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三维适形放射治疗
释义
三维适形放射治疗
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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Phylogenetic tree
phylogenetic tree
phylogenetic tree analysis
phylogenomics
phylogeny
phylogeny and phylogenetic development
Phylogeny of Shangshi
phylogeographic structure
phylum
physcoin
Physic-activation process
physical
Physical Ability Analysis
physical absorption
physical abuse
physical access control
physical accounting of resources
physical accounting of water resources
physical acoustics
physical activation volume
physical activity and exercise
physical activity epidemiology
Physical activity level coefficient
physical activity level,PAL
physical address
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