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Take home message:
Image-guidance for partial breast irradiation
Clips can be representative for
• the location of the tumor bed
• the location of the whole breast
Registering on clips is time-efficient and can allow for margin
reduction of the tumour bed PTV
Daily or eNAL
kV-CBCT, MV-CBCT, 2D kV are equivalent in terms of
accuracy if registering on clips
2D MV as well, if clips are visible
Penninkhof Radiother Oncol 2009