Abstract #1833

Patient-specific respiratory liver motion analysis for individual motion-resolved reconstruction

Veronika J Spieker^1,2, Jonathan K Stelter³, Veronika A Zimmer², Kilian Weiss⁴, Rickmer F Braren³, Dimitrios Karampinos³, and Julia A Schnabel^1,2,5

¹Helmholtz Center Munich, Munich, Germany, ²School of Computation, Information and Technology, Technical University of Munich, Munich, Germany, ³Department of Diagnostic and Interventional Radiology, Technical University of Munich, Munich, Germany, ⁴Philips GmbH Market DACH, Hamburg, Germany, ⁵School of Biomedical Imaging and Imaging Sciences, King's College, London, United Kingdom

Synopsis

Keywords: Motion Correction, LiverRespiratory motion is a major source of artefacts in abdominal MRI and varies considerably across subjects. Motion-resolved strategies utilize the periodic nature of respiratory motion, but do not always consider absolute patient-specific motion information. The purpose of the present work is to develop a framework incorporating the patient-specific absolute body motion into a motion-resolved reconstruction (XD-GRASP), while adapting different motion binning strategies. To explore the potential of respiratory motion knowledge for MR reconstruction, individual absolute body motion, i.e. of the liver, is identified.

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