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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