本文构建Eclipse 11.0临床放疗系统与私有云组成的混合云平台环境,实现"私有云+医疗软件"混合云新模式.基于开源OpenStack云计算架构,利用XenServer GPU虚拟化技术,在多核CPU戴尔服务器上建立云基础架构服务,产生了3类可迁移和生命周期可管理的虚拟机:科研教学虚拟机、Eclipse工作站虚拟机和Eclipse计划系统分布式计算虚拟机,并使用高级远程桌面访问工具NoMachine远程访问各种虚拟机.安装有NoMachine和获得远程访问授权的电脑接入私有云局域网都能轻松访问Eclipse软件,能克服空间限制,并且为科研人员和临床工作者提供了科研开发平台,为放射治疗计划设计中调强优化和剂量计算提供了计算资源.Eclipse放疗系统混合云平台,能有效提高软件利用率,解决医疗软件的高成本低利用的状况,优化放射治疗计划流程和提高放射治疗计划设计效率.%In order to implement a new hybrid cloud model of "private cloud + medical software", a hybrid environment composed of treatment planning system workstations and a private cloud infrastructure (Data Science Cloud, DSCloud) for radiotherapy planning in routine job were built. The DSCloud was established on the Dell server of multi-core CPU based on open source OpenStack cloud computing architecture, and the XenServer GPU virtualization technology was used in this progress. In the cloud, three kinds of virtual machine images were created: Dev-vmi, Workstation-vmi and DCF-vmi. All of the functional clusters derived from those images were scalable and their lifecycles were managed by OpenStack REST API. The computer that installed NoMachine and accessed a private cloud LAN with access to a remote access authorization could easily access Eclipse software and overcome the space constraints. Moreover, it provided scientific research and development platform for researchers and clinical workers, and provided computing resources for the optimization and dose calculation in the design of radiotherapy plan. This platform can effectively improve the software utilization rate, solve the high cost and low utilization of medical software, optimize the radiotherapy plan process and improve the design efficiency of radiotherapy plan.
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