Abstract #0870
Mapping Activation in the Human Brainstem at 7 T with High Spatial and Temporal Resolution Using RASER and SSBA
Ute Goerke 1 , M. Elias Kersten 2 , Siraj Bachani 2 , David A. Bereiter 2 , and Donald R. Nixdorf 2
1
CMRR/Radiology, University of Minnesota,
Minneapolis, Minnesota, United States,
2
School
of Dentistry, University of Minnesota, Minnesota, United
States
In previous studies, it has been demonstrated that the
emerging ultrafast imaging sequence RASER is beneficial
for fMRI at ultrahigh magnetic field strength. In this
paper, we show the potential of RASER for mapping neural
correlates of pain processing in the human brain stem
with high spatial and temporal resolution. In
particular, 3D-RASER captures the BOLD response with
higher temporal resolution compared to multi-slice
technique. Activation maps were generated using the
post-processing technique, SSBA. Robust activation was
found in trigeminal nucleus (V2), the chief sensory
nucleus and the periaqueductal grey induced by a
moderately painful prick stimulus of the gingiva.
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