摘要
精确放疗在临床已得到广泛应用，但在实施过程中存在很多影响放疗准确性的因素，最终可明显影响治疗效果。腹部肿瘤精确放疗过程中存在不确定性因素，总结以往的研究数据，分析呼吸运动、摆位、体位及固定技术、体重、肿瘤自身退缩及肿瘤周围器官运动与充盈等情况对精确放疗的影响，有助于对临床工作中要注意的问题进行探讨。
The precise radiotherapy has been widely used in the clinics. But there are many factors that affect the accuracy in the course of implementation. Finally the effect of radiotherapy is affected. These factors are reviewed. And the previous research data about the abdomen tumors is summed up. Also how the accuracy was affected by the respiratory movement, positioning, position fixed technology, weight, retraction and motion of the tumor and the situation of surrounding organs will be analyzed. At last, how to avoid these errors in clinics will be discussed.
出处
《国际放射医学核医学杂志》
2008年第6期360-362,378,共4页
International Journal of Radiation Medicine and Nuclear Medicine
基金
国家自然科学基金（10705016）
2.江苏省自然科学基金（BK2007553）
关键词
腹部肿瘤
放射疗法
不确定性
Abdomen neoplasms
Radiotherapy
Inaccuracy
