Thread: Don't bring your office chair for your MRI!
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Old 10-18-2006, 09:22 PM
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kingrex kingrex is offline
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Join Date: Sep 2006
Location: South Florida
Posts: 97
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Quote:
Originally Posted by UNDX Craig View Post
Hi Nancy,

Like Sally, I had no idea of the strength of the MRI when it is on. And to think we willingly place out whole bodies inside to shoot the tube?????

The magnet is always on. Even when the RF isn't pulsing and the machine isn't scanning anyone, the magnetic field is constant. These superconducting magnets take a long time to ramp-up to the target field strength, and they use liquid helium to keep the magnet just above absolute zero, which lets the current flow through the magnet's miles of wire indefinitely.

Again, it's always on...24/7/365.
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