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)
Max Dose
Discrepancy
Tumor
% in 1cc
Lung
% 1cc
Mean CT 0.3% 1.3%
Single CT 1.5% 5%
1% 2% 5%
ESTRO IGRT 2018