Room: ePoster Forums
Purpose: To investigate whether a knowledge base treatment planning model can smoothly migrate to different machine and TPS
Methods: Fifty cervical cancer patients'IMRT plans were used to develop a knowledge-based planning model. This model based on Pinnacle3 8.0m(Phillips Medical Systemï¼ŒFitchburgï¼ŒWI) and Synergy (Elekta AB, Stockholm, Sweden). Fifteen patients were used for verification. Three groups of plans were generated as follows: KBP planning and manual planning with Eclipse 13.5(Varian Medical Systems, Inc. Palo Alto, USA) and Truebeam Varian Medical Systems, Inc. Palo Alto, USA); 2. KBP planning and manual planning with Pinnacle and Truebeam; 3. KBP planning and manual planning with Pinnacle and synergy. DVH quantitative analysis was performed to make comparison between the RapidPlan generated plans and the manual plans in 3 groups respectively
Results: In group1 and group2, KBP plans shows similar quality of PTV with manual plans. While KBP plans improved D2% ï¼ˆ0.95Gyï¼Œp<0.01ï¼‰and HI(0.02,p<0.01) in group3.For bladder, RapidPlan decrease the average value of V30, V40 and mean dose in all 3 groups by 2% to 7%. RapidPlan also generated better mean dose of rectum and bowel in 3 groups.
Conclusion: It is feasible to generate plans with different TPS and machine parameters by one KBP model
Not Applicable / None Entered.