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Three symbols saying whether an item may enter the scanner room.
Also known as: MR conditional, MRI compatibility marking
Items are marked MR safe, MR conditional or MR unsafe. Conditional is the category that causes trouble: it means safe only under stated conditions, and treating it as safe has produced serious injuries when the conditions were not met.
Classify an item's compatibility with a magnetic resonance environment as safe, conditional or unsafe.
Contexts: Medicine
Use a conditional category meaning safe only under stated conditions of field strength and gradient, which has been misread as unconditionally safe with documented harm.
Contexts: Medicine
Are marked in green, yellow and red respectively, so the colour carries the classification before the wording is read.
Contexts: Medicine
A square or triangle carrying the letters MR, filled green, or a triangle with the letters crossed through.