Video: Understanding MRI

Is there radiation exposure during an MRI?

If you answered no – you are correct.

Magnetic resonance imaging is a diagnostic imaging test that uses magnetic fields to produce images. Using magnetic fields avoids the risks of damaging ionizing radiation of x-rays. Tumors, bleeding, infection, edema, aneurysms or obstruction are detected with MRI.

The first magnetic resonance scanner was installed in the United States in 1981. Also, Peter Mansfield, Nobel laureate who helped develop the machine recently died at the age of 83. 


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