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3-dimensional conformal radiation therapy,3DCRT
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3-dimensional conformal radiation therapy,3DCRT
Encyclopedia
医学
放射治疗
释
3-dimensional conformal radiation therapy,3DCRT
三维适形放射治疗
利用患者电子计算机断层扫描(computed tomography, CT)图像重建三维的解剖结构,选择不同的入射方向,采用多叶光栅或铅挡形成与病变(靶区)形状一致的多个照射野,使得高剂量区剂量分布的形状在三维方向上与病变(靶区)的形状一致,同时使得病灶周围正常组织的受照剂量降低的放射治疗技术。
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