Objective To explore the target dose analysis,adverse reactions and cosmetic effects of 3D technol-ogy filling the tumor cavity for conformal radiotherapy after breast-conserving surgery.Methods Forty-eight patients with breast cancer admitted to the first affiliated hospital of Xi'an Jiaotong university from January 2021 to December 2022 were selected and divided into a 3D technology filling group(24 cases)and a control group(24 cases)according to different surgeries.All patients underwent radical breast cancer surgery,with only different breast-conserving methods,followed by APBI under IMRT plan.Results The CI and HI of conformal radiotherapy after breast-conserving surgery using 3D technology filling the tumor cavity were significantly higher than those of conventional breast-conserving surger-y.The lung and heart OAR doses,V5,V10,V20,V30,V40,and V50 in the 3D technology filling group were significantly lower than those in the conventional breast-conserving group.There was no significant difference in the incidence of skin damage,arrhythmia,bone marrow suppression,and gastrointestinal reaction between the two groups.The cosmetic effect of patients in the 3D technology filling group was significantly better than that in the conventional breast-conserving group.Conclusions The application of 3D technology filling the tumor cavity after breast-conserving surgery signifi-cantly enhances the cosmetic effect of the breast and does not affect the safety and effectiveness of radiotherapy.
Breast neoplasmsMastectomy,segmentalRadiotherapy,conformalBreast implantationChemora-diotherapy
维普
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