Resonance imager mobile van magnetic field homogeneity shift compensation
 In the installation of a superconducting magnet for magnetic resonance imaging at a preselected position in a mobile van, preselected curvilinear magnetic segments are applied to preselected locations on the exterior of the magnet to counteract magnet inhomogeneities in the imaging bore which would otherwise occur because of magnetic material in the van structure. 
General Electric Company
G
G01R
inventional
Xianrui Chung-Yih Steven Ho-Chong Timothy John Minfeng Bu-Xin
Huang Ho Wong Havens Xu Xu