International Journal on Magnetic Particle Imaging IJMPI
Vol 8 No 1 Suppl 1 (2022): Int J Mag Part Imag

Proceedings Articles

MPI-based spatio-temporal estimation of a temperature profile induced by an IR laser

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Oliver Buchholz  (Universitätsklinik Freiburg), Sébastien Bär  , Kulthisa Sajjamark  , Jorge Chacon-Caldera  , Jochen Franke  , Ulrich G. Hofman  


The separation of signals based on particle type, their environment or temperature has added a useful layer to the foundation of spatial MP imaging. The multi-color approach of signal reconstruction offers a far-reaching option for clinical interventions such as the controllable and precise application of hyperthermia. In this study, a multi-color reconstruction approach was applied to highlight the potential of MPI for temperature monitoring. For this purpose, we heated a solution of SPIO nanoparticles with a high-power laser and reconstructed the corresponding dynamic temperature maps by MPI data acquisition. A good temporal and spatial correlation between the MPI-based temperature maps and fiber optic thermometer measurements was observed.

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