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FRACTIONATION SELECTION TOOL IN RADIOTHERAPY PLANNING
FRACTIONATION SELECTION TOOL IN RADIOTHERAPY PLANNING
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机译:放射治疗计划中的分馏选择工具
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摘要
Fractionation optimization receives inputs including a radiation dose distribution to be delivered by fractionated radiation therapy, maximum and minimum number of fractions, and Biologically Effective Dose (BED) constraints for one or more organs-at-risk. A two-dimensional (2D) graph is displayed of a parameter X equal to or proportional to (I) versus a parameter Y equal to or proportional to (II) where N is the number of fractions, D is a total radiation dose to be delivered by the fractionated radiation therapy, and dt is the fractional dose in fraction t. A constraint BED lines are displayed on the 2D graph depicting each BED constraint. A marker is displayed at a location on the 2D graph defined by a current fractionation and a current total dose. A new value for the current fractionation and/or the current total dose is received, and the marker is updated accordingly. Alternatively a second marker is displayed showing the new fractionation scheme along with its comparative advantages and disadvantages with respect to the current fractionation.
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机译:分级优化接收输入,包括通过分级放射治疗所要递送的放射剂量分布,最大和最小级分数量,以及一个或多个有风险器官的生物有效剂量(BED)约束。显示二维(2D)图,其中参数X等于或正比于(I),而参数Y等于或正比于(II),其中N是小数,D是要达到的总辐射剂量由分段放射疗法提供,d t Sub>是分数t中的分数剂量。约束BED线显示在描绘每个BED约束的2D图形上。在2D图表上由当前分数和当前总剂量定义的位置处显示标记。接收当前分级和/或当前总剂量的新值,并相应地更新标记。或者,显示第二个标记,显示新的分级方案及其相对于当前分级的比较优点和缺点。
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