MRI, or magnetic resonance imaging, is a medical imaging technique that uses strong magnetic fields and radio waves to create detailed images of the internal structures of the body. This non-invasive imaging modality is commonly used to diagnose and monitor a wide range of medical conditions, including tumors, injuries, and diseases of the brain, spine, joints, and other organs. MRI images provide high resolution and detailed anatomical information, making it a valuable tool for healthcare providers in clinical assessment and treatment planning.