translate English to French: The mean basal values for hepatic venous and aortic catecholamine concentrations were found to be 0.081 ± 0.007 ng/mL and 0.433 ± 0.080 ng/mL, respectively.
Les valeurs moyennes de base des concentrations de cathécolamines veineuses hépatiques et aortiques étaient respectivement 0.081 ± 0.007 ng/mL et 0.433 ± 0.080 ng/mL.