MRI is an exam that combines the power of electromagnetic energy, radio waves, and computerized image processing to create clear pictures of organs and tissues inside the body. In some cases, MRI gives physicians the ability to see body structures that are not visible in other types of imaging exams. Doctors order MRI exams in a wide range of diagnostic situations, including:
- Looking for signs of cancer
- Detecting signs of disease in the heart and circulatory system
- Confirming or identifying the cause of a stroke
- Diagnosing injuries or disorders of the muscles, bones, and joints
- A procedure called an Arthrogram may also be used. Arthrography—X-ray guided injection of anesthetic and contrast agent into the joint of interest. The purpose is to better image the internal anatomy of the joint for more accurate diagnosis and surgical planning.