5 gauss line
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At the time the article was created Zemar Vajuhudeen had no recorded disclosures.View Zemar Vajuhudeen's current disclosures
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The 5 gauss line is the safety line drawn around the perimeter of the main magnet of the MRI scanner, specifying the distance at which the stray magnetic field is equivalent to 5 gauss (0.5 mT).
Five gauss and below are considered 'safe' levels of static magnetic field exposure for the general public.
At 5 gauss and above:
- cardiac pacemakers and other implanted electronic devices are at risk of being interfered with by the static magnetic field
- ferromagnetic materials may become projectile (and are thus prohibited from crossing the 5 gauss line)
Note that the distance at which a 5 gauss line is drawn around a particular MRI scanner will depend on magnet strength and the level of magnetic shielding used.
- 1. Pierre-Marie Robitaille, Lawrence Berliner. Ultra High Field Magnetic Resonance Imaging. (2007) ISBN: 9780387496481 - Google Books
- 2. R. Edward Hendrick. Breast MRI. (2007) ISBN: 9780387735078 - Google Books