Table 3 Dose distribution of initial RT and re-RT

Lung dose volume (%)

 V5

  Ipsilateral lung

43

32

55

  Contralateral lung

6

0.5

11

  Total lung

22

16

30

 V20

  Ipsilateral lung

32

15

38

  Contralateral lung

2

0

3

  Total lung

14

7

17

Mean dose, Gy₃

  Ipsilateral lung

17

10

25

  Contralateral lung

1

1

3

  Total lung

8

5

12

  Heart

3

7

5

Total median dose, Gy₃

D1cc

D10cc

  Spinal cord

32

25

  Esophagus

42

33

  Aorta

87

65

  Pulmonary artery

93

61

  Heart

49

46

  Trachea

87

41

  Skin

59

36

Total mean volume,cc

  Spinal cord ≥40 Gy₃

0.3

  Spinal cord ≥50 Gy₃

0

  Heart ≥70 Gy₃

0

  Esophagus ≥70 Gy₃

5

  Aorta ≥70 Gy₃

7

  Pulmonary artery ≥70 Gy₃

4