[Studies on the excretion of contrast media passing through the biliary system (author's transl)].

Opacification of the bile ducts was found to be optimal 30-60 minutes after drip infusion for 20-60 minutes. The radiographs were taken at times between 15 and 120 minutes after the infusion. Opacification was assessed subjectively by the radiologists and objectively by transmission densitometry. The concentration of the contrast material in the blood shows a multi-compartment system with a rapid component of 30 minutes and a slow component of 2-4 hours. The normal; normalization can be expected after about 3 months.