formula for temperature change in a patient .....ANSWER.....
dTp/dt = SAR/C, where C = 4186 J/kg, Tp = temperature
How much does liquid helium expand when transitioning to
gaseous helium? .....ANSWER..... >700x
Electric field density (JE) formula .....ANSWER..... JE =
Conductivity x electric field strength x B0 x V where V =
velocity?
What is the most accurate way to measure energy dose to the
patient? .....ANSWER..... B1 + rms
,Page 2 of 43
Kinetic stability .....ANSWER..... The rate at which a gadolinium
agent dissociates
Thermodynamic stability .....ANSWER..... the change that a
gadolinium agent will transmetallate
Diamagnetic .....ANSWER..... Very small negative magnetic
susceptibility (X), two electrons in an orbital
Paramagnetic .....ANSWER..... Very small positive magnetic
susceptibility (X), one electron in an orbital
Ferromagnetic .....ANSWER..... 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 .....ANSWER..... Power = Flip
Angle ^2 x (Tp / Tr) where Tp = pulse duration, Tr =
,Page 3 of 43
Slew rate formula .....ANSWER..... Maximum Gradient Strength
(mT/m) / Rise Time (ms)
What parameters can be changed to reduce Peripheral Nerve
Stimulation (PNS)? .....ANSWER..... 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)
.....ANSWER..... paramagnetic
What quantitative property of the gradient coils is responsible
for Peripheral Nerve Stimulation (PNS)? .....ANSWER..... slew rate
What contrast agents are the most stable? .....ANSWER.....
macrocyclic, ionic
, Page 4 of 43
What is a common dose of gadolinium? .....ANSWER..... 0.1
mmol/kg
In what direction relative to the magnetic flux will the strongest
Lenz's force be produced? .....ANSWER..... antiparallel
What is the ASTM duration of time defined for heating effects?
.....ANSWER..... 15 mins continuous scanning
Where is translational force at a maximum? .....ANSWER..... edge
of bore
Where is translational force at a minimum? .....ANSWER.....
isocenter
Where is rotational force at a maximum? .....ANSWER.....
isocenter
Where are gradient fields at their maximum? .....ANSWER.....
inner periphery of bore
Do gradient fields extend outside the bore? .....ANSWER..... yes
