[Problem to be solved] To allow making a three-dimensional model in which a plurality of structural elements are distinguishable from each other in a simple and inexpensive manner.[Solution] A liver region extraction unit (14) and a structural element extraction unit (16) extracts the liver region and structural elements, such as the hepatic artery and the hepatic vein, from a three-dimensional image (VO), and a surface data generation unit (18) generates surface data of the liver region and surface data of the structural elements. Apattern adding unit (20) adds a textured pattern to at least one of the surfaces of the liver region and the structural elements, and a data generation unit (22) generate three-dimensional model data by combining the surface data of the liver region and the surface data of the structural elements after the addition of the textured pattern. A three-dimensional model making device (30) makes a three-dimensional model of the liver based on the three-dimensional model data.
