Abstract #2039
T2 weighted high-resolution fMRI in human visual cortex at 9.4 T using 3D-GRASE
Valentin G. Kemper 1 , Federico De Martino 1,2 , Desmond H. Y. Tse 3,4 , Benedikt A. Poser 1 , Essa Yacoub 2 , and Rainer Goebel 1
1
Cognitive Neuroscience FPN, Maastricht
University, Maastricht, Limburg, Netherlands,
2
Center
for Magnetic Resonance Research, CMRR, Radiology,
University of Minnesota, Minneapolis, MN, United States,
3
Neuropsychology
and Psychopharmacology, FPN, Maastricht University,
Maastricht, Limburg, Netherlands,
4
Radiology,
University Medical Centre, Maastricht University,
Limburg, Netherlands
A zoomed, inner-volume 3D-GRASE sequence was used to
acquire T2 weighted 0.8 mm and 0.6 mm isotropic
resolution fMRI at 9.4 T in human early visual areas.
Robust activation patterns could be observed at both
resolutions. Results are compared to 7 T data of the
same volunteer with the same functional paradigm and
similar technical set-up. At the same resolution,
temporal SNR is significantly higher at 9.4 T than at 7
T, while T2 weighted fMRI signal changes induced by a
visual task were found to be similar.
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