An apparatus for influencing and/or detecting magnetic particles in a field of view, wherein the field of view comprises at least one subfield of interest covering at least a portion of an object of interest, wherein the object of interest contains magnetic particles, and wherein the apparatus has at least two different detection modes, encompassing a high resolution detection mode and a low resolution detection mode, which apparatus comprises: - selection means comprising a selection field signal generator unit and selection field elements for generating a magnetic selection field having a pattern in space of its 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 field of view, wherein in the first sub-zone the magnetization of the magnetic particles is not saturated and wherein in the second sub-zone the magnetization of the magnetic particles is saturated, - drive means comprising a drive field signal generator unit and drive field coils (136a, 136b, 136c) for changing the position in space of at least the first sub-zone in the field of view by means of a magnetic drive field so that the magnetization of the magnetic particles contained in said object of interest changes locally, - receiving means comprising at least one signal receiving unit and at least one receiving coil for acquiring detection signals, which detection signals depend on the magnetization in at least a portion of the field of view, which magnetization is influenced by the change in the position in space of the at least first sub-zone, - a control unit for controlling the signal receiving unit according to the detection mode, wherein in the high resolution detection mode a set of high resolution detection signals is acquired and in the low resolution detection mode a set of low resolution detection signals is acquired, wherein the set of high resolution detection signals depends on the magnetization of the at least one subfield of interest and the set of low resolution detection signals depends on the magnetization of at least one adjacent subfield being arranged adjacent to the at least one subfield of interest, and - a reconstruction unit for reconstructing a particle distribution quantity characterizing a spatial distribution of the magnetic particles within at least a portion of the object of interest, wherein the particle distribution quantity is reconstructed depending on the set of high resolution detection signals and the set of low resolution detection signals. - selection means comprising a selection field signal generator unit and selection field elements for generating a magnetic selection field having a pattern in space of its 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 field of view, wherein in the first sub-zone the magnetization of the magnetic particles is not saturated and wherein in the second sub-zone the magnetization of the magnetic particles is saturated, - drive means comprising a drive field signal generator unit and drive field coils (136a, 136b, 136c) for changing the position in space of at least the first sub-zone in the field of view by means of a magnetic drive field so that the magnetization of the magnetic particles contained in said object of interest changes locally, - receiving means comprising at least one signal receiving unit and at least one receiving coil for acquiring detection signals, which detection signals depend on the magnetization in at least a portion of the field of view, which magnetization is influenced by the change in the position in space of the at least first sub-zone, - a control unit for controlling the signal receiving unit according to the detection mode, wherein in the high resolution detection mode a set of high resolution detection signals is acquired and in the low resolution detection mode a set of low resolution detection signals is acquired, wherein the set of high resolution detection signals depends on the magnetization of the at least one subfield of interest and the set of low resolution detection signals depends on the magnetization of at least one adjacent subfield being arranged adjacent to the at least one subfield of interest, and - a reconstruction unit for reconstructing a particle distribution quantity characterizing a spatial distribution of the magnetic particles within at least a portion of the object of interest, wherein the particle distribution quantity is reconstructed depending on the set of high resolution detection signals and the set of low resolution detection signals.