fMRI at 1.5, 3 and 7 T: Characterising BOLD signal changes

@article{Zwaag2009fMRIA1,
  title={fMRI at 1.5, 3 and 7 T: Characterising BOLD signal changes},
  author={W. Zwaag and S. Francis and K. Head and A. Peters and P. Gowland and P. Morris and R. Bowtell},
  journal={NeuroImage},
  year={2009},
  volume={47},
  pages={1425-1434}
}
Blood oxygenation level dependent (BOLD) signal changes occurring during execution of a simple motor task were measured at field strengths of 1.5, 3 and 7 T using multi-slice, single-shot, gradient echo EPI at a resolution of 1x1x3 mm(3), to quantify the benefits offered by ultra-high magnetic field for functional MRI. Using four different echo times at each field strength allowed quantification of the relaxation rate, R(2)* and the change in relaxation rate on activation, DeltaR(2)*. This work… Expand
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