微波工程师有关磁共振成像的观点:An overview on how MRI works has been given. It reflects the viewpoint of microwave engineers rather than the classical one adopted by physicists.
Compared to microwave imaging, which maps the 3-D steady-state permittivity distribution of the imaged object, MRI can be viewed as mapping the 3-D transient
permeability distribution created by applying a very strong static magnetic field.