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Comparison of different methods for combination of multichannel spectroscopy data

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

/persons/resource/persons84402

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

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Giapitzakis, I., & Henning, A. (2015). Comparison of different methods for combination of multichannel spectroscopy data. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-45D9-B
Abstract
Single voxel spectroscopy benefits from the use of multi-channel coils. Several methods have been proposed in order to increase the signal to noise ratio of the combined spectrum. In particular, three methods (Brown’s method, singular value decomposition method and generalized least square) were studied to access their performance and robustness. For this purpose, simulated data were created mimicking spectrum under different decoupling conditions, in vivo data were also used. The results demonstrated that the methods produces combined spectra with similar values of SNR. However, their robustness varies in a high degree.