Table 2 Normal tissue constraints

Spinal cord

<0.035

14

Myelitis

<0.35

10

<1.2

7

Cauda Equina

<0.035

16

Neuritis

<5

14

Sacral Plexus

<0.035

18

Neuropathy

<5

14.4

Esophagus^a

<0.035

16

stenosis/fistula

<5

11.9

Heart/Pericardium

<0.035

22

Pericarditis

<15

16

Great vessels^a

<0.035

37

Aneurysm

<10

31

Trachea^a and Larynx

<0.035

20.2

stenosis/fistula

<4

10.5

Skin

<0.035

26

Ulceration

<10

23

Stomach

<0.035

16

ulceration/fistula

<10

11.2

Renal hilum/vascular trunk

<2/3 volume

10.6

malignant hypertension

Parallel tissue

Critical volume in cm³

Dose Max

Endpoint (> Grade 3)

Lung (Right & Left)

1000

7.4

Pneumonitis

Renal cortex (Right & Left)

200

8.4

Basic renal function