Romaric Loffroy1. 1. Department of Vascular and Interventional Radiology, François-Mitterrand Teaching Hospital, LE2I UMR CNRS 6306, Arts et Métiers, University of Bourgogne/Franche-Comté, 14 Rue Gaffarel, BP 77908, 21079, Dijon Cedex, France. romaric.loffroy@chu-dijon.fr.