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
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