Optimad Engineering is glad to share the success of the collaboration with Guerbet(France) and Vascular Simulations(U.S.). The aim of the cooperation was the design and the realization of a hepatic blood vessels network model. The model has been co-designed by Optimad and Guerbet and manufactured by Vascular Simulations. This in vitro model will allow Guerbet to easily investigate, using several image analysis techniques, the behavior of a multi-phase flow in a realistic vascular network. Hereunder, we show an image of the mathematical model and of the real model fastened to a plate.