Approach on clinical application of visual artificial simulation splenectomy / 解放军医学杂志

ABSTRACT

Objective To study the three-dimensional (3D) reconstruction of pancreas based on the data of 64-row helical CT scanning and the effect of the dynamic simulation surgery of spleen.Methods The original scan data of spleen 64-slice helical CT were collected and the image program segmentation and automatic extraction were done with images of CT series by adaptive region growing algorithm.Then the image processing software was used to proceed with the 3D reorganization with the images which are segmented.Import reconstructed objectives to FreeForm Modeling System in the form of STL format were embellished and smoothed.GHOST SDK software of FreeForm Modeling System was utilized to develop various instruments needed by simulated surgeries.And the visualization of simulated surgery by PHANTOM software was studied before the splenectomy.Results By the adaptive region growing algorithm, the spleen image procedure could be calculated soon and efficiently, and the satisfactory spleen segmentation data were obtained.The clear picture structure of 3D- reorganization was a exact reproduction of spleen and the structures of vital organs and passages around;The simulated splenectomy was high simulated, vivid, exact and the operator could feel like a real surgery.Conclusions The research of 3D reorganization and visual artificial simulation surgery to spleen with the medical image process software and the FreeForm Modeling System can make surgeons know the 3D anatomical structure around spleen clearly before the surgery.And it is of great help to reduce the risk of surgery, decrease operative complications, and improve the effect of surgery.