Patent ID: 8350566

Claim:
A magnetic particle imaging (MPI) apparatus configured for imaging a subject, comprising: a magnet unit that generates a magnetic field in order to form a non-magnetic field area within a detection space; a modulation coil that magnetizes magnetic particles that have been injected into the subject by applying a modulation magnetic field into the detection space into which the subject can be placed; a detection coil within the detection space that detects a change in a magnetic flux in the injected magnetic particles, the detection coil being interlinked with the modulation coil and is disposed in order to suppress an influence caused by a magnetic flux of the modulation magnetic field applied by the modulation coil and included in the detected magnetic flux; and an image processing unit that forms an image of a distribution of the magnetic particles based on the change in the magnetic flux in the injected magnetic particles detected by the detection coil, wherein the detection coil is disposed positionally fixed in order to align a center axis of the detection coil running through a center of the detection coil to be substantially orthogonal to magnetic flux of the modulation magnetic field being applied by the modulation coil at an intersection defined by where the magnetic flux and the center axis of the detection coil cross one another, in the detection space, so that mutual inductance produced with the modulation coil becomes substantially zero.