放射治疗管理信息系统(RTMS)基于放射治疗领域的数据传输通用标准(Radiothearapy in DICOM,DICOM-RT)与医疗信息交换标准HL7协议构建,对各种异源设备上的放疗计划设计和执行结果等信息进行连接和数据采集,是继CT定位设备、TPS和治疗加...放射治疗管理信息系统(RTMS)基于放射治疗领域的数据传输通用标准(Radiothearapy in DICOM,DICOM-RT)与医疗信息交换标准HL7协议构建,对各种异源设备上的放疗计划设计和执行结果等信息进行连接和数据采集,是继CT定位设备、TPS和治疗加速器等软硬件升级之后,现代放射治疗中心必需的基础建设项目之一。我院与深圳医诺公司合作,借助他们强大的实力开发队伍,创建了与医院HIS密切并联的RTMS。它将放疗科目前所涉及的各种设备进行统一管理,将肿瘤放疗所涉及的全部业务囊括其中,实现了数据共享、自动分析、优化组合,同时引入先进现代化的质量管理规程,从而提高放疗科室的工作效率,加强质量控制和提高质保水平,增强放疗科收容治疗肿瘤病人的能力和治疗水平。本文就系统作用、技术实现、设计思路、技术实现、各子系统构建进行了全面介绍。展开更多
The purpose of this study was to investigate the prediction of mechanical error using DICOM-RT plan parameters for volumetric modulated arc therapy (VMAT). We created plans for gantry rotation arcs of 360° and 18...The purpose of this study was to investigate the prediction of mechanical error using DICOM-RT plan parameters for volumetric modulated arc therapy (VMAT). We created plans for gantry rotation arcs of 360° and 180° (full-arc and half-arc VMAT) for six maxillary sinus cancer cases using a Monaco treatment planning system, and delivered the doses with a linear accelerator. We calculated DICOM-RT plan parameters, including gantry, multileaf collimator (MLC) positions and Monitor Units (MU). We compared plans with regard to gantry angle per MU (degrees/MU) and MLC travel per MU (mm/MU) for each segment. Calculated gantry angle/MLC position speeds and errors were evaluated by comparison with the log file. On average, the half-arc VMAT plan resulted in 47% and 35% fewer degrees/MU and mm/MU than the full-arc VMAT plan, respectively. The root mean square (r.m.s.) gantry and MLC speeds showed a linear relationship with calculated degrees/MU and mm/MU, with coefficients of determination (R2) of 0.86 and 0.72, respectively. The r.m.s. gantry angle and MLC position errors showed a linear relationship with calculated degrees/MU and mm/MU with R2 of 0.63 and 0.76, respectively. Deviations from plan parameters were related to mechanical error for VMAT, and provided quantitative information without the need for VMAT delivery. These parameters can be used in the selection of treatment planning.展开更多
利用ITK工具完成了医学数字成像及通信(Digital Imaging and Communications in Medicine,DICOM)标准中的RT结构集(Radiotherapy Structure Set)对象的创建,实现了从带有病灶的DICOM图像(以CT图像为例)到RT结构集文件创建整个过程,建立...利用ITK工具完成了医学数字成像及通信(Digital Imaging and Communications in Medicine,DICOM)标准中的RT结构集(Radiotherapy Structure Set)对象的创建,实现了从带有病灶的DICOM图像(以CT图像为例)到RT结构集文件创建整个过程,建立了整个流程模型。DICOM标准中的RT结构集对象主要用于传送病人结构和相关数据,在结构集信息实体中,其主要包含结构集模块、医生感兴趣区域轮廓模块(ROI Contour)和感兴趣区域观察模块(ROI Observations)等。可以用ITK工具实现自动勾画医生感兴趣区域的操作,从而抽取出轮廓数据(Contour data),创建RT结构集文件,为进一步实现整个治疗计划系统开发打下坚实基础。展开更多
文摘放射治疗管理信息系统(RTMS)基于放射治疗领域的数据传输通用标准(Radiothearapy in DICOM,DICOM-RT)与医疗信息交换标准HL7协议构建,对各种异源设备上的放疗计划设计和执行结果等信息进行连接和数据采集,是继CT定位设备、TPS和治疗加速器等软硬件升级之后,现代放射治疗中心必需的基础建设项目之一。我院与深圳医诺公司合作,借助他们强大的实力开发队伍,创建了与医院HIS密切并联的RTMS。它将放疗科目前所涉及的各种设备进行统一管理,将肿瘤放疗所涉及的全部业务囊括其中,实现了数据共享、自动分析、优化组合,同时引入先进现代化的质量管理规程,从而提高放疗科室的工作效率,加强质量控制和提高质保水平,增强放疗科收容治疗肿瘤病人的能力和治疗水平。本文就系统作用、技术实现、设计思路、技术实现、各子系统构建进行了全面介绍。
文摘The purpose of this study was to investigate the prediction of mechanical error using DICOM-RT plan parameters for volumetric modulated arc therapy (VMAT). We created plans for gantry rotation arcs of 360° and 180° (full-arc and half-arc VMAT) for six maxillary sinus cancer cases using a Monaco treatment planning system, and delivered the doses with a linear accelerator. We calculated DICOM-RT plan parameters, including gantry, multileaf collimator (MLC) positions and Monitor Units (MU). We compared plans with regard to gantry angle per MU (degrees/MU) and MLC travel per MU (mm/MU) for each segment. Calculated gantry angle/MLC position speeds and errors were evaluated by comparison with the log file. On average, the half-arc VMAT plan resulted in 47% and 35% fewer degrees/MU and mm/MU than the full-arc VMAT plan, respectively. The root mean square (r.m.s.) gantry and MLC speeds showed a linear relationship with calculated degrees/MU and mm/MU, with coefficients of determination (R2) of 0.86 and 0.72, respectively. The r.m.s. gantry angle and MLC position errors showed a linear relationship with calculated degrees/MU and mm/MU with R2 of 0.63 and 0.76, respectively. Deviations from plan parameters were related to mechanical error for VMAT, and provided quantitative information without the need for VMAT delivery. These parameters can be used in the selection of treatment planning.
