Magnetic resonance imaging (MRI) is a diagnostic tool that generates computer images of the body’s internal tissues and organs. Unlike many diagnostic procedures used to view internal organs, MRI is not invasive – that is, nothing enters the body while MRI is being performed. Instead, MRI uses high-frequency radio waves to create images based on magnetic fields created by hydrogen atoms in the body. The technique produces two-dimensional images of slices of the body.

MRI is used to diagnose a wide range of conditions, including those affecting the brain, liver, chest, heart and reproductive organs.

For more information, see MRI (Magnetic Resonance Imaging).

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