Surgical Planning Using Brain CT Images

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A new system for simulation of surgical processes has been developed.Our system consists of three subsystems. They have the following characteristics, respectively.(1) Image generation systemA 3-D image is generated based on the voxel expression method and the gradient shading method. In this system, we developed a fast algorithm to generate a 3-D image and studied some filtering operation to reduce small fluctuations,(2)Surgical planning systemBased on the actual way of surgical operations by plastic surgeons, we developed a system that enables a doctor to simulate bone cutting and movement freely and to obtain the 3-D image of the result. We have already tried this system for actual surgeries and doctors evaluated effectivity of this system.(3)Post-operative face prediction systemPost-operative face image is roughly predicted by using the cylindrical coordinate expression and the surface smoothing technique.