1483 / 1601
Risk- Incorrect
planning or margins
Engels IJROBP 2009
No markers
Implanted markers
No of patients
213
25
Margins (mm)
6 mm right left (RL)
10 mm anterior posterior
(AP) and cranial–caudal
(CC)
3 mm LR and 5 mm AP
and CC.
5-year freedom
from biochemical
failure
91%
58%