X-Rays and MRI scans are two standard imaging tests for diagnosing back pain. X-Rays provide images of the bones, revealing issues like fractures or osteoarthritis. However, they don't show problems with the muscles, spinal cord, or discs between the vertebrae.  On the other hand, a magnetic resonance imaging (MRI) scan offers a more detailed view. It shows issues with discs, muscles, ligaments, and the spinal cord without exposing patients to ionizing radiation.