magnetic resonance imaging
The visualisation of the distribution of nuclear spins (usually water) in a body by using a magnetic field @G02669@ (NMR imaging). A similar technique, but less widely used, is to visualise the distribution of @P04404@ centres (EPR imaging).
PAC, 1997, 69, 1251. (Glossary of terms used in bioinorganic chemistry (IUPAC Recommendations 1997)) on page 1284 [Terms] [Paper]