立体定向放射治疗是高精度的放疗技术,其显著特点是靶区定位和摆位的准确以及靶区剂量的高度集中,因此,在实施治疗的过程中除制定严密的治疗计划外,精准的摆位和良好体位重复性是保证治疗顺利完成的关健。我们通过对400余例患者的治疗,总结了在摆位过程中所产生误差的处理方法, Stereotactic radiotherapy is a high-precision radiotherapy technology, which is characterized by the accuracy of the target area and the positioning of the target area and a high concentration of the target dose, therefore, in the implementation of the treatment process in addition to develop a rigorous treatment plan, the precise pendulum Bits and good posture repeatability is the key to ensure the successful completion of treatment. We through the treatment of more than 400 patients, summed up in the process of setting the error generated by the treatment,