hairpieces and brain mri?

Hi all. This is my first time posting on the new site. I hope I get it right! So many new buttons. ( What is the difference between guided mode and normal mode).

Anyway, here is my question....I had to have a brain MRI today and have a hairpiece on the top of my head. I have lost a lot of hair from chemo. The hairpiece is woven into my remaining hair and there are small beads clipping it to the hair. The beads are copper, not metal. But no one knew at the facility what to do with this, so I had to go and have it removed, have the scan, and then have it put back on.

Anybody have any experience with this?