International Journal on Magnetic Particle Imaging IJMPI
Vol. 11 No. 1 Suppl 1 (2025): Int J Mag Part Imag
Towards SPION-Enhanced Real-Time Visualization of Onyx Embolization
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Copyright (c) 2025 Fabio Roeper, Mandy Ahlborg, Thomas Friedrich, Ankit Malhotra, Justin Ackers, Jörg Barkhausen, Roman Klöckner, Thorsten M. Buzug, Kerstin Lüdtke-Buzug, Franz Wegner

This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Magnetic particle imaging (MPI) is emerging as a promising technique for various clinical applications, including real-time monitoring of endovascular interventions. The use of liquid embolic agents is established for the therapy of vascular pathologies, e.g. malformations. To identify the timepoint of complete hardening is essential for the safe and effective use of such liquid embolization materials. In this study, we aimed to monitor the solidification process of the liquid embolic agent Onyx-20 by integration of superparamagnetic iron oxide nanoparticles (SPIONs). Our findings suggest that the observed differences in the magnetic signal throughout the solidification process are particularly advantageous for the application of multi-contrast MPI techniques, potentially enhancing the monitoring of embolization procedures.
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