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Table 2 OAR dose volume parameters

From: Whole breast and regional nodal irradiation in prone versus supine position in left sided breast cancer

Organs at Risk

 

Axilla prone

Axilla supine

Significance

Partial axilla prone

Partial axilla supine

Significance

Heart

 

Volume (ml)

631 ± 109

649 ± 141

-

631 ± 109

649 ± 141

-

 

Dmean (Gy)

2.38 ± 0.28

2.52 ± 0.59

-

2.24 ± 0.85

2.83 ± 0.61

-

 

D02 (Gy)

14.83 ± 1.64

14.02 ± 5.60

-

16.18 ± 10.22

18.75 ± 7.94

-

 

V5 (%)

7.10 ± 1.93

6.83 ± 3.56

-

6.60 ± 4.32

7.79 ± 2.32

-

 

V10 (%)

3.47 ± 0.92

3.51 ± 2.35

-

3.69 ± 2.86

4.12 ± 1.91

-

 

V20 (%)

1.04 ± 0.39

1.23 ± 1.20

-

1.60 ± 1.86

1.90 ± 1.45

-

 

V30 (%)

0.10 ± 0.18

0.06 ± 0.05

-

0.66 ± 1.10

0.64 ± 1.02

-

Ipsilateral lung

 

Volume (ml)

1240 ± 364

1158 ± 290

-

1240 ± 364

1158 ± 290

-

 

Dmean

5.52 ± 0.73

7.51 ± 1.03

P < 0.05

4.22 ± 0.53

6.82 ± 1.35

P < 0.05

 

D02

28.44 ± 1.16

34.28 ± 4.05

P < 0.05

29.71 ± 1.83

34.19 ± 1.93

P < 0.05

 

V5

28.85 ± 1.62

35.35 ± 2.11

P < 0.05

20.32 ± 3.09

31.81 ± 5.45

P < 0.05

 

V10

16.91 ± 2.94

23.80 ± 2.77

P < 0.05

11.82 ± 1.30

20.54 ± 5.39

P < 0.05

 

V20

7.13 ± 1.69

13.59 ± 3.22

P < 0.05

5.65 ± 1.03

11.47 ± 4.03

P < 0.05

 

V30

1.50 ± 0.47

5.49 ± 3.46

P < 0.05

1.94 ± 0.80

5.01 ± 2.54

P < 0.05

Contralateral lung

 

Volume (ml)

1536 ± 303

1458 ± 318

-

1538 ± 303

1458 ± 318

-

 

Dmean

0.35 ± 0.04

0.60 ± 0.09

P < 0.05

0.31 ± 0.05

0.84 ± 0.25

P < 0.05

 

D02

0.93 ± 0.06

1.93 ± 0.21

P < 0.05

0.90 ± 0.10

4.28 ± 2.95

P < 0.05

 

V5

0.00 ± 0.00

0.04 ± 0.07

-

0.00 ± 0.00

1.30 ± 1.67

-

 

V10

0.00 ± 0.00

0.01 ± 0.03

-

0.00 ± 0.00

0.45 ± 0.58

-

 

V20

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

0.01 ± 0.01

-

 

V30

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

0.00 ± 0.00

-

Contralateral breast

 

Volume (ml)

703 ± 235

665 ± 232

-

703 ± 235

665 ± 232

-

 

Dmean

0.33 ± 0.07

0.83 ± 0.30

P < 0.05

0.36 ± 0.10

1.01 ± 0.28

P < 0.05

 

D02

1.07 ± 0.16

2.54 ± 0.84

P < 0.05

1.30 ± 0.45

3.31 ± 1.70

P < 0.05

 

V5

0.02 ± 0.05

0.20 ± 0.23

P < 0.05

0.03 ± 0.04

0.86 ± 1.45

-

 

V10

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

0.00 ± 0.00

-

 

V20

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

0.00 ± 0.00

-

 

V30

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

0.00 ± 0.00

-

Thyroid

 

Volume (ml)

22 ± 14

19 ± 15

-

22 ± 14

19 ± 15

-

 

Dmean

5.38 ± 1.37

10.96 ± 4.11

P < 0.05

7.05 ± 1.64

12.21 ± 3.69

P < 0.05

 

D02

18.63 ± 7.53

36.04 ± 3.00

P < 0.05

33.91 ± 3.00

36.83 ± 1.88

P < 0.05

 

V5

28.29 ± 6.33

47.29 ± 19.64

P < 0.05

32.55 ± 8.44

50.32 ± 19.46

P < 0.05

 

V10

17.48 ± 4.82

37.49 ± 16.60

P < 0.05

23.55 ± 5.95

40.15 ± 16.76

P < 0.05

 

V20

7.64 ± 4.82

24.66 ± 11.42

P < 0.05

13.73 ± 4.58

28.07 ± 9.88

P < 0.05

 

V30

2.57 ± 2.13

12.57 ± 7.46

P < 0.05

5.47 ± 2.63

17.21 ± 7.72

P < 0.05

Oesophagus

 

Volume (ml)

35 ± 16

27 ± 12

P < 0.05

35 ± 16

27 ± 12

P < 0.05

 

Dmean

1.11 ± 0.09

1.74 ± 0.78

P < 0.05

1.12 ± 0.14

2.88 ± 1.75

P < 0.05

 

D02

3.36 ± 1.80

8.33 ± 8.96

-

4.49 ± 2.09

16.92 ± 14.49

P < 0.05

 

V5

1.00 ± 1.53

3.73 ± 5.14

-

1.70 ± 1.83

9.91 ± 8.21

P < 0.05

 

V10

0.06 ± 0.08

1.85 ± 4.03

-

0.26 ± 0.32

6.25 ± 8.12

-

 

V20

0.00 ± 0.00

0.87 ± 1.94

-

0.00 ± 0.00

3.42 ± 4.83

-

 

V30

0.00 ± 0.00

0.00 ± 0.00

-

0.00 ± 0.00

1.53 ± 2.59

-

Humeral Head

 

Volume (ml)

57 ± 15

63 ± 23

-

57 ± 15

63 ± 23

-

 

Dmean

9.75 ± 3.75

7.74 ± 2.94

-

9.85 ± 3.64

10.69 ± 3.33

-

 

D02

21.90 ± 1.49

25.08 ± 7.98

-

23.39 ± 2.10

27.22 ± 3.37

-

 

V5

69.76 ± 22.06

47.14 ± 23.45

-

64.46 ± 20.25

56.82 ± 13.37

-

 

V10

45.47 ± 31.68

23.87 ± 15.82

-

43.80 ± 25.85

45.89 ± 16.08

-

 

V20

4.05 ± 1.50

8.68 ± 7.57

-

9.25 ± 6.17

19.60 ± 13.52

-

 

V30

0.03 ± 0.06

1.98 ± 3.00

-

0.01 ± 0.03

1.37 ± 2.00

-

Skin

 

Volume (ml)

34353 ± 9812

22946 ± 4460

-

34353 ± 9812

22946 ± 4460

-

 

D02

38.40 ± 3.61

40.25 ± 0.15

P < 0.05

37.19 ± 5.16

39.95 ± 0.54

P < 0.05

 

V105 (%)

0.19 ± 0.14

0.30 ± 0.10

-

0.14 ± 0.10

0.38 ± 0.14

P < 0.05

 

V105 (ml)

58.48 ± 37.01

68.86 ± 25.29

-

44.28 ± 36.22

91.48 ± 45.69

P < 0.05

 

V107 (%)

0.06 ± 0.05

0.10 ± 0.05

-

0.03 ± 0.04

0.12 ± 0.09

P < 0.05

 

V107 (ml)

17.85 ± 13.43

21.85 ± 11.43

-

9.77 ± 12.94

29.68 ± 27.28

P < 0.05

  1. Data are presented as group average ± standard deviation