RADIATION FIELD MODELING AND COMPUTERIZED TREATMENT PLANNING

医学成像和定位技术的巨大进步 最近给物理和计算机带来了挑战 扩展计算机化治疗模拟的技术(规划和 优化)能力。计算分布的能力 光子束和电子束产生的吸收剂量最大 一般特征是放射治疗的基础。我们的光子和 以前已经描述过电子束辐射场模型。一个 这些模型的重要优点是它们需要的相对较少 实验数据，因此可以非常容易地实现。 在Macintosh上扩展我们的束流治疗计划程序Mac TPS 设备仍在继续。该系统正在同时进行评估 现有的基于VAX-750的“常规”多切片计划系统。3-D 分割成像现在得到了广泛的应用，并且正在被 在新的需求和建议的指导下，不断扩大 医务人员。人们对社区的兴趣与日俱增。广泛的 提供了包含多个级别的用户指南的手册，并不断更新- 到目前为止。 用DCRT探索连接潜力的实验项目 我们的Mac II系统以海量并行处理系统来缓解 这方面正在慢慢取得进展。该项目面临着以下重大问题 海量数据的实时双向传输。这个 问题还会持续一段时间。充足的人员配备也是一个主要的 有问题。

The vast improvement of the medical imaging and localization technology over the recent past has brought a challenge to physics and computer technology to extend the computerized treatment simulation (planning and optimization) capabilities. The capability to calculate the distribution of absorbed dose produced by photon beams and electron beams to the most general characteristics is fundamental to radiotherapy. Our photon and electron beam radiation field models have been described before. An important advantage of these models is that they require relatively few experimental data and thus can be implemented very easily. Expansion of our beam treatment planning program Mac TPS on Macintosh equipment is continuing. The system is being evaluated in parallel to the existing Vax-750 based system for "conventional" multi-slice planning. 3-D segmented imaging is being applied extensively now, and is being continually expanded, guided by new demands and suggestions from the medical staff. The is a growing interest in the community. An extensive manual with several levels of user guidance is available and is kept up- to-date. The experimental project with DCRT to explore the potential of connecting our Mac II system to a massive parallel processing system to alleviate this aspect is slowly progressing. The project faces major problems with the real-time 2-way transmission of very large amounts of data. The problems will be present for a while. Adequate staffing is also a major problem.