[jagged-chisel]

> I'm not allowed to have any metals or magnetic materials on me.

Loose or easily dislodged materials. My belt buckle was ok to keep on. Had to empty my pockets, take off my ring, metal piercings are disallowed.

You don’t want gobs of belongings piling up on your magnet, and you don’t want something large enough to pin the human between it and the magnet. The first scenario is quite expensive to rectify. The second is quite expensive, quite painful, probably fatal, and certainly traumatic.

[roywiggins]

Also important: no fabrics with metal fibers.

https://www.ajnr.org/content/34/5/E47.full

[bpye]

Does this possibly depend on the field strength? I was asked to change into a hospital gown when I had an MRI a couple years ago.

[lostlogin]

This is standard practice at many places and should be standard everywhere.

The American College of Radiology say the below [1].

‘it is advisable to require that the patients or research subjects wear site-supplied MR Safe scrubs or gowns in place of their own clothing and undergarments in the region undergoing direct RF irradiation.’

Slightly odd - this appears to be about burns rather than projectile risk. Anecdotally, sites that don’t change patients have more accidents.

[1] https://www.acr.org/-/media/ACR/Files/Radiology-Safety/MR-Sa...