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Abstract #2371

Evidence of Tissue Conductivity as a Source of Signal Inhomogeneities in Ultrashort Echo Time (UTE) Imaging

Ferdinand Schweser1, 2, Li Huang, 13, Karl-Heinz Herrmann1, Martin Krmer1, Andreas Deistung1, Jrgen R. Reichenbach1

1Medical Physics Group, Institute of Diagnostic and Interventional Radiology I, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany; 2School of Medicine, Friedrich Schiller University Jena, Jena, Germany; 3Abbe School of Photonics, Faculty for Physics and Astronomy, Friedrich Schiller University Jena, Jena, Germany

In this contribution we investigated with a dedicated phantom experiment B1+ contributions to UTE signal inhomogeneities and showed that B1-related effects substantially affect the UTE signal. By applying Electric Property Tomography (EPT) to the complex-valued UTE signal we demonstrate that B1-effects due to the underlying tissue electrical conductivity are a major source of both magnitude and phase UTE signal inhomogeneity.