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Age and hemodynamic physiology: There was no significant interaction between age and venous hyperintense signal (VHS) presence (VHS+) or absence (VHS−) on the association between cerebral blood flow (CBF) and age (a) and There was a significant interaction between age and VHS on maximum oxygen extraction fraction (OEFmax), with older age associated with higher OEFmax in VHS− participants and lower OEFmax in VHS+ participants (b).
