Which imaging modality uses magnetic fields and radio waves to generate images?

Magnetic Resonance Imaging (MRI) is the imaging modality that utilizes magnetic fields and radio waves to create detailed images of the body's internal structures. The process involves placing the patient inside a strong magnetic field, which aligns the protons in the body. When radio waves are applied, these protons emit signals that are detected and transformed into images. MRI is particularly effective at imaging soft tissues, making it useful for evaluating conditions affecting the brain, muscles, and joints, among other areas.

Other imaging modalities work differently. X-ray imaging uses ionizing radiation to view the structure of bones and certain tissues, while CT scans employ multiple X-ray images taken from different angles and computer processing to create cross-sectional images. Ultrasound uses high-frequency sound waves to produce images, typically of soft tissues and organs, without the use of magnetic fields or ionizing radiation.