发明名称 |
AN INTERACTIVE DOSE GRADIENT BASED OPTIMIZATION TECHNIQUE TO CONTROL IMRT DELIVERY COMPLEXITY |
摘要 |
A method for dose-gradient based optimization of an intensity modulated radiation therapy plan. First, an optimizer (6) performs a first optimization (40) of the plan to generate dose distributions corresponding to the plan. Next, the optimizer (6) generates a beam specific dose gradient map (42) for each beam of the plan. Then, new dose gradients are specified (44) for the plan. Last, the optimizer (6) performs a final optimization (46) using the new dose gradients. The final optimization is given the new dose gradients as soft constraints into an objective function. The optimizer (3) applies a limiting factor to the objective function such that a first dose gradient is limited by the optimizer only if the first dose gradient exceeds the new dose gradient for a specific beamlet. |
申请公布号 |
EP2994195(A2) |
申请公布日期 |
2016.03.16 |
申请号 |
EP20140723886 |
申请日期 |
2014.04.17 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
RANGANATHAN, VAITHEESWARAN;JOE ANTO, GIPSON;KUMAR, PRASHANT;KRISHNAIYER RAMAN, SIVARAMAKRISHNAN;MAHAJAN, DEEPAK UDDHAVRAO |
分类号 |
A61N5/10 |
主分类号 |
A61N5/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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