But that’s zinc shot… It doesn’t even look like steel. It shouldn’t be attracted to a magnet. Perhaps they’re steel inside, but the outside is clearly zinc.
I soon expect to have screws implanted in my spine. I also have other infirmities. I hope like hell to never have screws ripped through my vertebrae by an MRI.
I think its not about the property of beeing a metall ist a bout beeing ferromagnetic (In that case probably not an issue because these bearing balls are usually out of some kind stainless steel. )
I was told that because I have stents (plastic coated with platinum) I can never get an MRI again by my cardiologist.
A friend who makes knives felt the little bits of metal that he’s picked up in his skin over years of grinding blades getting pulled out of him during an MRI.
Maybe aluminum foil in your pocket would only “interfere with the scan,” but those magnets are powerful enough to make any metal in your body come out, violently.
I know someone with metal pins in their leg and they have had a MRI. It depends on the metal. Since I didn’t specify what kind of metal everyone rushes forward to speculate on how wrong I am.
MRIs work because strong enough magnetic fields will interact with any material, not just ferrous metals. This can be impacted by the structure said materials form (stents are a weave like a finger trap and therefore more prone to interaction with magnetic fields than say a solid cylinder) but I’d be inclined to say your friend was lucky. Ball bearings like in the OP are nearly always steel outside of specific high end applications and therefore would behave like they were coming out of a shotgun shell.
A little metal wont kill you. It will ruin the image.
Metal will ruin a CT scan. Metal will kill you in an MRI machine.
But that’s zinc shot… It doesn’t even look like steel. It shouldn’t be attracted to a magnet. Perhaps they’re steel inside, but the outside is clearly zinc.
https://www.ausrad.com/exams-services/magnetic-resonance-imaging/can-i-have-an-mri-if-i-have-metal-in-my-body/
Isn’t that just because they use non-magnetic metals for implants?
Titanium, afaik
And that’s zinc shot. Perhaps they’re steel inside, but the outside is clearly zinc.
This isn’t an implant though. Massive difference.
I soon expect to have screws implanted in my spine. I also have other infirmities. I hope like hell to never have screws ripped through my vertebrae by an MRI.
What are implants made of? Stainless for the most part.
I think its not about the property of beeing a metall ist a bout beeing ferromagnetic (In that case probably not an issue because these bearing balls are usually out of some kind stainless steel. )
These aren’t bearing balls. They’re zinc shot. Perhaps they’re steel inside, but the outside is clearly zinc.
Neodymium magnets?
I was told metal interferes with the scan. By a guy doing the scan.
I was told that because I have stents (plastic coated with platinum) I can never get an MRI again by my cardiologist.
A friend who makes knives felt the little bits of metal that he’s picked up in his skin over years of grinding blades getting pulled out of him during an MRI.
Maybe aluminum foil in your pocket would only “interfere with the scan,” but those magnets are powerful enough to make any metal in your body come out, violently.
I know someone with metal pins in their leg and they have had a MRI. It depends on the metal. Since I didn’t specify what kind of metal everyone rushes forward to speculate on how wrong I am.
The post is obviously insinuating that these are iron balls, so in this context you are wrong.
Except that they’re clearly zinc shot. I think the poster made a funny without realising that they aren’t steel, unless it’s zinc-coated
MRIs work because strong enough magnetic fields will interact with any material, not just ferrous metals. This can be impacted by the structure said materials form (stents are a weave like a finger trap and therefore more prone to interaction with magnetic fields than say a solid cylinder) but I’d be inclined to say your friend was lucky. Ball bearings like in the OP are nearly always steel outside of specific high end applications and therefore would behave like they were coming out of a shotgun shell.
Yes Metals in general shild RF-Waves used to sample the image (and could get hot by that process)
Metal in a CT machine = bad image
Metal (particularly ferromagnetic metal) in an MRI machine = injured patient
Check out the stapler bouncing around near the beginning of this video: https://youtu.be/6BBx8BwLhqg