Abstract #1507
Constrained Source Space Imaging: Rapid Point Measurement of fMRI Paramaters
Karl Landheer 1 and Simon Graham 1
1
Medical Biophysics, University of Toronto,
Toronto, Ontario, Canada
A novel technique to rapidly measure fMRI parameters has
been improved upon. Our technique uses a modified PRESS
sequence to excite three arbitrarily positioned voxels.
SENSE is then used to reconstruct each of the four
voxels time-dependent signal. A minimum TR of 73 ms was
achieved, and showed to provide good agreeance between a
single voxel measurement. This technique provides access
to T2, T2* and centre frequency, all which can be used
to monitor functional activity through the BOLD
response. This technique will be used to measure very
fast brain activity for mental chronometry in the
future.
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