ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

Dose discrepancy due to changing anatomy Patient with a large tumor motion (3 cm)

2% 5% 10%

Max Dose Discrepancy

Tumor % in 1cc

Lung % 1cc

Mean CT Single CT

1.3% 6.0% 3.1% 10%

ESTRO IGRT 2018