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Research on Technology of Visualized Simulation in Treatment Planning

Author: GeZhongYuan
Tutor: ZhouZhengDongï¼›DaiYaoDong
School: Nanjing University of Aeronautics and Astronautics
Course: Nuclear Technology and Applications
Keywords: Radiation treatment planning Surface rendering Experience system Digital image reconstruction Virtual Environment Radiotherapy
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 21
Quote: 0
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Abstract


Currently , radiation therapy has become a very important tumor treatment , during treatment , you need to develop more precise radiation treatment plan to ensure the greatest degree of radiation lesions, while the surrounding tissue is important minimal damage , and ultimately achieve precise radiation treatment. Visualization techniques in radiotherapy treatment planning formulation process is playing an increasingly important role in the field of radiation therapy has become a hot research topic . Therefore, the visualization technology research, not only has important academic significance , but also for the development of radiation therapy has an important role in promoting. In this paper, radiation therapy plan visualization techniques were compared with in-depth research, including medical image visualization, digital image reconstruction and virtual radiation environment and the use of computer implements these visualization techniques . Firstly, medical image visualization algorithm for a detailed discussion of the main study Marching Cubes (MC) and Ray-casting (RC) These two methods are given targeted ways to improve it , and according to these two methods to achieve the surface rendering and volume rendering . Since the sequence dimensional reconstruction of three-dimensional shape contour lines in the radiation treatment planning process has important applications , paper uses an interactive approach to fault -dimensional contour extraction , using Delaunay triangulation method contour surface reconstruction . Digital image reconstruction is radiation treatment planning using a key visualization techniques , according to the physical principles of X-ray imaging , the ray-tracing technology used digital image reconstruction , and the use of image enhancement technology to improve image quality , in addition to restricting the speed and digital image reconstruction analysis of the quality bottleneck . In order to ensure the feasibility of radiotherapy , we use the OpenGL graphics library for virtual radiotherapy simulation environment to study a real-time collision detection method radiotherapy equipment , experiments show that this method can effectively and quickly detect radiation treatment planning for potential collision threat will help doctors develop a reasonable and efficient radiotherapy treatment planning . In addition, based on the theory of algorithms , based on VC 6.0, this paper the design and development of a medical image processing software system for the future development of radiotherapy treatment planning system has laid a good foundation.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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