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Table 5 Validation of BrainLAB imaging couch top (ICT) modeled in iPlan RT Dose treatment planning system (TPS); comparing measured dose with TPS computed dose

From: A validation of carbon fiber imaging couch top modeling in two radiation therapy treatment planning systems: Philips Pinnacle3 and BrainLAB iPlan RT Dose

(a) 10 cm × 10 cm field size

 

iPlan RT Dose predicted dose (cGy)

Percentage deviation from measured dose

Angle

Measured dose (cGy)

No ICT

With ICT

No ICT

With ICT

180

89.3

92.45

89.34

3.49

0.01

170

89.0

92.16

89.00

3.59

0.04

160

87.9

91.24

87.92

3.81

0.03

150

85.9

89.34

85.92

4.06

0.07

140

82.4

86.63

82.44

5.14

0.05

130

76.7

82.01

77.59

6.89

1.13

120

67.5

74.27

67.32

10.04

-0.26

110

58.0

63.17

58.55

8.89

0.92

100

64.5

65.42

65.43

1.40

1.42

(b) 5 cm × 5 cm field size

180

81.2

84.09

80.48

3.55

0.90

170

80.8

83.76

80.14

3.61

0.87

160

79.7

82.74

79.03

3.88

0.78

150

77.5

80.67

76.76

4.09

0.96

140

74.0

77.79

73.26

5.13

0.99

130

68.3

72.91

67.74

6.72

0.85

120

59.2

64.71

58.56

9.27

1.12

110

50.0

53.7

49.78

7.31

0.52

100

56.0

55.74

55.74

-0.55

0.55

  1. Note that the “measured dose (cGy)” is the dose measured as described in phantom dose measurement through the imaging couch top.