Copyright information:Taken from "Percutaneous subclavian artery stent-graft placement following failed ultrasound guided subclavian venous access"BMC Medical Imaging 2006;6():3-3.Published online 5 May 2006PMCID:PMC1526717. The Wallgraft has been successfully deployed. The right internal mammary artery and the right vertebral artery are occluded. The right common carotid artery is patent and normal in appearance.