1. Steering of Magnetic Devices With a Magnetic Particle Imaging System.
- Author
-
Nothnagel, Nils, Rahmer, Jurgen, Gleich, Bernhard, Halkola, Aleksi, Buzug, Thorsten M., and Borgert, Jorn
- Subjects
- *
MAGNETIC particle imaging , *MAGNETIC devices , *IMAGING phantoms , *CLOSED loop systems , *MAGNETIC fields - 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. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
- Full Text
- View/download PDF