Gynae BT 2017

EBRT techniques for nodal boost

Improving the technique !

IMRT – PITFALLS: Uncertainties in hitting the target volume

Nodes move: up to 8 mm, majority < 4 mm

Maximal margins (computer)

9

8

7

6

5

4

3 margin (ml)

2

1

0

med

lat

ant

post

sup

inf

Less movement than primary tumor, but should be taken into account!