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Abstract #3190

A Monte Carlo method for overcoming the edge artifacts in MRI-based electrical conductivity mapping

Li Huang 1 , Ferdinand Schweser 2 , Karl-Heinz Herrmann 2 , Martin Krmer 2 , Andreas Deistung 2 , and Jrgen Rainer Reichenbach 2

1 in-vivo-MR Group, Faculty 02 (Biology/Chemistry), University Bremen, Bremen, Bremen, Germany, 2 Medical Physics Group, Institute of Diagnostic and Interventional Radiology I, Jena University Hospital - Friedrich Schiller University Jena, Jena, Thuringia, Germany

MRI-based conductivity mapping is a promising new MR technique with great potential for clinical applications. Literature algorithms for reconstructing conductivity maps suffer from edge artifacts near tissue interfaces, which restrict the reliability of the conductivity information. To overcome this limitation we propose a novel Monte Carlo method, which was applied in a dedicated phantom and in vivo experiment. Resulting conductivity maps showed improved SNR with well delineated anatomic structures, reduced edge artifacts, and reasonable conductivity values.

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