Table 4 Dosimetric parameters of PTV and OARs for 10 cases of right breast cancer after breast-conserving surgery

 Coverage Index

97.78 ± 1.03

96.28 ± 1.44

1.50(0.59,2.41)

0.004

 D_mean

47.04 ± 0.25

46.98 ± 0.25

0.05(− 0.-3,0.13)

0.178

 HI

1.07 ± 0.01

1.07 ± 0.01

−0.001(− 0.0008,-0.01)

0.025

 CI

0.65 ± 0.09

0.65 ± 0.10

0(−0.20,0.15)

0.740

 Coverage Index

95.74 ± 1.96

95.29 ± 0.95

0.46(−0.68,1.59)

0.391

 D_mean

42.71 ± 0.66

42.79 ± 0.57

−0.09(− 0.23,0.05)

0.187

 HI

1.16 ± 0.03

1.17 ± 0.03

−0.01(− 0.03,0)

0.093

 CI

0.80 ± 0.06

0.82 ± 0.06

−0.02(− 0.03,0)

0.046

 D_mean

32.10 ± 1.72

28.85 ± 2.26

3.25(2.65, 3.86)

0.000

 V₅

95.80 ± 3.82

93.86 ± 4.73

1.94(0.78,3.10)

0.004

 V₁₀

91.56 ± 5.22

88.68 ± 5.80

2.88(1.71, 4.05)

0.000

 V₂₀

84.09 ± 6.66

79.23 ± 7.64

4.86(2.82, 6.89)

0.000

 V₃₀

73.03 ± 7.03

61.12 ± 8.05

11.91(10.09, 13.73)

0.000

 V₄₀

20.50 ± 7.73

9.99 ± 5.38

10.51(6.87,14.14)

0.000

 D_mean

7.97 ± 1.51

7.80 ± 1.45

−0.03(−0.20, 0.14)

0.718

 V₅

37.34 ± 5.29

37.16 ± 4.45

0.18(−0.99, 1.35)

0.740

 V₁₀

24.51 ± 4.53

24.46 ± 4.29

0.05(−0.73, 0.84)

0.881

 V₂₀

14.80 ± 3.97

15.20 ± 3.86

−0.40(− 0.81, 0.01)

0.056

 V₃₀

8.73 ± 3.65

8.82 ± 3.51

−0.08(− 0.46, 0.29)

0.629

 D_mean

0.41 ± 0.19

0.39 ± 0.18

0.02(−0.01 0.05)

0.130

 V₅

0

0

0.17(−0.11,0.45)

0.195

 V₁₅

0

0

0

 D_mean

1.16 ± 0.62

1.15 ± 0.63

0.01(−0.05, 0.06)

0.858

 D_max

7.79 ± 2.94

7.71 ± 2.83

0.09(−0.28, 0.45)

0.610

 V₅

0.23(0.01,2.05)

0.14(0.01,1.46)

0(−0.52,0.52)

0.988

 V₁₅

0

0

0

 D_mean

4.45 ± 2.84

4.36 ± 2.89

0.09(−0.11, 0.29)

0.349

 V₅

26.74 ± 18.92

27.34 ± 19.43

−0.59(−2.40,1.23)

0.487

 V₁₃

11.21 ± 10.36

11.20 ± 10.73

0.01(−0.84,0.85)

0.989

 D_mean

1.08 ± 0.77

1.02 ± 0.70

0.06(0, 0.12)

0.050

 D_2%

4.48(2.83,8.85)

3.21(2.70,8.52)

0.74(0.05,1.42)

0.038

 V₅

1.08(0.01,6.86)

0.72(0,5.74)

0.20(−0.10,0.49)

0.167

 D_max

0.43 ± 0.11

0.41 ± 0.12

0.02(0,0.04)

0.086

 D_2%

0.39 ± 0.11

0.37 ± 0.10

0.02(0.01,0.04)

0.014