Image-Guided Radiotherapy and Chemotherapy in Gynaecological Cancer

Skin marks versus daily bony registration

• Daily image guidance with bony fusion • Initial set-up according to skin marks • Image fusion according to bone • Verification of fusion • Couch correction • Typically 5mm PTV margin

CT

CBCT

• Set-up on skin marks (no daily image guidance): • Imaging at first RT or e.g. weekly • Typically 7-10mm PTV margin

L.Laursen, RO 105 (2012) 220–225