magnetic resonance imaging
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Definition
Noun: A medical imaging technique that uses strong magnetic fields and radio waves to generate detailed images of the inside of the body. It is based on the principle of nuclear magnetic resonance to visualize the density and other properties of protons (primarily in water and fat molecules) within tissues.
Usage
Magnetic resonance imaging is used as a non-invasive diagnostic tool to examine organs, soft tissues, bones, and the nervous system. It is often referred to by its acronym, MRI.
Examples
- The doctor ordered magnetic resonance imaging to get a clearer picture of the patient's knee injury.
- Magnetic resonance imaging is particularly useful for examining the brain and spinal cord.
- Advances in magnetic resonance imaging technology have improved the detection of soft-tissue tumors.
Advanced Usage
- Functional magnetic resonance imaging (fMRI): A specialized application of MRI that measures brain activity by detecting changes associated with blood flow.
- Functional magnetic resonance imaging is a key tool in neuroscience research.
Variants and Related Words
- MRI (Noun): The common acronym for magnetic resonance imaging.
- She had an MRI scan last week.
- MRI Scanner (Noun): The machine used to perform magnetic resonance imaging.
- Magnetic Resonance (Noun): The physical principle upon which the imaging technique is based.
Synonyms
- MRI Scan: A common synonym referring to the procedure or the resulting images.
- NMR Imaging: An older, more technical term (NMR stands for Nuclear Magnetic Resonance).
Related Phrases
- To undergo an MRI / magnetic resonance imaging: To have the procedure performed.
- The patient had to undergo magnetic resonance imaging to confirm the diagnosis.
- MRI results / images: The pictures and data produced by the scan.
Noun
- the use of nuclear magnetic resonance of protons to produce proton density images