Image-Guided Radiotherapy and Chemotherapy in Gynaecological Cancer

ITV-T LR and PTV-T LR

Standard: -

10-15mm ITV margin

- -

5mm PTV margin

Total 15-20mm margin

CTV to PTV: 15-20mm

Individualised approach: - Several treatment planning images: MRI, CT, full bladder, empty bladder - Review anatomy on treatment planning images - Apply margin according to predicted motion - Monitor on daily CBCT

CTV-HR region most critical

Maximum rectal filling at treatment planning scan: 40mm