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New Safety Definitions for MRI as Defined by International
Standard F2503-20
MR SAFE:
An item that poses no known hazards resulting from exposure to any MR
environment. MR SAFE items are composed of materials that are electrically
nonconductive, non-metallic, and nonmagnetic.
MR CONDITIONAL:
MR Conditional – an item with demonstrated safety in the MR environment within
defined conditions including conditions for the static magnetic field, the time-
varying gradient magnetic fields and the radiofrequency fields.
Supplementary marking – additional information that, in association with marking
as “MR CONDITIONAL,” states via additional language the conditions in which an
item can be used safely within the MR environment.
MR UNSAFE:
An item which poses unacceptable risks to the patient, medical staff or other
persons within the MR environment.
