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High-Resolution Free Induction Decay Proton MRSI in the Human Brain at 9.4 T

MPS-Authors
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Chadzynski,  G
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84402

Henning,  Anke
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;

/persons/resource/persons83898

Ehses,  P
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83973

Hoffmann,  Jens
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84213

Shajan,  Gunamony
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

Scheffler,  Klaus
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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http://www.ismrm.org/14/program_files/TP14.htm
(Abstract)

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Citation

Chadzynski, G., Henning, A., Ehses, P., Hoffmann, J., Shajan, G., & Scheffler, K. (2014). High-Resolution Free Induction Decay Proton MRSI in the Human Brain at 9.4 T. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.


Cite as: https://hdl.handle.net/21.11116/0000-0001-32E1-8
Abstract
The FID-MRSI technique is a promising tool to be used for spectroscopic imaging at ultra-high magnetic field as it enables short TE and avoids in-plane chemical shift displacement. However, due to the acquisition delay, the first points of the acquired FID signals are missing, giving rise to phase problems which may hamper quantitative analysis. Our aim was to examine the feasibility of high-resolution FID-MRSI of the healthy human brain at the field strength of 9.4 T. The missing FID points were reconstructed with an autoregressive model so that the phase problems present in the acquired spectra could be minimized.