Workshop Biosignale 2026, Innsbruck, 25-27, February, 2026, Austria
Freie Schlagworte
magnetic nanoparticles ; magnetorelaxometry imaging ; flow ; cerebral aneurysms
Zusammenfassung
Magnetorelaxometry imaging (MRXI) is a non-invasive technique used for localization and quantification of magnetic nanoparticles (MNPs) within a defined region. In this work, we investigated the localization of a fluid MNP bolus in motion with an iron concentration of 0.70 mg/ml using an MRXI system, which was designed and developed in our previous work to track the MNP movement. In this work, the experiments were performed at different flow velocities ranging from 2.9 mm/s to 10.6 mm/s, within a tubular phantom. The reconstructed images of the MNP bolus show that the localization aligns well with the ground truth images at all flow velocities with a minimum temporal resolution of 1.1 s and an image resolution of approximately (6.3 × 6.3 × 2.1) mm³. This approach has potential for the diagnosis of life-threatening conditions such as cerebral aneurysms using a low iron concentration.
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Rechteinformation
CC BY 4.0 ; Creative Commons Attribution 4.0 License
Themenbereich der Metrologie
Metrologie in der Medizin
Zitierung
Arsalani, S., Körber, R., Baumgarten, D., & Wiekhorst, F. (2026). Localization of a magnetic nanoparticle bolus in motion using magnetorelaxometry imaging. Workshop Biosignale 2026, Innsbruck, 25-27, February, 2026, Austria. https://doi.org/10.15203/99106-194-6-10
