What's an MRI scan?
An MRI uses a strong magnet (about 30,000 times stronger than the earth's
magnetic field) to align all the water molecules in the subject's body in
the same quantum orientation. A pulse of radio waves causes the water molecules
to dealign at different frequencies, and a computer can then generate an image
from that data. A sketch and picture of the type of MRI machine used at BIDMC
can be found here.
Are MRI scans harmful?
Absolutely not. Unlike X-Ray's, MRIs are completely harmless. The
machine does make some loud buzzing noises, so we recommend that earplugs
are used (these will be provided). Subjects who believe they may be claustrophobic
might feel uncomfortable in the scanner, but most people find the experience
enjoyable and relaxing. The magnetic field and radio waves cannot be "felt"
in any measurable way.
Where are the MRIs administered?
Note that the MRIs are not given in the same place that the testing
was done. We will meet at the scheduled time in the Feldberg Building lobby
in the East Campus for the MRI. Here
is a map (pdf) that shows the testing and MRI sites.
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