603 / 671
Magnitude of risk of radiation myelitis in
a patients reirradiated for painful spine
metastases?
A) 20%
B) 5%
C) 2%
D) <1%
Course I: 30 Gy/10 frx.; course II: 30 Gy/10 frx; 6 months interval
D
2
=
1+( )
2+( )
*
D
1
EQD
2 =
3+2
2+2
∗ 30 = 37.5
Repeat the vote on next slide!