OAR

Max critical volume (cc)

Threshold dose (Gy)

Total Lung

1500

12.5

Total Lung

1000

13.5

Liver

700

21

Spinal cord

<0.35

23

Esophagus

<5

19.5

Heart

<15

32

Trachea

<4

16.5

Aorta

<10

47

Stomach

<10

18