A comparative study of the degree of arterial recanalization in kidneys of dogs following transcatheter embolization with eight different materials.

41 dogs were subjected to percutaneous arterial embolization of branches or the main trunk of the renal artery with or without prior injury to the kidney. 8 materials were used: homologous blood clot, muscle, fat, fascia, barium sulfate, plain catgut, gelfoam and polyvinyl alcohol (Ivalon). From the angiographic investigation over a relatively long period, it was observed that complete recanalization of the embolized vessels occurred only with blood clot and gelfoam; partial recanalization, with muscle fat and plain catgut; and no recanalization at all with fat, barium sulfate and Ivalon.