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MRSO TERMS SHEET AND EXPLANATION
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MRSO TERMS SHEET AND EXPLANATIONActive Shielding - Answer To diminish the fringe field, an electrical current is
passed through a wire coil to create an electromagnetic field that opposes the static
magnetic field.
Bsub0 - Answer The unit used to describe static magnetic fields.
Deflection - Answer The level of attraction an object has to a static magnetic field.
Diamagnetism - Answer When placed in a strong static magnetic field, it exerts a
mildly repelling force.
Faraday's Law of Induction: ANSWER This outlines how electric currents are
generated in the presence of alternating magnetic fields.
Ferromagnetism - Answer An object with a strong attractive force in a strong static
magnetic field that maintains a magnetic field even after leaving the field.
Flux Lines - Answer The magnetic density gradient that moves from the static
magnetic field's north pole to the south pole.
Fringe Field - Answer The magnetic field that extends from the MR unit.
Gauss is a unit of measurement for magnetic fields.
Horizontal Static Magnetic Field - Answer A horizontal magnetic field vector.
Lenz's Force - Answer The process by which nonferrous items generate a magnetic
field when moving through a strong static magnetic field.
,Magnetic Field Strength - Answer The total magnetic field strength of the MR unit.
Magnetic Moment - Answer Each hydrogen proton produces an own magnetic
field.
Magnetohydrodynamic Effect - Answer When a patient is subjected to a powerful
static magnetic field, their blood gets magnetized. This results in an increased T
wave in their cardiac cycle.
Paramagnetic - Answer When placed in a static magnetic field, it produces a
weakly attracting force.
Passive Shielding - Answer The use of magnetically conductive materials in MR
units to eliminate fringe fields.
Pauli Exclusion Principle - Answer The principle that describes atomic structure
and magnetism kinds (ferromagnetism, paramagnetism, diamagnetism, etc.).
Rotational Force - Answer A force that aligns items impacted by the static
magnetic field with its flux lines.
Spatial Gradient Magnetic - Answer The fluctuating magnetic field strength was
observed at various distances from the MR equipment.
Static Magnetic Field - Answer The magnetic field that aligns hydrogen nuclei in
parallel or antiparallel.
Superparamagnetic - Answer When placed in a strong static magnetic field, this
attraction is stronger than superparamagnetic but weaker than ferromagnetism.
, Teratogenic - Answer The potential effects of a static magnetic field on the children
of those who have been exposed to it.
Tesla - Answer The unit of measurement used to describe static magnetic fields.
Translation Force - Answer The attracting force of an object when it passes through
a static gradient magnetic field.
Vector - Answer Direction of the static magnetic field.
Vertical Static Magnetic Field - Answer A magnetic field vector that is vertical.
Axial Imaging - Answer This is a collection of images produced when the Z
gradient is activated.
Coronal Imaging - Answer This is a collection of images generated when the Y
gradient is active.
Duty Cycle - ANSWER The length of time the gradient coils can remain active.
Golay Coil - Answer A pair of saddle electromagnetic coils situated on the patient's
right and left sides, as well as anterior and posterior, that generate high magnetic
fields from left to right and anterior to posterior, respectively.
Gradient Steepness - Answer The active gradient's slope or amplitude.
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