Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 44: Magnetic imaging (Experimental techniques)

MA 44.3: Vortrag

Donnerstag, 4. April 2019, 10:00–10:15, H53

A Concept for a Magnetic Particle Imaging Scanner with Halbach-Arrays — •Anna C. Bakenecker1, Jonas Beuke1, Peter Blümler2, Anselm von Gladiss1, Thomas Friedrich1, and Thorsten M. Buzug11Institute of Medical Engineering, University of Lübeck, Germany — 2Insititute of Physics, University of Mainz, Germany

Magnetic particle imaging (MPI) is a new medical imaging technique that enables three-dimensional real-time imaging of magnetic nanoparticles used as tracer material. Although it is not in clinical use yet, it is highly promising, since no ionizing radiation is necessary. Therefore, MPI is suitable as an interventional imaging technique. The upscaling of MPI is a major challenge as even preclinical scanners featuring a small bore have an immense power consumption for the electromagnetical generation of the desired magnetic field geometries. A concept is proposed, which consists of mechanically rotatable Halbach-Arrays in dipole and quadrupole configurations. Even though permanent magnets are used, this concept features a high flexibility in terms of adjusting the magnetic field geometries. It is possible to adjust the field gradient, the field of view as well as the sampling rate. Therefore, it is possible to choose between overview scanning, real-time imaging and detailed visualization of a chosen region of interest. A short introduction into MPI will be given and the concept of the proposed scanner will be explained.

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