Abstract #2076
High-resolution functional imaging in the human brain using passband bSSFP at 9.4T
Klaus Scheffler 1,2 and Philipp Ehses 1,2
1
Dept. of Biomedical Magnetic Resonance,
University of Tbingen, Tbingen, Germany,
2
High-Field
MR Center, Max Planck Institute for Biological
Cybernetics, Tbingen, Germany
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.
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