Patent ID: 8666473

Claim:
An arrangement for influencing and/or detecting magnetic particles in a region of action and for magnetic imaging of an examination object in said region of action, which arrangement comprises: a set of coils, wherein, in a magnetic particle imaging mode, the set of coils are operable to generate a stationary magnetic gradient field having a pattern in space of a magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, a temporally changing homogeneous magnetic field for changing the position in space of the region of action and for changing the position in space of the two sub-zones in the region of action so that a magnetization of the magnetic material changes locally, and wherein, in a magnetic resonance imaging mode, the set of coils are operable to generate a substantially homogeneous main magnetic field in a selected and changeable direction, and a magnetic gradient field in at least two selected and changeable directions; an excitation means configured to excite magnetic spins in the region of action to precess; a receiving means configured to selectively acquire magnetic resonance signals and detection signals depending on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone; signal generation means configured to generate and provide field generation signals to said set of coils; control means configured to control said signal generation means; and processing means configured to process said detection signals and said magnetic resonance signals.