Inter-institutional variation in intensity-modulated radiotherapy for breast cancer in Korea (KROG 19-01)
- 주제(키워드) Breast cancer , Dose-volume constraint , Intensity-modulated radiation therapy , Target volume , Variation
- 등재 SCIE, SCOPUS
- 발행기관 International Institute of Anticancer Research
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000181945
- 본문언어 영어
- Published As http://dx.doi.org/10.21873/anticanres.15100
초록/요약
Background/Aim: To present the variations in the target delineation and the planning results of intensity-modulated radiation therapy (IMRT) for breast cancers. Patients and Methods: We requested the target volumes and organs at risk delineation for two cases of left breast cancers, and evaluated the IMRT plans including the supraclavicular and internal mammary node irradiation. Results: Twenty-one institutions participated in this study. Differences in the planning target volume among institutions reached up to three-times for breast-conserving surgery (BCS) case and five-times for mastectomy case. Mean heart doses ranged from 3.3 to 24.1 Gy for BCS case and from 5.0 to 26.5 Gy for mastectomy case. Ipsilateral lung volumes receiving more than 20 Gy ranged from 4.7 to 57.4% for BCS case and from 16.4 to 55.5% for mastectomy case. Conclusion: There were large variations in the target delineation and planning results of IMRT for breast cancers among institutions. Considering the increased use of breast IMRT, more standardized protocols are needed. © 2021 International Institute of Anticancer Research. All rights reserved.
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