Patent ID: 6822452
Filing Date: 2004-11-23
Classification: G01R

Abstract:
A magnetic resonance imaging apparatus (1) comprising a gradient coil assembly (3, 4, 5) for generating gradient magnetic fields in an imaging volume, the gradient coil assembly (3, 4, 5) comprising at least three gradient coils (3, 4, 5) for generating three different gradient magnetic fields,wherein a conductive element (71, 72, 73) is provided in close proximity to at least one of the gradient coils (3, 4, 5) in order to compensate self-induced eddy currents in the gradient coil assembly (3, 4, 5), wherein each of the gradient coils comprise a pair of coil elements arranged in different planar axis and connected to an independently controlled power supply, and wherein the conductive element (71, 72, 73) encompasses a substantially smaller surface area than the at least one of the aradient coils (3, 4, 5).