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There are many excellent videos on youtube that show what happens when
someone has a metallic object in the room with an MRI. One is a chair
that flies up in the air and gets stuck to it! Neat stuff. <br>
<br>
hkhenson wrote:
<blockquote cite="mid:1192207592_37972@S4.cableone.net" type="cite">
<pre wrap="">At 07:14 AM 10/12/2007, Natasha wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Last night I had to fill out a form for an MRI. It was a regular,
usual form, nothing out of the ordinary. Had a drawing of a body,
front and back.
The list has such items listed as:
electronic implant or device
Magnetically-activated implant or device
Magnet therapy patch
Neurostimulation system
Spinal cord stimulator
Internal electrodes or wires
Bone growth/bone/fusion stimulator
Implanted drug infusion device
Any type of prosthesis/implant (eye, penile, etc.)
Eyelid spring or wire
Artificial or prosthetic limb
Radiation seeds or implants
Tissue expander
(and the lists goes on....)
When I see it in black and white, written down on a form, I have to
laugh at how cyborgization of body is an every day affair.
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<pre wrap=""><!---->
I don't know if the big magnet would rip something magnetic out of a
person, but those big magnets are *dangerous.*
Few years ago I was talking to a MRI tech who told me about the time
someone brought a steel E cylinder into the room in spite of all the
warnings to keep iron out. About 15 or 20 feet from the magnet the
cylinder ripped loose at 50 g acceleration and went into the magnet
bore at about the velocity of an 18th century cannon
ball. Fortunately nobody was in the way. Took 6 days to cycle the
magnet down, pull out the oxygen cylinder and bring the magnet back
up to strength.
Keith
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