Micheal Ledwig

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Magnetic particle imaging (MPI) is a novel high-resolution medical imaging method that does not use ionizing radiation, but safe iron oxide nanoparticles as contrast agents. By employing magnetite (Fe<sub>3</sub>O<sub>4</sub>) multi-granule nanoclusters (MGNCs), one has two control parameters: the diameter of the particles and that of granules in single(More)
Introduction: Optimizing the SNR of NMR applications can be achieved by using low noise preamplifiers. To avoid signal losses and external perturbations it is advantageous to connect preamplifiers as close to the coils as possible. For transmit/receive coils this implies in general additional wiring for transmission and tuning/matching. In this work we(More)
INTRODUCTION Shimming a magnetic field usually requires an additional set of complex coils which act independently from the linear gradient system used for MRI. Therefor a unique coil has to be developed for each field order, which is very extensive. In this study a novel matrix gradient design is presented, which is capable of generating both linear(More)
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