End-tidal CO2 changes during short breath-hold maneuvers: Variability, paradigm effects, and spirometric correlates
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Breath-hold functional MRI (bh-fMRI) is a widely used method for mapping cerebrovascular reactivity (CVR). Normalization of BOLD signal changes to end-tidal CO₂ changes (ΔpetCO₂) is suggested to improve between-subject comparability. The aim was to characte... ...
