Deep inspiration breath hold in the prone position retracts the heart from the breast and internal mammary lymph node region.

Mulliez, Thomas; Van de Velde, Joris; Veldeman, Liv; De Gersem, Werner; Vercauteren, Tom; Speleers, Bruno; Degen, Henk; Wouters, Johan et al. · Radiother Oncol · 2015

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Abstract

Deep inspiration breath hold in the prone position causes a caudal shift of the heart away from the nearly unmodified breast and internal mammary lymph node region, suggesting better heart protection for left-sided whole breast irradiation with or without regional nodal radiotherapy.

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