ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

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Dose discrepancy due to changing anatomy Patient with a small tumor motion (1.5 cm)

1% 2% 5%

Max Dose Discrepancy

Tumor % in 1cc

Lung % 1cc

Mean CT Single CT

0.3% 1.3%

1.5%

5%

ESTRO IGRT 2018

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