Comment on Small little shenanigans

• thethrilloftime69@feddit.online ⁨3⁩ ⁨weeks⁩ ago

  Metal will ruin a CT scan. Metal will kill you in an MRI machine.

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  • MehBlah@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    ausrad.com/…/can-i-have-an-mri-if-i-have-metal-in…

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    • PeriodicallyPedantic@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

      Isn’t that just because they use non-magnetic metals for implants?

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      • gens@programming.dev ⁨3⁩ ⁨weeks⁩ ago

        Titanium, afaik

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      • wolframhydroxide@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

        And that’s zinc shot.

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    • ilikecoffee@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      In general, metallic orthopedic implants are not affected by MRI. 

      This isn’t an implant though. Massive difference.

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      • toynbee@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        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.

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      • MehBlah@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        What are implants made of? Stainless for the most part.

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  • wolframhydroxide@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

    But that’s zinc shot… It doesn’t even look like steel. It shouldn’t be attracted to a magnet.

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• MatSeFi@lemmy.liebeleu.de ⁨3⁩ ⁨weeks⁩ ago

  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. )

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  • wolframhydroxide@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

    These aren’t bearing balls. They’re zinc shot.

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    • TimeNaan@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      We get it, zinc shot man.

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    • FishFace@piefed.social ⁨2⁩ ⁨weeks⁩ ago

      False.

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  • Thedogdrinkscoffee@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

    Neodymium magnets?

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  • MehBlah@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    I was told metal interferes with the scan. By a guy doing the scan.

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    • dylanmorgan@slrpnk.net ⁨3⁩ ⁨weeks⁩ ago

      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.

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      • MehBlah@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        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.

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    • MatSeFi@lemmy.liebeleu.de ⁨3⁩ ⁨weeks⁩ ago

      Yes Metals in general shild RF-Waves used to sample the image (and could get hot by that process)

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• kersploosh@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

  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

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