human
My doctor says I need to get an MRI. What is an MRI and why is it important?
assistant
An MRI (magnetic resonance imaging) scan uses magnetic fields to generate images of the body. It is a non-invasive diagnostic tool that provides detailed information about the structure and function of the brain, spinal cord and other organs. The test can detect abnormalities in the brain, such as tumors or strokes, which may not be apparent on a CT scan. It can also provide useful information for doctors to help them make decisions about treatment options.