What is MR safe?

MR / MRI

Magnetic Resonance Imaging is abbreviated to "MRI" or "MR". The terms are interchangeable.

As defined by the ASTM International (American Society for Testing and Materials) document, MR SAFE is applied to an item that poses no known hazards in all MR environments. MR SAFE items would include non-conducting, non-magnetic items such as a plastic Petri dish. The document further states that an item may be determined to be MR SAFE by providing a scientifically based rationale, rather than test data. Unlike the previous FDA’s description of MR SAFE, the new MR SAFE may only be applied if the item is 100% safe, without exception, regardless of field strength or any environmental or extenuating circumstances.

The universal icon to be used for all MR SAFE products is a green square with white capital letters “MR”, or, a white square with green border and green capital letters “MR”. Items marked with the green MR SAFE icon may be taken into, used, or placed anywhere within any MR environment without risk or potential harm.