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
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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