1.
[syn: magnetic resonance imaging, MRI]
The Collaborative International Dictionary of English v.0.48:
magnetic resonance imaging \mag*net"ic res"on*ance im"ag*ing\ n.
(Medicine)
a medical diagnostic procedure utilizing the phenomenon of
nuclear magnetic resonance to generate images of internal
parts of the body. It depends on the differential absorption
of electromagnetic radiation by different types of living
tissue in a magnetic field. It is complementary to X-ray
imaging in that the softer tissue show more prominently in
magnetic resonance images, rather than bone, as with X-rays.
It is a non-invasive procedure, allowing such images to be
obtained without penetration of the tissue by objects. It is
abbreviated MRI. As with computerized tomography, the
results are usually presented as images of sequential planar
sections of that part of the body of concern to the
physician.
[PJC]
WordNet (r) 3.0 (2006):
magnetic resonance imaging
n 1: the use of nuclear magnetic resonance of protons to produce
proton density images [syn: magnetic resonance imaging,
MRI]