ASMR

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