International Journal on Magnetic Particle Imaging
Vol 3 No 2 (2017): Int J Mag Part Imag

Research Articles

A versatile MPI System Function Viewer

Main Article Content

Ulrich Heinen (Hochschule Pforzheim), Alexander Weber (ITK Engineering AG), Jochen Franke (Bruker BioSpin MRI GmbH), Heinrich Lehr (Bruker BioSpin MRI GmbH), Olaf Kosch (Physikalisch-Technische Bundesanstalt, Berlin)

Abstract

Magnetic Particle Imaging (MPI) is a versatile new imaging technique for mapping the spatial distribution of magnetic nanoparticle (MNP) based tracers in vivo and in real time with high sensitivity. Reconstruction of 3D-encoded MPI data with high temporal resolution so far relies on the so-called system matrix approach. Here, the image is obtained by solving a linear system of equations involving pre-measured data from a point sample moved over the later reconstrution grid. A study of these pre-measured data, or system matrices, is a useful way of gaining insight into the MNP properties. Unfortunately, the size of the datasets, which easily reaches dozens of gigabytes, presents an obstacle for a visual inspection and analysis. Here we present a tool for convenient inspection of MPI system functions with versatile navigation and visualisation features.

Article Details