Patryk Szwargulski, M.Sc.
Universitätsklinikum Hamburg-Eppendorf (UKE)
Sektion für Biomedizinische Bildgebung
2ter Stock, Raum 203
Technische Universität Hamburg (TUHH)
Institut für Biomedizinische Bildgebung
Gebäude E, Raum 4.044
Am Schwarzenberg-Campus 3
- Magnetic Particle Imaging
- Image Reconstruction
- Signal and Image Processing
In 2015 Patryk Szwargulski graduated with a master's degree thesis on Fast Reconstruction of Magnetic Particle Imaging Data using the Focusfields. Currently he is a PhD student in the group of Tobias Knopp for experimental Biomedical Imaging at the University Medical Center Hamburg-Eppendorf and the Hamburg University of Technology.
|Title: Moving table magnetic particle imaging: a stepwise approach preserving high spatio-temporal resolution|
|Written by: P. Szwargulski, N. Gdaniec, M. Graeser, M. Möddel, F. Griese, K. M. Krishnan, T. M. Buzug, and T. Knopp|
|in: Journal of Medical Imaging 2018|
|Volume: 5 Number: 4|
|on pages: 046002|
Note: article, multi-patch
Abstract: Magnetic particle imaging (MPI) is a highly sensitive imaging method that enables the visualization of magnetic tracer materials with a temporal resolution of more than 46 volumes per second. In MPI, the size of the field of view (FoV) scales with the strengths of the applied magnetic fields. In clinical applications, those strengths are limited by peripheral nerve stimulation, specific absorption rates, and the requirement to acquire images of high spatial resolution. Therefore, the size of the FoV is usually a few cubic centimeters. To bypass this limitation, additional focus fields and/or external object movements can be applied. The latter approach is investigated. An object is moved through the scanner bore one step at a time, whereas the MPI scanner continuously acquires data from its static FoV. Using a 3-D phantom and dynamic 3-D in vivo data, it is shown that the data from such a moving table experiment can be jointly reconstructed after reordering the data with respect to the stepwise object shifts and heart beat phases.