Scheffler, KonradKonradSchefflerBoberg, MarijaMarijaBobergKnopp, TobiasTobiasKnopp2022-05-102022-05-102022-03-21International Journal on Magnetic Particle Imaging 8 (1, Suppl 1): 2203019 (2022)http://hdl.handle.net/11420/12573In multi-patch magnetic particle imaging an artifact-free image can be obtained by using a joint reconstruction and measuring the system matrices not only in the field-of-view but also in a huge overscan. This leads to a long calibration time and heavy memory consumption and therefore an unsuitability of this method for large three-dimensional measurements. In this work, we propose to only measure the system matrices in the field-of-view and to use a diffusion based extrapolation step to extend the system matrices computationally into the overscan. In this way, we massively reduce the calibration time while maintaining a nearly artifact-free image.en2365-903320221, Suppl 1Infinite Science Publishinghttps://creativecommons.org/licenses/by/4.0/InformatikMedizinJournal Article10.15480/882.440510.18416/ijmpi.2022.220301910.15480/882.4405Other