Course book Advanced Treatment Planning 2018

OARs constraints/objectives

Constraints:

•

1. Spinal cord:

Dmax < 45 Gy Dmax < 50 Gy

2. PRV Spinal cord:

3. Brainstem:

V59 Gy < 1 cc

(QUANTEC)

Objectives:

•

1. Parotids:

Dmean < 25 Gy (primary objective, Ptox < 20%) Dmean < 39 Gy (secondary objective, Ptox < 50%)

2. Mandible:

EQD2 Dmax < 70 Gy

(RTOG 0615)

3. Cochlea:

Dmean < 35 Gy

(QUANTEC)

4. Lens

Dmax < 7 Gy

(RTOG 0539)

5. Brain:

EQD2 Dmax < 72 Gy

(QUANTEC)

6. Thyroid:

Dmean < 45 Gy

(RTOG 0225) (RTOG 0615)

V30 Gy < 62.5 %