An MRI test is used to produce detailed images of the body’s internal structures. It can provide information about the brain, spinal cord, bones, joints, organs, and soft tissues. MRI uses a powerful magnetic field, radio waves, and a computer to create images of the body. The test can be used to detect abnormalities, such as tumors, inflammation, or injuries, and can also be used to monitor the progression or response to treatment of a known medical condition.