| Summary: | In this survey we propose a new hybrid simultaneous integrated boost (SIB) delivery method for breast radiotherapy that was implemented in our department of Radiation Oncology. This technique encompasses non-modulated tangential fields as well as VMAT-arcs and combines the robustness and the dose confinement properties of tangential opposed fields with the benefits of a complex VMAT-technique. The results of the dosimetric evaluation indicate that the proposed technique enables a balanced mix between dose coverage, homogeneity and conformity versus the exposure of the organs-at-risks. More precisely, the proposed technique is on par with other recently published SIB techniques for breast radiotherapy.
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