１９９７年，我院与中科院大恒公司联合研制国产体部立体定向适形放疗系统（俗称体部Ｘ刀），经国家鉴定率先在我院用于临床。两年来的临床验证治疗，认为操作方便、经济。近期效果好；而且采用头部模十字面罩，改变固定装置，还可以适形治疗颅内肿瘤。现将有关技术和经验介绍 In 1997, our hospital and the Chinese Academy of Sciences Daheng company jointly developed domestic body stereotactic conformal radiotherapy system (commonly known as the body X knife), the first national identification in our hospital for clinical use. Two years of clinical verification treatment, that the operation is convenient and economical. The recent effect is good; and the head mold cross mask, changing the fixation device, you can also conformal treatment of intracranial tumors. Now the relevant technology and experience introduction