magnetic resonance imaging
- noun a technique that uses electromagnetic radiation to obtain images of invisible parts of a structure or the body’s soft tissues.
- The use of magnetic resonance to create cross-sectional images of internal body structures, in it, a patient is placed in an enclosure surrounded by powerful electromagnets which magnetically align the nuclei of certain atoms in the body. Then, radio waves are directed at these nuclei, usually the proton in hydrogen, and withdrawn, so that when the nuclei revert to their original state they emit radio signals which a computer utilizes to produce the desired images. It is a very sensitive and noninvasive procedure utilized to help study and diagnose a broad range of medical conditions, including cancer, heart disease, and musculoskeletal disorders. Its abbreviations are MRI, MR imaging, and MRI imaging. Also called nuclear magnetic resonance imaging.
- abbreviationMR Imaging
- noun a scanning technique which exposes the body to a strong magnetic field and uses the electromagnetic signals emitted by the body to form an image of soft tissue and cells.