SURGERY SIMULATION APPARATUS AND SURGERY SIMULATION PROGRAM

摘要

To execute cutting simulation when a tip of a treatment instrument can reach an operable voxel.SOLUTION: A surgery simulation apparatus includes: an instrument parameter acquisition unit 40; a voxel data extraction unit 7 for generating voxel data and voxel label data on the basis of a plurality of pieces of tomographic image data; an operable area calculation unit 27 for calculating an area including an operable voxel that a tip of a treatment instrument interpolated in a retractor can reach on the basis of the voxel data and the instrument parameter; a cut voxel label setting unit 18 for changing the voxel label data with an operable voxel whose distance from the tip of the treatment instrument is a predetermined distance or less as a cut voxel; and a volume rendering calculation unit 13 for specifying an object voxel included in a plurality of cross sections perpendicular to a retractor axis and located in front of the retractor, projecting the voxel data in the object voxel in a line-of-sight direction, and generating a virtual endoscopic image.SELECTED DRAWING: Figure 2