What is an MRI scan?

MRI examination, or magnetic resonance imaging, is an advanced medical diagnostic technique. It is based on the properties of hydrogen atoms in a magnetic field. By using a strong magnetic field and radiofrequency pulses to excite hydrogen atoms in the human body, MRI induces them to emit resonance signals. These signals are then processed by a computer to generate high-resolution images. MRI has many advantages, including no ionizing radiation, non-invasiveness, and excellent soft tissue contrast, enabling clear visualization of various internal structures such as the nervous system, muscles, and bones. Additionally, MRI offers multi-parameter and multi-sequence imaging capabilities, providing rich diagnostic information. In clinical practice, MRI is widely used for examining multiple areas of the body, including the brain, spine, joints, and abdomen, offering physicians accurate diagnostic evidence.