Title :
1D-image reconstruction for magnetic particle imaging using a hybrid system function
Author :
Gruettner, M. ; Graeser, M. ; Biederer, S. ; Sattel, T.F. ; Wojtczyk, H. ; Tenner, W. ; Knopp, T. ; Gleich, B. ; Borgert, J. ; Buzug, T.M.
Author_Institution :
Inst. of Med. Eng., Univ. of Luebeck, Luebeck, Germany
Abstract :
Magnetic Particle Imaging is a promising imaging technique using iron-oxide nanoparticle tracers. The spatial distribution of these particles can be determined by solving a system of linear equations. This reconstruction is based on a system function that either has to be measured or can be calculated with given information about scanner topology and particle characteristics. This paper introduces a new approach combining both possibilities. A Magnetic Particle Spectrometer is used to obtain a hybrid system function. Furthermore, we will show that the hybrid system function can be successfully used for 1D-image reconstruction and potentially is an alternative to the measurement-based system function.
Keywords :
biomagnetism; image reconstruction; magnetic particles; medical image processing; topology; 1D-image reconstruction; hybrid system function; iron-oxide nanoparticle tracers; linear equations; magnetic particle imaging; magnetic particle spectrometer; measurement-based system function; scanner topology; Magnetic resonance imaging; Phantoms; Physics;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE
Conference_Location :
Valencia
Print_ISBN :
978-1-4673-0118-3
DOI :
10.1109/NSSMIC.2011.6152687