{"entity": "publication", "iuid": "098ded15afe34761b12ff98624611e00", "timestamp": "2026-08-22T06:58:50.353Z", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/098ded15afe34761b12ff98624611e00.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/098ded15afe34761b12ff98624611e00"}}, "title": "Rapid TAURUS for Relaxation-Based Color Magnetic Particle Imaging.", "authors": [{"family": "Arslan", "given": "M Tunc", "initials": "MT"}, {"family": "Ozaslan", "given": "A Alper", "initials": "AA"}, {"family": "Kurt", "given": "Semih", "initials": "S"}, {"family": "Muslu", "given": "Yavuz", "initials": "Y"}, {"family": "Saritas", "given": "Emine Ulku", "initials": "EU"}], "type": "journal article", "published": "2022-12-00", "journal": {"title": "IEEE Trans Med Imaging", "issn": "1558-254X", "volume": "41", "issue": "12", "pages": "3774-3786", "issn-l": null}, "abstract": "Magnetic particle imaging (MPI) is a rapidly developing medical imaging modality that exploits the non-linear response of magnetic nanoparticles (MNPs). Color MPI widens the functionality of MPI, empowering it with the capability to distinguish different MNPs and/or MNP environments. The system function approach for color MPI relies on extensive calibrations that capture the differences in the harmonic responses of the MNPs. An alternative calibration-free x-space-based method called TAURUS estimates a map of the relaxation time constant, \u03c4 , by recovering the underlying mirror symmetry in the MPI signal. However, TAURUS requires a back and forth scanning of a given region, restricting its usage to slow trajectories with constant or piecewise constant focus fields (FFs). In this work, we propose a novel technique to increase the performance of TAURUS and enable \u03c4 map estimation for rapid and multi-dimensional trajectories. The proposed technique is based on correcting the distortions on mirror symmetry induced by time-varying FFs. We demonstrate via simulations and experiments in our in-house MPI scanner that the proposed method successfully estimates high-fidelity \u03c4 maps for rapid trajectories that provide orders of magnitude reduction in scanning time (over 300 fold for simulations and over 8 fold for experiments) while preserving the calibration-free property of TAURUS.", "doi": "10.1109/TMI.2022.3195694", "pmid": "35921341", "labels": [], "xrefs": [], "notes": [], "created": "2026-08-21T12:15:46.627Z", "modified": "2026-08-21T12:15:46.640Z"}