Comment on Small little shenanigans

• PeriodicallyPedantic@lemmy.ca ⁨2⁩ ⁨weeks⁩ ago

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

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  • gens@programming.dev ⁨2⁩ ⁨weeks⁩ ago

    Titanium, afaik

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  • wolframhydroxide@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

    And that’s zinc shot.

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    • FishFace@piefed.social ⁨2⁩ ⁨weeks⁩ ago

      How on earth can you tell the difference between steel and zinc at a glance?

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      • wolframhydroxide@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

        Zinc has a characteristic blue tint and oxidizes to white.

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    • PeriodicallyPedantic@lemmy.ca ⁨2⁩ ⁨weeks⁩ ago

      I know it’s my name, but I have to congratulate you on the excellent pedantry!

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• ilikecoffee@lemmy.world ⁨2⁩ ⁨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 ⁨2⁩ ⁨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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    • Kornblumenratte@feddit.org ⁨2⁩ ⁨weeks⁩ ago

      Implants are non-magnetic. Wrecks the image, though.

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      • toynbee@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        Hopefully they don’t need to do an MRI of my spine after they operate on it - apparently for their sake, not mine.

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    • HurricaneLiz@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Ugh, yeah, how do they even do MRIs for people with metal parts?

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      • toynbee@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        I think, as someone else said, things installed into the body are usually titanium and thus non ferrous. Fortunately they don’t generally cause issues with MRIs as a result.

        (I only know this because when I broke my ankle, during the pre-surgery interview, I asked the surgeon about going through metal scanners at an airport.)

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      • Valmond@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

        Non ferrous metal.

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  • MehBlah@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

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

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    • ilikecoffee@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Usually titanium, but yeah sometimes medical stainless steel. Both are non-ferromagnetic, especially titanium. These balls look like they could well be normal steel or any other metal. Also, implants - unlike these metal balls - are usually screwed firmly into your bones. So yeah, implants should be mostly fine on MRI. Loose balls of dubious metal? Wouldn’t advise it. Keep in mind MRIs are literally powerful enough that metals in tattoo ink can even be an issue - which the article you linked mentions itself.

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