[Studies regarding a new contrast medium for demonstrating the patency of bile ducts (author's transl)].

The contrast medium Endomirabil was tested in 103 patients. It produced few side-effects when 20 ml was injected pro examination over a 5 minute period. The rate of visable heterotopic contrast medium elimination is very low. The optimal time for making an x-ray to demonstrate bile ducts and gall bladder is 60-90 minutes after the injection. As a result, the number of x-ray films pro examination can be reduced. The unusually long filling of the bile ducts makes it possible to use tomography up to 90 minutes after the injection. This should be advantageous for radiological departments with limited capacity for tomography. Parenchymal damages induced by contrast medium could not be reduced from the chemical analyses.