MRI FYI

May 2, 2017

Just how strong is the magnetic field of our scanner?

The magnetic field of our MRI scanner is 1.5 Tesla. The earths magnetic field is .5 Gauss. 1 Tesla is equal to 10 000 Gauss. So, our MRI scanner has a magnetic field that is 30 000 times stronger then the magnetic field of the earth. It is 300 times stronger than a fridge magnet and 1.50 times stronger then a junkyard magnet.

One important this to know is that the magnet is ALWAYS on. It does not turn off before or after scanning. Therefore, we go through a very thorough screening process for anyone who needs to be in the scan room. 


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