Basic Treatment Planning

Dose in ICRU83 Leval 2. Minimum level of reporting dose in IMRT

PTV and CTV D 2%

%

”close to max” replaces D max ”close to min” replaces D min

100

D 98% D 50%

= D median

75

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)

50

Volume V 25

Gy

25

50

75

100

Dose D

…AND… -State the treatment planning system and algorithm used for planning and delivery system used for treatment