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Abstract #0693

Improved Body Quantitative Susceptibility Mapping by Using a Variable-Layer Single-Min-Cut Graph-Cut Algorithm for Field-Mapping

Christof Böhm1, Maximilian N. Diefenbach1, Jakob Meineke2, Axel Haase3, and Dimitrios C. Karampinos1

1Department of Diagnostic and Interventional Radiology, Technical University of Munich, Munich, Germany, 2Philips Research, Hamburg, Germany, 3Munich School of Bioengineering, Technical University of Munich, Munich, Germany

Body QSM relies on accurate magnetic field-mapping that accounts for the presence of fat and is robust to large background fields. This work proposes the application of a single-min-cut graph-cut-based pipeline aiming at accurate, non-smoothed and unwrapped field-mapping without the need for further computationally expensive or problematic voxel-wise fitting or unwrapping techniques. The used body QSM pipeline achieves higher accuracy in field-map and susceptibility values, which is demonstrated in a numerical phantom and in in-vivo spine datasets.

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