Kaulich T W, Ahlemann L M
Strahlentherapie. 1983 Jun;159(6):344-7.
By superimposing only two moving fields, it is nearly always possible to adapt an 80% isodose to asymmetric target volumes. By means of wedge filters, it is possible to create asymmetric 80% isodoses with only one irradiation field. The authors compare four different moving field techniques for the irradiation of the left kidney region with regard to the radiation exposure of various transverse body regions. If wedge filters are used for moving field therapy, the average dose values of the different organs are generally significantly inferior to those measured in case of conventional moving field therapy. The reduction of the total volume exposure by 20% and of the liver exposure by nearly 50% is most favorable. Another great advantage is the complete sparing of the remaining kidney. These quantitative advantages are supplemented by the qualitative factor concerning the considerably simplified therapy planning and the easy focussing.
仅通过叠加两个移动野，几乎总是能够使80%等剂量线适配不对称的靶区体积。借助楔形滤过器，仅用一个照射野就有可能产生不对称的80%等剂量线。作者比较了四种不同的移动野技术在照射左肾区时对不同横向身体区域的辐射暴露情况。如果将楔形滤过器用于移动野治疗，不同器官的平均剂量值通常明显低于传统移动野治疗时所测得的值。总容积暴露减少20%以及肝脏暴露减少近50%是最为有利的。另一个很大的优点是对健侧肾完全起到了保护作用。这些定量优势还得到了定性因素的补充，即治疗计划大大简化且易于聚焦。
