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随着放射治疗学的发展,三维适形放疗(3DCRT)在全国范围内已逐渐变成放射治疗的常规技术,它能使治疗区的形状与靶区形状一致,从三维方向上进行剂量的控制,能提高局部控制率,减少正常组织的照射剂量[1]。保证精确的体位固定
With the development of radiation therapy, three-dimensional conformal radiation therapy (3DCRT) has gradually become a routine technique for radiation therapy nationwide. It can make the shape of the treatment area consistent with the shape of the target area and control the dose from the three-dimensional direction. Can increase the local control rate and reduce the radiation dose of normal tissue [1]. Ensure accurate position fixation