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Abstract #0855

Real-Time Motion and Shim Correction by Volumetric EPI Navigators Improves 3D LASER Localized Spiral MRSI of the Brain at 3T

Wolfgang Bogner1, 2, Aaron T. Hess3, Borjan Gagoski4, Matthew Dylan Tisdall1, Andr J. W. van der Kouwe1, Siegfried Trattnig2, Ovidiu C. Andronesi1

1Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States; 2MR Center of Excellence, Department of Radiology, Medical University Vienna, Vienna, Austria; 3Department of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom; 4Fetal-Neonatal Neuroimaging & Developmental Science Center, Childrens Hospital Boston, Harvard Medical School, Boston, MA, United States

High-field MR spectroscopic imaging (MRSI) is limited by localization artifacts (i.e., imperfect selection profiles, chemical shift errors, B1 inhomogeneities), motion-related artifacts (i.e., position changes, phase artifacts, B0 changes, lipid artifacts), and long measurement times (i.e., causing reduced spatial coverage and low spatial resolution).