Magnet assembly for use in medical magnetic resonance imaging includes means
for increasing flux generation in the gap region to provide the capability of scanning
smaller volume regions of a patient at increased levels of scanning resolution.
The means for increasing flux generation is mechanical or electromagnetic, is coupled
to each of the polar regions and maintains the gap region sufficiently large and
unobstructed to allow for access to the patient by several persons during scanning.
Tapered outer walls of the polar region proximate the gap region further enhance
accessibility to the patient during scanning.