心脏介入术虚拟训练研究

发布时间：2018-04-03 16:33

本文选题：心脏介入术　切入点：Open　出处：《西安工业大学》2017年硕士论文

【摘要】：随着时代的发展和老龄化社会进程的加快,冠心病已然成为严重危及人类生命的疾病之一。当前,由于介入治疗手术具有微创、操作简单、见效快等特点已被普遍的应用于冠心病的治疗,并且成为最及时、有效的方法之一。但是,介入治疗手术对操作精度的要求和风险度都很高,这就要求医生必须具备丰富的手术经验和技巧。传统的介入手术培训方法存在着训练周期长、资源稀缺、训练效果差等诸多局限和不足,虚拟手术的出现为解决以上问题开辟了一条新的道路。本课题基于临床心脏介入手术和虚拟现实技术原理,提出了一种应用于心脏介入手术的虚拟训练系统。本论文以虚拟场景的构建以及相关功能模块的开发设计为研究重点,成功实现了血管建模、介入导丝建模等一些重要环节,为心脏介入术虚拟训练系统的最终实现奠定了良好的基础。本文首先根据冠脉血管的形状、外观特点以及参数信息,构建了右冠脉血管三维模型,并通过3D打印技术制作出血管的实体模型。接着以Visual C+++为开发工具,选用Open CASCADE作为造型内核,创建了 Open CASCADE单文档应用程序框架,并且基于MFC框架完成了程序框架界面的总体设计,实现了虚拟场景的构建;随后,在分析了 STL文件的数据结构的基础上,通过调用Open CASCADE提供的类,实现了文件导入模块的开发;通过编辑参数设置对话框并调用Open CASCASE提供的类,完成了虚拟场景中模型的位姿变换模块的开发。针对介入导丝,将其离散成许多节点并分为直线和弯曲两个部分,通过调用Open CASCADE提供的建模类,构建出导丝模型,并使导丝模型在虚拟场景中显示。最后,通过VC++编程实现了各个部分的集成。
[Abstract]:With the development of the times and the acceleration of the aging society, coronary heart disease has become one of the serious life-threatening diseases.At present, interventional therapy has been widely used in the treatment of coronary heart disease because of its characteristics of minimally invasive, simple operation, quick effect and so on, and has become one of the most timely and effective methods.However, the operation precision and risk of interventional therapy are very high, which requires doctors to have rich experience and skills.The traditional training methods of interventional surgery have many limitations such as long training cycle, scarce resources and poor training effect. The emergence of virtual surgery has opened a new way to solve the above problems.Based on the principles of clinical interventional cardiac surgery and virtual reality, a virtual training system for cardiac interventional surgery is proposed.This paper focuses on the construction of virtual scene and the development and design of related functional modules, and successfully realizes some important links, such as vascular modeling, interventional wire modeling, and so on.It lays a good foundation for the final realization of the virtual training system of cardiac interventional surgery.In this paper, according to the shape, appearance and parameter information of coronary artery, the 3D model of right coronary artery is constructed, and the solid model of vessel is made by 3D printing technology.Then, with Visual C as the development tool and Open CASCADE as the modeling kernel, the Open CASCADE single document application framework is created, and the overall design of the program framework interface is completed based on the MFC framework, which realizes the construction of the virtual scene.On the basis of analyzing the data structure of STL file, the development of file import module is realized by calling the class provided by Open CASCADE, and the class provided by Open CASCASE is called by editing the parameter setting dialog box and calling the class provided by Open CASCASE.The development of the model's position and pose transformation module in the virtual scene is completed.The interventional guide wire is discretized into many nodes and divided into straight line and curved part. By calling the modeling class provided by Open CASCADE, the guide wire model is constructed, and the guide wire model is displayed in the virtual scene.Finally, the integration of each part is realized by VC programming.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R541.4;TP391.9

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