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  4. Fast and artifact reducing joint multi-patch MPI reconstruction
 
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Fast and artifact reducing joint multi-patch MPI reconstruction

Citation Link: https://doi.org/10.15480/882.4412
Publikationstyp
Journal Article
Date Issued
2022-03-21
Sprache
English
Author(s)
Zdun, Lena  
Boberg, Marija  orcid-logo
Brandt, Christina  
Institut
Biomedizinische Bildgebung E-5  
TORE-DOI
10.15480/882.4412
TORE-URI
http://hdl.handle.net/11420/12576
Journal
International journal on magnetic particle imaging  
Volume
8
Issue
1, Suppl 1
Article Number
2203042
Citation
International Journal on Magnetic Particle Imaging 8 (1, Suppl 1): 2203042 (2022)
Publisher DOI
10.18416/ijmpi.2022.2203042
Scopus ID
2-s2.0-85128274441
Publisher
Infinite Science Publishing
The method of magnetic particle imaging (MPI) has a limited field of view due to physiological constraints. It is thus necessary to enlarge the field of view by a multi-patch approach in order to cover larger volumes. During reconstruction, truncation artifacts arise at the patches boundaries. We apply stochastic primal-dual hybrid gradient method to jointly reconstruct multi-patch magnetic particle images. We are thus able to apply a regularization taking into account neighborhood structures, not only on one patch but over all patches. Our experiments show that the quality of our reconstructions is significantly higher than those obtained by Kaczmarz method. Moreover, a joint reconstruction considerably reduces the computational costs compared to multiple single-patch reconstructions.
DDC Class
004: Informatik
610: Medizin
Funding(s)
Modellierung, Simulation und Optimierung mit fluiddynamischen Anwendungen  
Funding Organisations
Deutsche Forschungsgemeinschaft (DFG)  
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
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