MRI question?

Discussion in 'General Discussion' started by Alpha Prime, Mar 16, 2007.

  1. Alpha Prime

    Alpha Prime Ten Years Strong

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    Can an MRI kill you?

    This dude at school said the doctors told him it could. I don't believe it, he has poor listening skills. But anywho, just wanted to see what y'all had to say.
     
  2. Foster

    Foster Super Mod

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  3. MegaMoonMan

    MegaMoonMan www.megamoonman.com TFW2005 Supporter

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    It could kill you if you were a robot, I suppose.

    Are you a robot?
     
  4. Team Jetfire

    Team Jetfire Pop-POP!

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    I think FOX had a special on that.

    'When Micropower Impulse Radars attack 2!!!!!'

    I searched, but to could not find anything.
     
  5. Darkravager

    Darkravager Zombie Hunter

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    I think it's the stuff they inject you with that can kill you.
     
  6. FreshDebesh

    FreshDebesh <b><font color=brickred>oye chak de phatte!</font> Veteran

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    Any kind of radiation has the ability to kill someone but its usually a case where the benefit outweighs the risks.
     
  7. Turbocharger

    Turbocharger We should get more letter

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    Well, it just uses magnets and radio waves, so I'd guess it's no more deadly than standing next to a microwave for few minutes.
     
  8. Kranix2k

    Kranix2k Spare me this mockery!! TFW2005 Supporter

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    Time out, guys. Let me speak on this from 16 years in Radiology:

    MRI in of itself wont harm you in the least. The only hazards to MRI is if you fail to mention metallic objects that are inside you, such as a pacemaker or implants or such. Although there is a possibility of those being pulled out by the magnet during the test, the worst thing (according to experienced MRI techs I know) is that the items heat up during the test (molecular excitation from the magnetic waves). Best way to keep safe is to know your health history before you take the test.

    Word to the wise: Remove everything from your pockets before you get near the MRI scanner room. The MRI can wipe out your credit cards and mess up your cellphones.
     
  9. llamatron

    llamatron Shut up, Nigel. TFW2005 Supporter

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    What he said. Also I'm pretty sure that an MRI scan doesn't involve any biological tracer? I could be wrong though. From memory it's 3 different magnetic fields (with a gradient) used to line up the electron spins in water and fat etc. I'd say the biggest risk was heating stuff up (as it kind of operates like a microwave in that it's flipping the spins of electrons) or of course if you have a pacemaker or a chunk of metal in your body or on you it's not going to be pleasant.
     
  10. Phy

    Phy I want... ROOM SERVICE!!

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    I've heard a couple of times that they don't let guys who've worked in a machine shop for a long time take MRIs, because of all the metal filings and stuff that may have inadvertently wound up in their bodies.
     
  11. Kranix2k

    Kranix2k Spare me this mockery!! TFW2005 Supporter

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    IIRC - only if they have large pieces (over an inch or 2).

    On the tracer they inject: Its a contrast called Gadolinium. It doesnt USUALLY have side effects but they check for certain allergies and/or kidney function problems before they inject it anyway.
     
  12. fschuler

    fschuler Member TFW2005 Supporter

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    MRI = Magnetic Resonance Imaging = Nuclear Magnetic Resonance = NMR (a technique used to detect certain types of carbon bonds in organic chemistry analyses. At different magnetic field strengths, different "types" of carbon-13nuclei will resonate and be detected by the instrument. Wiki also indicates that hydrogen-1 nuclei will resonate, among others.
     

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