Skip to main content

Table 3 Dosimetric results for GTV and PTV

From: RapidArc, intensity modulated photon and proton techniques for recurrent prostate cancer in previously irradiated patients: a treatment planning comparison study

Parameter

IMRT

IMPT

RA_HD120

RA_M120

p

GTV Volume [cm3] 6.7 ± 6.8 [0.6-19.9]

Mean [Gy]

58.9 ± 2.2

56.5 ± 1.0

57.2 ± 0.6

57.3 ± 0.8

e

D5-D95 [Gy]

12.4 ± 6.9

12.5 ± 6.0

8.5 ± 5.3

10.2 ± 5.3

a,b,c,d,e,f

D2 [Gy]

64.6 ± 1.2

61.9 ± 2.7

60.7 ± 2.0

61.5 ± 1.6

a,b,c,d

D98 [Gy]

49.3 ± 7.7

46.6 ± 6.9

49.2 ± 6.6

48.2 ± 6.3

d,e,f

V95 [%]

88.6 ± 10.8

88.9 ± 10.5

92.6 ± 7.9

91.4 ± 8.5

d,e,f

V107 [%]

52.3 ± 27.8

21.1 ± 14.9

9.1 ± 12.1

19.3 ± 14.2

b,f

PTV Volume [cm3] 27.7 ± 19.6 [6.7-64.2]

Mean [Gy]

56.0 ± 0.0

56.0 ± 0.0

56.0 ± 0.0

56.0 ± 0.0

 

D5-D95 [Gy]

15.0 ± 2.0

13.6 ± 4.3

11.8 ± 2.7

13.2 ± 3.2

a,b,c,d,f

D2 [Gy]

63.6 ± 0.9

61.4 ± 1.6

60.7 ± 1.5

61.5 ± 1.3

a,b,c,d,f

D5 [Gy]

62.3 ± 0.9

60.7 ± 1.4

60.0 ± 1.2

60.7 ± 1.2

a,b,c,d,f

D98 [Gy]

43.8 ± 2.8

42.4 ± 5.4

44.1 ± 4.0

43.5 ± 4.5

d,e,f

V95 [%]

77.2 ± 2.2

85.6 ± 5.0

83.7 ± 3.3

81.8 ± 4.2

a,b,e,f

V107 [%]

18.2 ± 2.6

12.6 ± 8.5

6.9 ± 6.4

12.5 ± 8.6

b,d,f

  1. a = IMRT vs IMPT b = IMRT vs RA_HD120 c = IMRT vs RA_M120
  2. d = IMPT vs RA_HD120 e = IMPT vs RA_M120 f = RA_HD120 vs RA_M120