The physiochemical and healing characteristics of the Plasma-TFE synthetic artery (Atrium Medical Corp. Amherst, NH) were studied and compared to u similarly constructed polyethylene terephthalate graft without Plasma-TFE treatment. Plasma-TFE treatment is a method of coating a graft's surface with tetrafluoroethylene and was found to alter significantly the surface chemistry and energy of the graft. However. Result, of this study suggested that Plasma-TFE treatment had on effect on tissue penetration and neointima formation after implantation into the abdominal aorta of the dog for 8 weeks.