60年代以来,楔形滤过板在放射治疗中应用逐渐普及,楔形板的引进,起初主要是为了解决诸如上颌窦等偏体位一侧肿瘤的用两野交叉照射时剂量不均匀性问题,并积累了丰富的经验。选定合适角度的楔形板,可得到较理想的适合靶区的剂量分布。同时,利用适当角度的楔形板,对人体曲面和 Since the 1960s, wedge-shaped filtration plates have become increasingly popular in radiotherapy. The introduction of wedge plates was primarily intended to solve the problem of uneven doses of radiation in two-field crossovers such as the maxillary sinus and other sideways tumors. A wealth of experience. Selecting a wedge plate with a suitable angle can give a more ideal dose distribution for the target area. At the same time, using the right angle wedge plate, the