N Chakfé1, M Ohana2, Y Georg3. 1. Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France. Electronic address: nabil.chakfe@chru-strasbourg.fr. 2. Department of Radiology, University Hospital of Strasbourg, Strasbourg, France. 3. Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France.