【摘要】 上世纪末放射治疗技术出现了质的飞跃,这体现在以下三项新技术中,即立体定向放射外科、三维适形放射治疗和逆向计划调强放射治疗。而上述新技术的实现都与肿瘤精确定位密切相关,尤其对体部立体定向精确放射治疗而言,其体部机械定位系统是保证治疗精确性的核心。本文介绍了一种用于体部精确放射治疗的新型定位系统,它以分离结构替代原整体结构,提高了易用性,采用单段Z形定位标记杆保证定位精度。该新系统具有调节方便、移动轻巧、拆卸容易和定位准确的特点,为有效的肿瘤放射治疗提供了良好的条件,值得临床推广。更多还原

【Abstract】 In the end of last century,there was a leap in the technological quality of radiotherapy,which is incarnated in three new technologies: Stereotactic radiation surgery(SRS),three-dimensional conformal radiation therapy(3D-CRT) and intensity modulated radiation therapy(IMRT).However, the achievement of these technologies has a close relationship with the precise orientation of tumour.Especially,in terms of body stereotactic precise radiation therapy,its body mechanical orientation system is the kernel to guarantee the accuracy of radiotherapy.This paper presents a novel mechanical orientation system for body precise radiotherapy.It is characterized by flexible adjustment,deft removal,easy disassembly and accurate orientation using apart structure to substitute old integer structure and adopting single segment Z shape orientation marker staff.The new mechanical orientation system guarantees the effect of tumour radiotherapy,which is worthy to be recommended for clinical use.更多还原