%0 Thesis %A Buschbeck, Richard Peter Martin %T Development of a novel spherical navigator-based motion measurement technique in magnetic resonance imaging %I RWTH Aachen University %V Dissertation %C Aachen %M RWTH-2020-00002 %P 1 Online-Ressource (vii, 151 Seiten) : Illustrationen, Diagramme %D 2019 %Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University 2020 %Z Dissertation, RWTH Aachen University, 2019 %X Patient motion is a frequent problem in magnetic resonance imaging (MRI) causing significant degradations of the image quality. While numerous motion correction techniques are available, most of them require time-resolved information on the movements occurring during the MRI scan. One way to measure 3D rigid-body patient motion are so-called spherical navigator (SNAV) scans. SNAVs have an excellent clinical feasibility, but have not gained widespread adoption so far, because available techniques suffer from several technical and practical limitations. This PhD thesis investigates a novel SNAV technique aiming to overcome several of these challenges. The proposed SNAV concept uses a spherical Lissajous navigator (LNAV) at a k-space radius of 0.1/cm. This value is >70 %F PUB:(DE-HGF)11 %9 Dissertation / PhD Thesis %R 10.18154/RWTH-2020-00002 %U https://publications.rwth-aachen.de/record/775417