众所周知,恶性肿瘤的治疗是一个复杂而棘手的问题,目前临床常用的治疗手段仍以手术、放疗、化疗为主。近年来进行肿瘤放疗的患者与日俱增,然而放疗的效果不够理想,即使用最大可能的照射剂量或改变照射方法,有时仍达不到根治目的,而且增加了患者生理和心理上的痛苦,让患者难于接 As we all know, the treatment of malignant tumors is a complex and difficult issue, the current clinical treatment is still the main method of surgery, radiotherapy, chemotherapy. In recent years, the number of patients who have undergone tumor radiotherapy has been increasing. However, the effect of radiotherapy is not satisfactory. Even at the maximum possible radiation dose or irradiation method, radical treatment is sometimes not achieved and the patient’s physical and psychological pain is increased, making the patient difficult Pick up