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Abstract #1311

Motion simulation and correction validation using MR tagging

Ali Aghaeifar1,2, Abbas Nasiraei Moghaddam3, and Klaus Scheffler1,4

1Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 2IMPRS for Cognitive and Systems Neuroscience, University of Tübingen, Tübingen, Germany, 3Biomedical engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, 4Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany

Involuntary subject motion is a well-known problem in MR imaging. Motion simulation is an important step to evaluate correction performance and motion induced artifacts. Here we introduce a new approach based on MR tagging to simulate desired motion pattern on a plain phantom. We employed SPAMM method to generate grid tags with a specified orientation and position. Grid tags were rotated and shifted with a desired pattern per TR. Correspondingly, the imaging slice followed the pattern to compensate the rotation and translation of the tags. Employing this approach, we could simulate motion in 5 DOF.

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