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

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.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0001-32E5-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0001-371B-4
Genre: Poster

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http://www.ismrm.org/14/program_files/TP14.htm (Abstract)
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 Creators:
Giapitzakis, Ioannis Angelos1, 2, Author           
Shao, Tingting1, 2, Author           
Avdievich, Nikolai1, 2, Author           
Kreis, R, Author
Henning, Anke1, 2, Author           
Affiliations:
1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: 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.

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 Dates: 2014-05
 Publication Status: Issued
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 Identifiers: BibTex Citekey: GiapitzakisSAKH2014
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Place of Event: Milano, Italy
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 2895 Start / End Page: - Identifier: -