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APPARATUS TO EMPLOY A MULTI-LAYER MULTI-LEAF COLLIMATOR WHEN ADMINISTERING A RADIATION THERAPY TREATMENT
APPARATUS TO EMPLOY A MULTI-LAYER MULTI-LEAF COLLIMATOR WHEN ADMINISTERING A RADIATION THERAPY TREATMENT
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机译:减少辐射治疗时使用多层多叶收集器的装置
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摘要
A control circuit 201 administers a radiation treatment plan that specifies a planned total radiation dose for a radiation treatment session for a given patient 207 by modulating a radiation beam 203 with at least one high-resolution aperture that is formed using one of a plurality of linearly-sequential high-resolution aperture possibilities. By one approach the foregoing comprises modulating the radiation beam using at least substantially only high-resolution apertures that are formed using a plurality of the linearly-sequential high-resolution aperture possibilities. In some cases the foregoing can comprise administering the radiation treatment plan using at least two separate radiation exposures for only a single treatment field, in which case, by one approach, each of the separate radiation exposures for the single treatment field can comprise modulating the radiation beam using at least substantially only high-resolution apertures.
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