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Poster

Motion detection and dual retrospective correction for MR spectroscopy in the human spinal cord

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Henning,  A
Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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https://www.ismrm.org/13/tp08.htm
(Abstract)

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Citation

Hock, A., Kollias, S., Boesiger, P., & Henning, A. (2013). Motion detection and dual retrospective correction for MR spectroscopy in the human spinal cord. Poster presented at 21st Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2013), Salt Lake City, UT, USA.


Cite as: https://hdl.handle.net/21.11116/0000-0001-55A6-4
Abstract
Subject motion is one of the major problems for MR spectroscopy since it often leads to inaccurate results. The detection of patient motion by observing exclusively the spectra is sometimes impossible. Therefore, in this investigation, 1D navigator acquisitions interleaved with non-water-suppressed MRS measurements are used for real-time subject-motion detection and correction in the spinal cord. Interleaved navigators allow precise real-time motion detection for MRS without the need of additional scan-time and additional hardware. Therefore, it allows early intervention (e.g. asking the subject to lay still) and in combination with non-water-suppressed MRS for a retrospective motion correction even in very small regions of interest like the spinal cord.