The Development of Medical Image Software – Fundamental Interface and Three-dimensional Solid Modeling Reconstruction

• Main Authors: Tai-Hong Kuo, 郭泰宏
• Other Authors: Jing-Jing Fang
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/93134433261972020216

碩士 === 國立成功大學 === 機械工程學系碩博士班 === 90 === In the last decade, the big progress of computer techniques combine with medical CT (Computed Tomography) and MRI (Magnetic Resonance Imaging) equipment improves welfares of human life. The ability of computer graphics technology has been greatly enhanced. Therefore, the three-dimensional physical models created by laser sinter machine are widely used. The aim of this research is to develop a computer-assisted medical image software. In order to assist medical doctors to preview sectional images from any angles, we reconstruct virtual 3D models on display that based on the images from patient’s tomography data. This fundamental research involves the techniques of medical radiation and nuclear system and mechanical laser sinter system. The STL (Stereo-Lithography) file format has been generated from our research. The produced models from RP (Rapid Prototyping) machine are used to assist surgeon on surgical planning, pre-operational simulation, and shaped implant. From the outcomes of our work, we can efficiently reduce the complex process in surgical operation and improve the probability of success in surgery. Meanwhile, we also investigate the errors produced by reconstruction process. A refined method has been developed to reduce such errors. Regard to the outcomes of the experiment, we suggest that the scan distance of CT should close to the pixel size of CT image for the purpose of improving accuracy. Furthermore, we also develop a simple indemnifying method to amend the problems caused by large scan step. Virtual pixels are interpolated in order to produce smooth modeling.