  Magnetic particle imaging (MPI) is an imaging method that can visualize
magnetic nanoparticles in positive contrast, without radiation exposure.
Recently, we proposed an image reconstruction method for projection-based MPI
(pMPI), in which the system function was incorporated into the simultaneous
algebraic reconstruction technique and the total variation minimization was
used to suppress noise and artifacts. This study investigated the usefulness of
our method for accelerating pMPI through simulation and phantom experiments
with varying number of projections. The present results suggest that our method
is useful for accelerating pMPI without deteriorating the image quality.
