Blood oxygenation level-dependent (BOLD) total and extravascular signal changes and ΔR2* in human visual cortex at 1.5, 3.0 and 7.0 T.

@article{Donahue2011BloodOL,
  title={Blood oxygenation level-dependent (BOLD) total and extravascular signal changes and ΔR2* in human visual cortex at 1.5, 3.0 and 7.0 T.},
  author={Manus J. Donahue and Johannes M. Hoogduin and P C M van Zijl and Peter Jezzard and Peter R. Luijten and Jeroen Hendrikse},
  journal={NMR in biomedicine},
  year={2011},
  volume={24 1},
  pages={
          25-34
        }
}
The characterisation of the extravascular (EV) contribution to the blood oxygenation level-dependent (BOLD) effect is important for understanding the spatial specificity of BOLD contrast and for modelling approaches that aim to extract quantitative metabolic parameters from the BOLD signal. Using bipolar crusher gradients, total (b = 0 s/mm(2) ) and predominantly EV (b = 100 s/mm(2) ) gradient echo BOLD ΔR(2)* and signal changes (ΔS/S) in response to visual stimulation (flashing checkerboard; f… CONTINUE READING
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