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Freigegeben
Poster

Optimisation of Asymmetric Adiabatic Pulses for Single Voxel Metabolite Cycled 1H-MRS in the Human Brain at 9.4 Tesla

MPG-Autoren
/persons/resource/persons192635

Giapitzakis,  Ioannis Angelos
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/persons192743

Shao,  Tingting
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/persons133464

Avdievich,  Nikolai
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/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;

Externe Ressourcen

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

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Zitation

Giapitzakis, I. A., Shao, T., Avdievich, N., Kreis, R., & Henning, A. (2014). Optimisation of Asymmetric Adiabatic Pulses for Single Voxel Metabolite Cycled 1H-MRS in the Human Brain at 9.4 Tesla. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-32E5-4
Zusammenfassung
Asymmetric adiabatic pulses have been used for metabolite cycled 1H-MRS at 3 Tesla and 7 Tesla enabling better spectral resolution and post-processing of the measured data without scan time prolongation. In this abstract, the frequency excitation profile of the adiabatic pulses was extensively studied with regards to time duration, the B1+ field and the frequency sweep range. Optimum values for the characteristics of the inversion pulses were found for implementation in a STEAM sequence at 9.4T. Both phantom and in vivo measurements on a healthy volunteer verified the simulations and showed that metabolite cycled 1H-MRS is feasible at 9.4T.