Magneettikuvauksia

Magneettikuvauksia, commonly known as magnetic resonance imaging (MRI), is a non-invasive medical imaging technique that uses strong magnetic fields and radio waves to create detailed images of internal body structures. Unlike X-rays or CT scans, MRI does not use ionizing radiation, making it a safer option for repeated examinations. The process involves placing the patient in a powerful magnetic field, which aligns the body's water molecules. Radiofrequency pulses are then applied, which temporarily knock these molecules out of alignment. As the molecules return to their original alignment, they emit radio signals that are detected by the MRI scanner. A computer processes these signals to generate cross-sectional images of tissues and organs. MRI is particularly useful for visualizing soft tissues such as the brain, spinal cord, muscles, ligaments, and tendons. It plays a crucial role in diagnosing a wide range of conditions, including tumors, neurological disorders, joint injuries, and heart disease. The images produced by MRI can reveal subtle abnormalities that might not be visible with other imaging methods.