Patent ID: 7579838

Claim:
A magnetic resonance imaging apparatus comprising: a cryogenic container; a field-of-view elongation coil mounted in the cryogenic container and having a plurality of positive (+ve) turns and a plurality of negative (−ve) turns; a geometrically asymmetrical magnet coil being mounted in the cryogenic container, having a plurality of positive (+ve) turns and a plurality of negative (−ve) turns, wherein the geometrically asymmetrical magnet coil is operable to generate a magnetic field having a homogenous elongated field-of-view when current is present in the elongation coil and the geometrically asymmetrical magnet coil, wherein a ±5 ppm contour line of the generated homogenous elongated field-of-view is non-spherical; and a shield coil mounted in the cryogenic container.