Hypofractionated radiotherapy with simultaneous-integrated boost after breast-conserving surgery compared to standard boost-applications using helical tomotherapy with TomoEdge
Background/Aim: This comparative plan study examines a range of boost-radiation methods in adjuvant radiotherapy of breast cancer using helical intensity-modulated radiotherapy with TomoEdge-technique. Impact of hypofractionated radiation with simultaneous-integrated boost (SIB) and influence of dif...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
April 3, 2021
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| In: |
Anticancer research
Year: 2021, Jahrgang: 41, Heft: 4, Pages: 1909-1920 |
| ISSN: | 1791-7530 |
| DOI: | 10.21873/anticanres.14957 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.21873/anticanres.14957 Verlag, lizenzpflichtig, Volltext: https://ar.iiarjournals.org/content/41/4/1909 
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| Verfasserangaben: | Felix Zwicker, Sebastian Hoefel, Corinna Kirchner, Peter E. Huber, Juergen Debus and Michael Schempp |
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| 245 | 1 | 0 | |a Hypofractionated radiotherapy with simultaneous-integrated boost after breast-conserving surgery compared to standard boost-applications using helical tomotherapy with TomoEdge |c Felix Zwicker, Sebastian Hoefel, Corinna Kirchner, Peter E. Huber, Juergen Debus and Michael Schempp |
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| 520 | |a Background/Aim: This comparative plan study examines a range of boost-radiation methods in adjuvant radiotherapy of breast cancer using helical intensity-modulated radiotherapy with TomoEdge-technique. Impact of hypofractionated radiation with simultaneous-integrated boost (SIB) and influence of differing assumed α/β-values were examined. Patients and Methods: For 10 patients with left-sided breast cancer each four helical IMRT-plans with TomoEdge-technique were created: hypofractionated+SIB (H-SIB) (42.4/54.4 Gy, 16 fractions), normofractionated+SIB (N-SIB) (50.4/64.4 Gy, 28 fractions), hypofractionated+sequential-boost (H-SB) (42.4 Gy/16 fractions+16 Gy/8 fractions), normofractionated+ sequential-boost (N-SB) (50.4 Gy/28 fractions+16 Gy/8 fractions). Equivalent doses (EQD2) to organs-at-risk (OAR) and irradiated mammary-gland were analysed for different assumed α/β-values. Results: The mean EQD2 to OAR was significantly lower using hypofractionated radiation-techniques. H-SIB and H-SB were not significantly different. H-SIB and N-SIB conformed significantly better to the breast planning-target volume (PTV) and boost-volume (BV) than H-SB and N-SB. Regarding BV, mean EQD2 was significantly higher for all α/β-values investigated when using H-SIB and N-SIB. Regarding PTV, there were no clinically relevant differences. Conclusion: Relating to dosimetry, H-SIB is effective compared to standard-boost-techniques. | ||
| 650 | 4 | |a breast cancer | |
| 650 | 4 | |a helical tomotherapy | |
| 650 | 4 | |a Hypofractionated radiotherapy | |
| 650 | 4 | |a IMRT | |
| 650 | 4 | |a SIB | |
| 650 | 4 | |a simultaneous integrated boost | |
| 650 | 4 | |a TomoEdge | |
| 700 | 1 | |a Hoefel, Sebastian |e VerfasserIn |4 aut | |
| 700 | 1 | |a Kirchner, Corinna |e VerfasserIn |4 aut | |
| 700 | 1 | |a Huber, Peter E. |d 1965- |e VerfasserIn |0 (DE-588)1074678869 |0 (DE-627)832350109 |0 (DE-576)442767803 |4 aut | |
| 700 | 1 | |a Debus, Jürgen |d 1964- |e VerfasserIn |0 (DE-588)1022671421 |0 (DE-627)717025780 |0 (DE-576)365774944 |4 aut | |
| 700 | 1 | |a Schempp, Michael |e VerfasserIn |4 aut | |
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