title: Steering of Magnetic Devices With a Magnetic Particle Imaging System.
abstract: Small magnetic devices have been steered in arbitrary direction and with variable force using a preclinical demonstrator system for magnetic particle imaging (MPI). Fast localization due to the high imaging rate of over 40 volumes/s and strong forces due to the high field gradient of more than 1 T/m render an MPI system, a good platform for image-guided steering of magnetic devices. In this paper, these capabilities are demonstrated in phantom experiments, where a closed feedback loop has been realized to exert translational forces in horizontal and vertical direction on a magnetic device moving in a viscous medium. The MPI system allows for the controlled application of those forces by combining variable homogeneous fields with strong field gradients.
authors.forename: Nils
authors.initials: N
authors.lastname: Nothnagel
authors.forename: Jurgen
authors.initials: J
authors.lastname: Rahmer
authors.forename: Bernhard
authors.initials: B
authors.lastname: Gleich
authors.forename: Aleksi
authors.initials: A
authors.lastname: Halkola
authors.forename: Thorsten M
authors.initials: TM
authors.lastname: Buzug
authors.forename: Jorn
authors.initials: J
authors.lastname: Borgert
mesh_terms: D000465:Algorithms; D003952:Diagnostic Imaging / Q000379:methods*; D005246:Feedback; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008280:Magnetics / Q000379:methods*; D058185:Magnetite Nanoparticles; D019047:Phantoms, Imaging
chemical_list: D058185:Magnetite Nanoparticles