Physiologic noise at 7T: PESTICA for 3T obtains signals for pulse and respiration at ultra-high field

Physiologic noise in BOLD acquisitions is problematic for fMRI and connectivity analyses, and is an increasing problem at higher field strengths. There is one existing software package, PESTICA, that can obtain signals at 3T with the same periodicity as parallel monitored pulse and respiration signals and thus can be used in physiologic corrections. PESTICA uses spatial priors generated at 3T and we test PESTICA at 7T, finding promising results.

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