COMPUTER-ASSISTED 3-D RADIATION TREATMENT PLANNING

这个持续项目的目的是开发和临床 外照射治疗通用系统实现 规划 它将使现有的治疗方法得到最佳利用 设施 该系统是基于广义三维剂量场模型 它包括光子和电子以及中子束。 计算机 该计划及其大部分临床实施已经完成， 可从本地Clinac 4、Clinac 8和 Clinac 20直线加速器。 还有更多的工作要做， 2光子9电子微波加速器的实现 能源和一些不寻常的技术选择。 的现有能力 包括大多数辐照技术交互式模拟，包括 大多数光束修正装置的效果。 横向患者轮廓是 覆盖在相应的CT扫描上，以便可以将剂量分布与 到解剖学。 四台新的辐射机中有三台已经 用于常规治疗计划。 工作仍在继续， 在VAX-11/750系统上优化我们的大多数计算机程序， 旧PDP 11/70系统。 这项工作是，像以前一样，复杂的 临床治疗需要持续可靠的常规支持。 极大的关注是继续支付的通用性，完整性和 文件的质量，以及交流。 泛化具有 通过引入病人代表， 密度网格

The purpose of this continuing project is the development and clinical implementation of a generalized system for external beam treatment planning. It will enable the optimum utilization of existing treatment facilities. The system is based on a generalized 3-D dose field model which covers photon and electron as well as neutron beams. The computer program and most of its clinical implementation was completed for the photon and electron fields available form the local Clinac 4, Clinac 8 and Clinac 20 linear accelerators. More work is to be done on the implementation of the Microtron with its 2 photon energies and 9 electron enegies and some unusual technical options. The current capabilities include interactive simulation of most irradiation techniques, including the effect of most beam modifying devices. Transverse patient contours are overlaid on corresponding CT scans so that dose distribution can be related to the anatomy. Three of the four new radiation machines have been implemented for routine treatment planning. Work is continuing on optimization of most of our computer programs on the VAX-11/750 system, from the old PDP 11/70 system. This work is, as before, complicated by the need for continuing reliable routine support for the clinical treatment. Great attention is continuing to be paid versatility, completeness and quality of documentation, as well as exchangeability. Generalization has progressed considerably by the introduction of patient representation by a density grid.