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Surgical Clips
•
Act as a surrogate for the tumour bed
•
Improve accuracy in delineation and used for positional
verification
•
Clip insertion after breast conservation surgery
•
Caution artefact on planning CT
Impact on electron beam dosimetry?
•
Either use directly in match or export isodose lines from
planning to ensure they fall within required dose
Donovan
et al
., 2012
Similar to Post Prostatectomy clips