Gynae BT 2017

Volume is important!

K Tanderup et al, Radiother Oncol 2010

140

Optimised

130

120

110

100

90

80

70

HR-CTV D90 optimized

11% needles

64% needles

60

50

0 10 20 30 40 50 60 70 80 90 100 110

Volume HR CTV, cm 3

Application of needles

Violation of OAR constraint

28