Comparison of physiological noise at 1.5 T, 3 T and 7 T and optimization of fMRI acquisition parameters.
Christina TriantafyllouRichard D. HogeGunnar KruegerChristopher J. WigginsAndreas PotthastGraham C. WigginsLawrence L. WaldPublished in: NeuroImage (2005)
Keyphrases
- fine tuning
- optimization algorithm
- optimization problems
- highly non linear
- noise variance
- noise model
- parameter values
- noisy data
- global optimization
- optimization method
- missing data
- parameter estimation
- data analysis
- parameter space
- signal to noise ratio
- correlation coefficient
- noise level
- constrained optimization
- particle swarm optimization
- parameter optimization
- image statistics
- random noise
- maximum likelihood
- optimization criteria