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Table 2 The total EQD2 of organ at risks for different treatment technique

From: Impact of different treatment plans on EQD2 for intracavitary brachytherapy of cervical cancer

Parameters

IMRT+IO

IMRT+MO

3DCRT+IO

3DCRT+MO

p-value*

Rectum

D2cm3 (Gy)

65.70±9.29

72.37±5.32

71.08±9.46

77.75±6.21

0.001

D1cm3 (Gy)

65.96±4.54

75.32±4.80

71.53±4.93

81.89±5.65

0.000

D0.1cm3 (Gy)

76.51±6.78

88.38±5.97

82.35±6.70

84.22±6.12

0.000

Bladder

D2cm3 (Gy)

63.10±5.52

76.65±9.89

68.48±6.17

82.03±9.74

0.000

D1cm3 (Gy)

67.01±7.03

81.40±11.67

72.03±7.37

86.41±11.21

0.000

D0.1cm3 (Gy)

76.52±10.68

102.25±20.78

81.03±11.05

106.76±20.35

0.000

Small bowel

D2cm3 (Gy)

50.27±2.67

54.76±4.96

56.01±2.15

60.50±4.80

0.000

D1cm3 (Gy)

51.93±3.88

58.52±12.05

57.53±3.46

64.12±11.84

0.005

D0.1cm3 (Gy)

54.50±5.22

64.90±20.66

59.69±4.86

70.10±20.45

0.037

Sigmoid

D2cm3 (Gy)

48.52±2.86

53.00±3.27

54.14±3.69

58.62±4.12

0.000

D1cm3 (Gy)

50.19±3.90

55.37±4.12

55.49±4.75

60.67±5.00

0.000

D0.1cm3 (Gy)

53.56±6.78

59.01±6.13

58.02±7.22

63.47±6.90

0.002

  1. IMRT intensity-modulated radiation therapy, 3DCRT three-dimensional conformal radiation therapy, IO inverse optimization, MO manual optimization