“Useful Knowledge about Magnetic Resonance Imaging” Watch Video
Roberts' lecture details the mechanisms by which nuclear
magnetic resonance (NMR) spectroscopy works as well as the ways
in which magnetic resonance imaging (MRI) is derived from NMR.
Roberts also discusses the analysis of MRI and the technique's
significance in the study of anatomy and medicine. Further
advancements in the field, including Echo-Planar Imaging, are
also mentioned. As Roberts notes, by applying different
gradients of magnetic fields the positions of atomic nuclei can
be determined. From here, slices of a three-dimensional image,
such as a human body, can be mapped out. The contrast in MRIs is
produced by the different concentrations of water in different
parts of the body like bone, muscle, and blood. Examination of
these contrasts can then be used to diagnose patients with
diseases like cancer, without having to perform investigative
surgery. Related Names: Linus Pauling