An experimental microangiographic study on renal embolization with various embolic materials

Author: Heung Sik KANG ; Kyung Mo YEON ; Jung Gi IM ; Jae Hyung PARK ; Man Chung HAN ; Chu Wan KIM
Publication Type:Original Article
MeSH: Arteries; Dilatation; Ethanol; Gelatin Sponge, Absorbable; Rabbits
From:Journal of the Korean Radiological Society 1984;20(4):715-725
CountryRepublic of Korea
Language:Korean
Abstract: Renal arterial embolization was induced experimentally in rabbits using autologous blood clot, Gelfoam, bariumsulfate, Ivalon(Polyvinyl alcohol)and ethanol. Microvascular changes were studied angiographically,microangiographically and histopathologically. The results were as follows: 1. The microangiographic findings ofrenal artery embolization were arterial occlusion, irregular arrangement, spiralling, dilatation, narrowing andcollateral vessel formation. 2. Recanalization of embolized vessels were noted after injection of autologous bloodclot and Gelforam only. 3. Collateral vessel formations were demonstrated in entire cases of renal arterialembolization (36/37). 4. After injection of Ivalon, recanalization of embolized vessel was not demonstrated butcollateral vessel formation were demonstrated microangiographically in all cases. 5 After injection of ethanol,collateral vessels were poorly developed microangiographically than other groups. 6. Embolic effect of ethanol wasnoted in central vessel but as well as in peripheral vessel. It was considered that ethanol is the most effectiveagent for permanent renal arterial occlusion.