170 / 1708
Impact of postop. RT on outcome (54 Gy)
Actuarial local control rates
months
0
0.2
0.4
0.6
0.8
1
0
24
48
72
96
120
GTR / RT :
n = 13
PFS 10 years : 100%
GTR alone : n = 19
PFS 10 years : 50.0%
STR / RT :
n = 12
PFS 10 years : 36.0%
GTR alone versus
GTR + RT :
p = 0.018
GTR + RT versus
STR + RT :
p= 0.003
Probability
Intracranial ependymoma
Rogers et al., 2005