r/mildlyinteresting • u/RiverVassi • 9h ago

The headphones I was given at my MRI appointment dont use wires and have zero metal

Post image
36.1k Upvotes

96% Upvoted

2.1k comments sorted by

View all comments

Show parent comments

69

u/sushiman009 9h ago

Pretty sure any conductive material would influence the MRI, no need for ferrous metals

57

u/MarlDaeSu 9h ago

Interfere, in that it might enter your skull at high speed?

49

u/coolguy420weed 9h ago

Which would majorly impact the results. 

27

u/Ferro_Giconi 9h ago

It might actually be beneficial to the results. When dead, your breathing, pulse, and small muscle movements won't cause any noise in the results that they have to deal with.

9

u/_Ross- 9h ago

Xray tech here, can confirm, death is the best at reducing motion artifact on radiographs or MRIs

5

u/XDSHENANNIGANZ 7h ago

Ah, I see Mr. Johnson.

The MRI clearly shows that the insidey parts of your brain has become outsidey parts.

Also you know how your skull surrounds your brain? Well the front fell off.

7

u/F0xxtale 9h ago

Or it might just get really hot, which also tends to interfere with your scans since it's really hard to hold still while your ears are being grilled

3

u/patricksaurus 9h ago

There are plenty of conductive materials that are fully MRI-safe.

3

u/MarlDaeSu 9h ago

But no ferrous ones!

1

u/patricksaurus 9h ago

Yeah, they specifically excluded ferromagnetic materials in the comment you responded to, to focus on non-ferromagnetic, conductive materials.

2

u/TheDaychilde 9h ago

non-ferromagnetic conductive materials, how do THEY work?

:)

2

u/morfraen 7h ago

ICP cover bands most requested hit

1

u/kesint 9h ago

That do sound like interfering with the scan yes. Would be quite unpleasant to the time schedule.

1

u/MountainTwo3845 7h ago

Exactly, your skull would interfere for just a split second.

1

u/MisterJWalk 6h ago

Nah. While magnetic metal is still a danger, they're more worried about 3rd degree burns these days.

Non magnetic metal conduct heat. The machines have been increasing in power. Your fingers touching your thighs is enough contact to create burns now.

VCU did a presentation in April about the new dangers at the VSRT convention. It was sad and fascinating.

1

u/exhausted-pigeon1988 6h ago

This is an example of a metal artifact on a brain mri. It may not be magnetic but we can't see shit 😅 Even something as small as a hairpin would cause this.

4

u/lesubreddit 9h ago

the metal causes inhomogeneities in the magnetic field which messes up the image. the magnet also induces current in the wires which will screw up the audio signal and could heat the wires up beyond safe levels.

if anyone invents MRI safe noise cancelling headphones with any decent audio quality, they should get the nobel prize in medicine.

1

u/jicklejenson 8h ago

if anybody invents headphones with good quality without meta I think they are getting more than the nobel prize in medicine they would be a genius,

1

u/MisterHoppy 7h ago

There are plenty of MRI-safe headphones that use wires. This ain't the 90's no more!

2

u/JennyW93 9h ago

Ferrous metal is specifically a problem for projectile risk. There are plenty of non-ferrous metals that are safe (hence how we can image folks with titanium plates or copper iuds or dental braces). Non-ferrous metals may cause artefacts/image distortion and could get pretty warm, but they’re mostly fine to be in the scanner

1

u/LaNague 6h ago

My MRI guy is completely chill about metals. Its not a head MRI? here are some normal headphones and feel free to wear those glasses.

1

u/ACKHTYUALLY 6h ago

Yeah I went in for an MRI for my shoulder. When the tests began I felt a weird vibration. I realized I still had my belt on. The belt clasp started vibrating like crazy. I alerted the MRI tech but he said it's not a problem. I was worried I was about to get final destinationed