Temperature mapping via relaxation-based color MPI

Abstract

In magnetic particle imaging (MPI), the relaxation behavior of the nanoparticles has been exploited to expand quantitative mapping capabilities of MPI to applications such as viscosity mapping and temperature mapping. We have previously proposed a technique called TAURUS to estimate the relaxation time constant directly from the MPI signal, and demonstrated its viscosity mapping capabilities via imaging experiments. In this work, we extend TAURUS to demonstrate its temperature mapping capability via 1D imaging experiments at two different temperatures.