Magnetic resonance imaging (MRI) is a diagnostic exam that uses a magnetic field and computer-generated radio waves to create detailed images of the organs and tissues in the body.
An MRI machine is a large, tube-shaped magnet that temporarily realigns water molecules in the patient’s body and emits radio waves that cause these aligned atoms to produce faint signals, which are then used to create cross-sectional MRI images.
An MRI of the brain and spinal cord can be done to help diagnose:
An MRI of the bones and joints can be done to help identify:
An MRI is not safe for patients who have metal or electronic devices in their body, such as: