Subsequent MRI configuration dependent eddy current compensation

A method of operating a magnetic resonance imaging system with regard to generating a gradient magnetic field by at least one magnetic gradient coil of a gradient coil system, the method comprising steps of:

• selecting a predetermined electrical current profile to be provided to the at least one magnetic gradient coil in accordance with a desired magnetic resonance examination mode;
• checking for receipt of information regarding a presence of an additional device within an inner region of the magnetic resonance imaging system that is defined by a predetermined maximum distance to an outer surface of a virtual cylinder that envelops the at least one magnetic gradient coil;
• providing the predetermined electrical current profile to the at least one magnetic gradient coil if a result of the checking turns out to be negative;
• if a result of the checking turns out to be positive:
• based on the received information, selecting a predetermined parameter set corresponding to the additional device present in the inner region of the magnetic resonance imaging system from a plurality of predetermined parameter sets,
• modifying the predetermined electrical current profile by using the selected predetermined parameter set, and
• providing the modified electrical current profile to the at least one magnetic gradient coil.

A magnetic resonance imaging system which includes one or more non-transitory computer readable memories configured to store pulse sequences including gradient pulse profiles and one or more processors configured to modify the gradient pulse profiles to compensate for eddy currents and supply the modified gradient pulse profiles to one or more gradient coil drivers, the magnetic resonance imaging system being adapted to receive one or more of a plurality of additional devices, wherein the improvement comprises:

• the one or more memories being configured to store a plurality of parameter sets configured to modify the gradient pulse profiles, each parameter set corresponding to one of the additional devices;
• one or more detection devices configured to sense presence, position, and orientation of one or more of the additional devices in an imaging region of the magnetic resonance imaging system;
• the one or more processors being configured to receive an identification of the one or more additional devices present in the imaging region, select one or more of the plurality of parameter sets corresponding to the one or more present additional devices, receive the sensed positions and orientations of the one or more additional devices, and further modify the gradient pulse profiles on the basis of the received one or more parameter sets, the received positions, and the received orientations, magnetic resonance imaging being conducted using the further modified gradient pulse profiles.