Value of 3D Printing for Comprehension of Liver Surgical Anatomy

Surgical residents were assigned to three different groups to evaluate different modes of patients' data. Residents were ask to state the liver segment in which the tumor resided and make a minimal resection proposal, including the tumor, the safety margin (1cm) and the dependent liver tissue. Residents were recommended to proceed in a classic way by resecting the whole liver segment. The time spent by each resident was also recorded in order to assess the quickness of comprehension and information transfer of the three different modes of presentation.