Software novelA software novel
Novel software and conception of the proprietary software based software solution for intensity-modulated radiotherapy - Nguyen - 2016 - Medical Physics
Objective: To provide high-quality intensity-modulated radiation therapy (IMRT) using a novel generalised rare-oc collimator (SOC), the researchers present a novel paradigm for immediate apertuoptimisation (DAO) using a discreet rectangle. Twenty non-coplanar bars were chosen using a pillar generator and price optimisation methodology. Rectangle Aperturization ( "RAO") was applied to the SOC-based instant optical system to optimise the fluorescence charts using a rectangle display and create fluorescence charts that can be directly transformed into a series of available rectangle apours.
To optimise dosage distributions and minimise the number of aperture used, the overall goal was set to introduce an L1 punishment that reflects the differences between the prescribing and the projections, and an L1 sparity control concept to promote a small number of not zero basic square coefficents.
This optimisation issue was resolved with the Chambolle-Pock-Algorithmus, a primary-dual first order algorithms. RAO's capabilities were benchmarked against traditional two-stage instantaneous memory optimisation techniques that included fluorescence card optimisation and straight layering for the same number of Segmented Multiple Leaf Collimators (MLC) (DMS). In the RAO drawings, the lead times for the supply of staged SOCs for the stages 1, 2 and 4 design were analyzed to determine the improved supply efficiencies as a feature of the outcomes: N:
Similar PTV dosishomogeneity and cover were found between the RAO and DMS plan. RAO schedules were slightly inferior to DMS schedules in CR. Twelve supply sectors were supplied on averages. Sixty-eight sections per ray for the RAO and DMS drawings. Mean iris sizes of the RAO drawings were 3.9 x greater than those of the strain gauge drawings.
DAO and range optimisation approaches allowed high value instantaneous imaging schedules using a low complexity collaborator. Metering accuracy is similar or slightly better than traditional MLC-based instant messaging schedules with the same number of supply lines. While the SOC SIMRT performance can be significantly increased by an increase in the number of sheets, it is still significantly lower than the number of sheets in a standard SOC.
Quihui Lyu, Daniel O'Connor, Dan Ruan, Victoria Yu, Dan Nguyen and Ke Sheng, VMAT Optimisation with Driving Collimation Rotational, Medical Physics, 45, 6, (2399-2410), (2018). and Ke Sheng, Medical Physics, 44, 11, (5596-5609), (2017).
Nguyen, Qihui Lyu, Ruan, O'Connor, Low and Sheng, A complete formula for volume treatment planing, Medical Physics, 43, 7, (4263-4272), (2016).