MRI

UK: ˌem ɑːr ˈaɪ | US: ˌem ɑːr ˈaɪ

Definition

  1. n. A medical imaging technique that uses strong magnetic fields and radio waves to generate detailed images of the internal structures of the body (abbreviation of Magnetic Resonance Imaging).

Structure
M <magnetic>R <resonance>I <imaging>
Etymology

MRI is an initialism derived from the phrase Magnetic Resonance Imaging. Each letter represents a key component of the technology:

  • Magnetic refers to the powerful magnetic field used to align atomic nuclei.
  • Resonance describes the absorption and emission of radiofrequency energy by the nuclei.
  • Imaging highlights the process of creating visual representations of internal body structures.
    The term emerged in the late 20th century as the technology became a cornerstone of modern diagnostic medicine.
Examples

  1. The doctor ordered an MRI to examine the patient's brain for abnormalities.

  2. Unlike X-rays, MRI does not use ionizing radiation, making it safer for repeated use.

  3. The MRI scan revealed a torn ligament in her knee.

  4. Patients with metal implants may not be eligible for an MRI due to safety risks.

  5. Researchers are developing faster MRI techniques to reduce scan times.