应用切片法制作静态调强挡块研究与实验

目的：通过静态调强放射新方法的研究，使得各级医院能利用现有普通放疗设备．通过增加精确定位设备和计算机放射治疗计划系统，开展静态调强放射治疗。方法：在适形放射治疗技术的基础上，提出了一种“切片”的方法，从而能利用现有简单设备制作出三维熔铅调强挡块。结果：实验和研究表明，运用该方法制作的三维熔铅调强挡块，不仅能实现靶区高剂量的形状在三维方向上与肿瘤的形状一致，而且可对照射野内剂量分布按要求的方式调整。结论：该方法简单可行，性能价格比较高，在我国各级中小医院具有良好的临床应用前景和推广意义．

Research and experiment of compensator made by split method for static intensity-modulated radiation therapy

Objective To help the hospitals at all levels in China to realize IMRT by adding the accurate location equipments and TPS based on the existing general radiation therapy from research of the new method for static Intensitymodulated radiation therapy. Method Based on the controlled technique of CRT, a new split method for fabricating the three-dimensional physics compensator to achieve the IMRT was developed. Results The Experiment manifested that the compensator fabricated by the way could make the high dosage shape of target in accordance with the form of tumor and could adjust the distribution of the dosage according to remedy requirement. Conclusion The method is simple and feasible, and has brilliant clinical prospective and popularized significance.