Magnetic resonance imaging (MRI) is a diagnostic technique that provides high quality cross-sectional images of organs and structures within the body without x-rays or radiation.

During magnetic resonance imaging (MRI), the patient lies inside a massive, hollow, cylindrical magnet and is exposed to short bursts of a powerful magnetic field.

The nuclei (protons) of the body's hydrogen atoms normally point randomly in different directions, but in a magnetic field, they line up parallel to each...