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beam type - static, 所有的出束控制點(diǎn)的屬性是不變的
- dynamic，在一個(gè)或多個(gè)控制點(diǎn)的屬性是可變的，gantry運(yùn)動(dòng)中出束
STATIC = All Control Point Sequence (300A,0111) attributes remain unchanged between consecutive pairs of control points with changing Cumulative Meterset Weight (300A,0134). DYNAMIC = One or more Control Point Sequence (300A,0111) attributes change between one or more consecutive pairs of control points with changing Cumulative Meterset Weight (300A,0134).
beam technical - step and shoot，MLC變化到某個(gè)形狀，出束，再變化，再出束，不會(huì)同時(shí)進(jìn)行。
- sliding window，MLC連續(xù)變化，連續(xù)出束，同時(shí)進(jìn)行。
planning type - 2D, general plan，常規(guī)計(jì)劃；
- Conformal，適形計(jì)劃；
- IMRT，調(diào)強(qiáng)計(jì)劃；
- conformal arc，適形拉弧治療，MLC實(shí)行變化
- burst arc，西門(mén)子的模式，只能在很小的弧度內(nèi)連續(xù)出束，當(dāng)MLC移動(dòng)時(shí)是不能出束的，只有當(dāng)MLC形狀已經(jīng)適形完成，才會(huì)在很小的弧度出束
- continuous arc，例如醫(yī)科達(dá)的VMAT和瓦里安的Rapid arc，在指定弧度內(nèi)連續(xù)出束，且同時(shí)MLC性狀發(fā)生變化。
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