Zimmermann J S, Kovács G, Jensen M, Kimmig B
Abteilung Radioonkologie, der Christian-Albrechts-Universität Kiel.
Strahlenther Onkol. 1996 Feb;172(2):103-5.
In radiotherapy portal and verification imaging take an important place in daily quality assurance procedures. Different types of films and cassettes have to be used to gain an optimal result for photon and electron beams.
We describe a modification of a machine for daylight processing, which has been technically enabled not only to process all X-rays from simulator, brachytherapy, CT and MRI but all film materials from portal and verification imaging as well without changing system's configuration. Using a light gap, verification films are automatically differentiated from portal films or from film material from simulation and the cassettes are automatically loaded with the new verification film. Furtheron, we took some attention on cost effectivity.
The daylight processing machine is sufficiently integrated into daily routine work load and spares a lot of staff time. Higher primary costs are overbalanced within a few years by lower supporting costs (Table 1). This is especially due to lower film material costs (Table 2), but also a result of staff time reduction.
Radiotherapeutic departments may gain much comfort using a daylight processing machine as development unit.
在放射治疗中，射野影像和验证影像在日常质量保证程序中占据重要地位。为了获得光子束和电子束的最佳成像效果，必须使用不同类型的胶片和暗盒。
我们描述了一种日光冲洗设备的改进方法，通过技术手段，该设备不仅能够处理来自模拟定位机、近距离放射治疗、CT和MRI的所有X线影像，还能处理射野影像和验证影像的所有胶片材料，且无需改变系统配置。利用光隙，验证胶片能够自动与射野胶片或模拟定位胶片区分开来，暗盒也会自动装入新的验证胶片。此外，我们还关注了成本效益。
日光冲洗设备已充分融入日常工作流程，节省了大量人力时间。虽然初期成本较高，但几年内较低的维护成本将其抵消（表1）。这尤其得益于胶片材料成本的降低（表2），也是人力时间减少的结果。
放射治疗科室使用日光冲洗设备作为显影单元可获得诸多便利。
