Comparison of the Endothelialization of Small Intestinal Submucosa, Dacron, and Expanded Polytetrafluoroethylene Suspended in the Thoracoabdominal Aorta in Sheep

SIS showed progressive remodeling with moderate and regressive neointimal formation and moderate stable endothelialization. Further study of its durability and incorporation into the aortic wall needs to be performed to evaluate its suitability as a cover for aortic endografts