Dosimetry Comparison between a Two-Stage Synthetic Design and an Independently Designed Second-Course Plan in a Staged Prostate Modulated Radiotherapy Program
Objective:To compare the application effect of two-stage synthetic design and independently designed second course plan in chemotherapy treatment of prostate cancer patients,and to discuss the metrological differences.Methods:Thirty patients with prostate cancer admitted to Yangjiang People's Hospital from July 1,2021 to August 30,2022 were selected as the study objects.All patients underwent a segmented intensity modulated radiotherapy program,with a two-stage composite design as the control group and an independent design as the observation group.The number of machine hops,number of subfields,dosimetry of target area and organs at risk were compared between the two groups under different treatment regiments.Results:There was no significant difference in the number of subfields between the control group and the observation group,the number of machine hops in the observation group was less than that in the control group,and the dosimetry of the target area and the organs at risk in the observation group was lower than that in the control group,P＜0.05,with statistical difference.Conclusion:Compared with traditional two-stage synthetic design radiotherapy,the independent design scheme is more effective in prostate cancer radiotherapy,with fewer doses and fewer machine hops required,and is worthy of clinical promotion and implementation.
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