Measurement and Simulation of Susceptibility Artifacts in Variable-TE Radial MRI: Application in an MR-safe Guidewire
Katharina E. Schleicher1, Stefan Kroboth1, Klaus Düring2, Michael Bock1, and Axel Joachim Krafft1,3,4
1Dept. of Radiology - Medical Physics, University Medical Center Freiburg, Freiburg, Germany, 2MaRVis Medical GmbH, Hannover, Germany, 3German Cancer Consortium (DKTK), Heidelberg, Germany, 4German Cancer Research Center (DKFZ), Heidelberg, Germany
A simulation
framework is presented to optimize radial acquisition schemes with variable
echo times which are designed to minimize the directional anisotropy of the
artifact of an MR-safe guidewire. The simulation results are compared to
measurements. We could theoretically and experimentally verify that the
homogeneity of the artifact can be improved via the variable-TE method.
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