Determination of System Functions for Magnetic Particle Imaging

In Magnetic Particle Imaging, a new medical imaging modality, the relation between measured signals and the spatial distribution of the tracer particles is described by the system function. In existing scanners the system function is measured by moving a delta probe through the field-of-view and the particle response is measured. This procedure is time consuming, caused by the mechanical movement, and makes great demands on the hardware, because of the huge data amount that is measured. To speed up the determination of the system functions other methods have to be considered. In this work the model based and the hybrid system function will be compared to the measured one.