Planning OAR Tolerances Flashcards Preview

CSB092 > Planning OAR Tolerances > Flashcards

Flashcards in Planning OAR Tolerances Deck (25):
1

Tolerances for Rectum

V50<50%
V60<35%
V65<25%
V70<20%

2

End Point toxcity for rectum

- grade 3+
- diarhhoea
- pain
- ulceration

3

Tolerances for bladder

V65<50%
V70<35%
V75<25%
V80<15%

4

End point toxcity for bladder

- grade 3+
- dysuria
- incontinence

5

Tolerances for femoral H & N

V35<100%
V50<10%

6

End point for femoral H & N

- femoral neck fracture
- femoral head necrosis

7

Tolerance for penile bulb

D90<50Gy

8

End point for penile bulb

- erectile dysfunction

9

Tolerance for SC

max 45Gy

10

End point for SC

myelopathy and paralysis

11

Tolerance for brainstem

max 54Gy

12

End point for brainstem

neuropathy or necrosis

13

Tolerance for optic chiasm

max 50/54Gy

14

End point for optic chiasm

optic neuropathy

15

Tolerance for lens

max 7Gy

16

End point for lens

blindness

17

Tolerance for parotid

bilteral mean 25Gy
unilateral mean 20Gy

18

End point for parotid

long term salivary function <25%

19

Tolerance for oral cavity

mean 40Gy

20

Tolerance for ipsilateral lung

V20<20%

21

End point for lung

symptomatic pneumonitis

22

Tolerance for heart

V25<10%
mean <6Gy

23

End point for heart

pericarditis

24

Tolerance for cochlea

mean 45Gy

25

End point for cochlea

sensory-neural hearing loss