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Table 2 The summary of all investigated DVH-parameters as mean values ± standard deviation (SD)

From: Volumetric intensity-modulated Arc (RapidArc) therapy for primary hepatocellular carcinoma: comparison with intensity-modulated radiotherapy and 3-D conformal radiotherapy

  

3DCRT

IMRT

RA

CTV

V95% (%)

99.57 ± 0.39

99.65 ± 0.42

99.69 ± 0.42

PTV

V95% (%)

95.50 ± 2.41

95.27 ± 1.99

95.31 ± 1.64

 

V100% (%)

76.81 ± 5.95

77.88 ± 4.27

77.47 ± 2.64

 

V107% (%)

7.49 ± 7.92

3.71 ± 3.00

1.74 ± 2.82

 

CI

1.286 ± 0.11

1.19 ± 0.06

1.12 ± 0.05

 

HI

1.13 ± 0.05

1.13 ± 0.04

1.12 ± 0.03

Normal liver

Dmean (Gy)

21.58 ± 3.01

19.31 ± 2.89

21.97 ± 2.61

 

V40 Gy (%)

23.05 ± 4.06

18.61 ± 4.13

18.85 ± 3.97

 

V30 Gy (%)

32.10 ± 6.80

26.23 ± 5.87

27.77 ± 5.34

 

V20 Gy (%)

42.12 ± 7.56

37.16 ± 8.65

43.67 ± 8.18

 

V10 Gy (%)

60.55 ± 10.24

57.24 ± 10.02

75.77 ± 13.13

 

NTCP

7.57 ± 4.36

3.98 ± 3.00

4.38 ± 2.69

Stomach

Dmean (Gy)

23.16 ± 16.50

20.63 ± 15.26

23.42 ± 13.70

Left Kidney

Dmean (Gy)

11.37 ± 6.62

8.36 ± 4.60

7.69 ± 5.06

Right Kidney

Dmean (Gy)

14.99 ± 13.11

13.11 ± 11.42

11.84 ± 10.41

Spinal Cord

D1% (Gy)

38.94 ± 7.62

43.89 ± 2.01

38.51 ± 8.90

MU

 

322.33 ± 28.62

1165.44 ± 170.68

323.78 ± 60.65

  1. PTV: planned tumor volume; MU: monitor unit; 3DCRT: 3-D conformal radiation therapy; IMRT: intensity-modulated radiation therapy; RA: RapidArc.