Fritz P, Bauer M, Fehrentz D, zum Winkel K, Weidauer H, Singer R
Strahlentherapie. 1985 May;161(5):293-8.
The contact irradiation in the region of pharynx and mouth with an afterloading unit is presented. Twelve patients with recurrent carcinomas of the squamous cell epithelium have been treated. A stable and reproducible positioning of the source probes in the tumor region is made possible by special applicator prostheses which are adapted to the post-operative situation. The irradiation scheme is based on the transformation of the source co-ordinates from the stereoradiographic localization system into the co-ordinate system of the computed tomogram. At least three fixed metal points which are inserted in the applicator prostheses and visualized by stereoradiography as well as by computed tomography serve as mutual reference points for both co-ordinate systems. The source positioning in the tumor region is optimized by CT irradiation planning. Three cases are presented in order to describe the principles of the method. Preliminary results are discussed.
介绍了使用后装装置对咽和口腔区域进行接触照射的情况。对12例复发性鳞状上皮癌患者进行了治疗。通过适应术后情况的特殊施源器假体，可在肿瘤区域实现源探头的稳定且可重复定位。照射方案基于将源坐标从立体放射定位系统转换到计算机断层扫描的坐标系。至少三个插入施源器假体并通过立体放射摄影以及计算机断层扫描可视化的固定金属点作为两个坐标系的相互参考点。通过CT照射计划优化肿瘤区域的源定位。给出三个病例以描述该方法的原理，并讨论了初步结果。
