paediatrics Brussels 17

Advanced Stages of Hodgkin`s disease

COG relative Dose reduct.

COG absolute Dose reduct.

V5 Volume CCSS

V5 COG

Mean dose reduction at OAR Influence Volume vs dose

breast

70.0%

11.6 Gy

59%

28% 27% smaller volume

heart

55.1%

17.4 Gy

99%

75% 9% smaller volume

lung

51.0%

11.1 Gy

2% smaller volume

thyroid 47.2%

19.0 Gy

Dose reduction

Advanced stage do not profit as much as early stages from Volume reduction Extended field vs Involved -side