High-resolution functional imaging in the human brain using passband bSSFP at 
9.4T

Scheffler, K; Ehses, P

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High-resolution functional imaging in the human brain using passband bSSFP at 9.4T

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Scheffler, K
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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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;

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http://www.ismrm.org/15/program_files/WedTP03.htm
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Citation

Scheffler, K., & Ehses, P. (2015). High-resolution functional imaging in the human brain using passband bSSFP at 9.4T. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-45E1-8

Abstract

Passband bSSFP at 9.4T provides highly reproducible and stable functional activation maps. Results were compared to GE-EPI and SE-EPI. Based on the very short TE of 2.1 ms for bSSFP, T2*-related signal changes are expected to be very small, which is supported by the similarity of bSSFP and SE-EPI activation maps. As bSSFP is distortion-free, direct overlay to anatomical images is possible. Furthermore, the spatial resolution is not smoothed along the PE-direction due to T2*-related blurring as in EPI-based methods.