Estimation of respiration-induced noise fluctuations from undersampled multislice fMRI data.

@article{Frank2001EstimationOR,
  title={Estimation of respiration-induced noise fluctuations from undersampled multislice fMRI data.},
  author={Lawrence R. Frank and Richard B. Buxton and Eric C. Wong},
  journal={Magnetic resonance in medicine},
  year={2001},
  volume={45 4},
  pages={635-44}
}
Functional MRI time series data are known to be contaminated by highly structured noise due to physiological fluctuations. Significant components of this noise are at frequencies greater than those critically sampled in standard multislice imaging protocols and are therefore aliased into the activation spectrum, compromising the estimation of functional activations and the determination of their significance. However, in this work it is demonstrated that unaliased noise information is available… CONTINUE READING