Functional imaging at 14.1T using high-resolution pass band bSSFP
Klaus Scheffler 1 , Philipp Ehses 1 , Yi He 1 , Hellmut Merkle 1 , and Xin Yu 1
MRC department, Max Planck Institute for
Biological Cybernetics, Tbingen, Germany, Tbingen,
Sub-millimeter fMRI at very high fields with EPI is
challenging due to the rapid signal decay and B0-related
distortions. Balanced SSFP offers the possibility of
high-resolution (100 um) acquisitions without spatial
distortions and significantly higher temporal resolution
compared to FLASH. Observed signal changes largely
depend on T2 rather than T2* indicating a higher spatial
selectivity compared to gradient echo-based methods.
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