The invention relates to magnetic tracking system that is particularly adapted for a combination with an imaging system, for example with a rotational X-ray device (10). The magnetic tracking system comprises pairs of first (21a, 22a, 23a) and second (21b, 22b, 23b) field generators that are disposed on opposite sides of a measuring volume (V). The first field generators may particularly be attached to the radiation source (13) and the second field generators (21b, 22b, 23b) to the detector (11) of an X-ray device. Moreover, the first and second field generators may be constituted by coils with opposite magnetic polarity. Due to the attachment of the field generators to the X-ray device, motions of the X-ray device do not disturb the magnetic field (B) in a frame of reference fixed to the imaging system.