154 / 815
Volume V
Dose D
PTV and CTV
D
2%
”close to max” replaces
D
max
D
98%
”close to min” replaces
D
min
D
50%
= D
median
D
mean
OAR and PRV
V
D
(e.g volume receiving more than 50 Gy)
V
50Gy
(parallel organs)
D
mean
(parallel organs)
D
2%
(serial organs)
100
100
75
50
25
75
50
25
%
Gy
Dose in ICRU83
Leval 2. Minimum level of reporting dose in IMRT
…AND…
-State the treatment planning system and algorithm used for planning
and delivery system used for treatment