Table 2 Dosimetric parameters of PTV and OARs for 10 cases of right breast cancer after radical mastectomy

 Coverage Index

94.51 ± 1.28

95.14 ± 0.80

−0.63(− 1.26, 0)

0.050

 D_mean

52.06 ± 0.20

52.18 ± 0.19

−0.12(− 0.30, 0.06)

0.174

 D_2%

53.97 ± 0.31

54.10 ± 0.30

−0.13(− 0.36, 0.09)

0.208

 D_98%

47.69 ± 1.18

48.07 ± 0.97

−0.38(− 0.67, − 0.09)

0.017

 HI

1.08 ± 0.01

1.08 ± 0.01

0(−0.003,0.003)

1.000

 CI

0.76 ± 0.04

0.75 ± 0.04

0.01(−0.002, 0.014)

0.140

 D_mean

39.05 ± 3.39

38.61 ± 3.19

0.45(0.08, 0.81)

0.022

 V₅

97.87 ± 2.16

96.72 ± 3.19

1.15(0.28,2.02)

0.015

 V₁₀

91.29 ± 4.15

89.46 ± 4.37

1.83(1.07, 2.59)

0.000

 V₂₀

82.01 ± 6.91

80.14 ± 6.74

1.87(0.88, 2.86)

0.002

 V₃₀

74.16 ± 9.17

72.92 ± 8.25

1.24(0.21, 2.27)

0.023

 V₄₀

63.64 ± 9.97

62.99 ± 9.56

0.65(0.09, 1.21)

0.028

 D_mean

14.65 ± 2.30

14.57 ± 2.43

0.07(−0.17, 0.32)

0.508

 V₅

62.10 ± 11.29

60.70 ± 10.80

1.40(−0.15, 2.96)

0.072

 V₁₀

41.97 ± 8.43

41.16 ± 8.64

0.82(− 0.21, 1.84)

0.105

 V₂₀

26.62 ± 5.38

26.78 ± 6.16

−0.16(− 0.91, 0.59)

0.636

 V₃₀

18.65 ± 3.96

18.84 ± 4.42

−0.19(− 0.69, 0.32)

0.427

 D_mean

0.87 ± 0.26

0.86 ± 0.25

0.01(−0.01, 0.02)

0.485

 V₅

0.01(0,1.12)

0.02(0,1.15)

−0.01(− 0.05,0.03)

0.605

 V₁₅

0

0

0

 D_mean

2.79 ± 1.11

2.83 ± 1.05

−0.04(−0.20, 0.12)

0.592

 D_max

17.06 ± 6.93

17.17 ± 7.21

−0.11(−1.09, 0.88)

0.815

 V₅

17.86 ± 12.33

18.36 ± 11.95

−0.50(−2.32,1.31)

0.546

 V₁₅

0.01(0,0.34)

0.01(0,0.26)

−0.06(− 0.24,0.11)

0.419

 D_mean

7.93 ± 2.55

7.90 ± 2.37

0.03(−0.23, 0.29)

0.787

 V₅

53.01 ± 17.55

53.22 ± 16.90

−0.21(−2.36,1.94)

0.831

 V₁₃

16.57 ± 8.27

16.36 ± 7.38

0.21(− 0.90,1.32)

0.675

 D_mean

1.89 ± 1.00

1.91 ± 1.03

−0.02(− 0.09, 0.05)

0.534

 D_2%

9.66(5.28,15.69)

9.74(5.66,15.55)

−0.02(− 0.37,0.34)

0.916

 V₅

8.02 ± 5.61

9.21 ± 6.44

−1.20(−3.64,1.25)

0.298

 D_max

18.91 ± 7.17

19.04 ± 7.54

−0.13(− 0.82,0.56)

0.685

 D_2%

15.04 ± 6.63

15.36 ± 6.56

−0.32(− 0.85,0.20)

0.194

 D_max

51.26(46.71,52.98)

51.47(47.40,52.91)

−0.12(− 0.91,0.67)

0.739

 V₅

29.65(26.91,38.75)

30.88(24.54,35.82)

0.64(−1.09,2.36)

0.428

 D_mean

38.19 ± 5.35

38.13 ± 5.13

0.06(−0.26,0.39)

0.681

 D_max

54.05 ± 0.64

54.41 ± 0.53

−0.35(− 0.94,0.23)

0.206

V₅

100

100

0

 D_max

49.57(34.50,51.60)

49.56(36.21,51.63)

−1.65(−5.35,2.04)

0.338

 V₅

79.41(46.83,100)

71.87(29.53,99.17)

6.94(1.74,12.14)

0.014