Abstract #2329

Microstructure Phase Imaging at 9.4T of the Human Brain Applying Stepwise Filtering of Background Fields

Johannes Lindemeyer¹, Ana-Maria Oros-Peusquens¹, N.-Jon Shah¹,²

¹Institute of Neuroscience and Medicine - 4, Forschungszentrum Jlich, Jlich, Germany; ²Department of Neurology, Faculty of Medicine, JARA, RWTH Aachen University, Aachen, Germany

This abstract describes a multi-step algorithm to efficiently remove B0 background field shifts from high-resolution phase data at 9.4T. Influences from static field inhomogeneities are accounted for as well as distortions induced by susceptibility distributions with arbitrary geometry residing outside and inside the field-of-view, such as air/water interfaces. The presented algorithm is successfully applied to phase images of the cerebellum in a post mortem brain.