Publisher DOI: 10.18416/ijmpi.2022.2203042
Title: Fast and artifact reducing joint multi-patch MPI reconstruction
Language: English
Authors: Zdun, Lena 
Boberg, Marija  
Brandt, Christina 
Issue Date: 2022
Source: International Journal on Magnetic Particle Imaging 8 (1) : 2203042 (2022)
Journal: International journal on magnetic particle imaging 
Abstract (english): 
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.
ISSN: 2365-9033
Institute: Biomedizinische Bildgebung E-5 
Document Type: Article
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