Artificial Correlations Induced by SENSE and GRAPPA Corrupt fcMRI Conclusions

Keywords

accelerated accounted acquisition added aims aliased aliasing aligned arise around array artifacts artificial assumes attention attractive audience avoid background band bandpass biological biophysics brain calibration circle coefficient coefficients coils college combined commonly computer concurrent connectivity contrast convolved correlation correlations corrupt covariance decay decreasing default density depending either employed encoding equation errors essential expected experimentally fact fields filter filtering fitting frequencies frequency full fully functional green hamming human hypothesis imperative implications increasing increments induce induced inherent interpolation invasive involve kernel little magnitude maintain mathematics medical misleading missing mode model models moreover negligible network noise notable notably observing omitted origin outlined outside paid parallel phantom polynomial popularity previously process processes processing pulse random receiver reconstruct reconstructed reconstruction reconstructions reduced reducing reduction removal reside resting revolve sampled science seed sense sensitivities series short sign simulate simulated sources space spatial spin squared statistical statistics structure studies subject target threshold type unfolding upper variety white window