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Table 8 Mean dose and EUD for PTV's and OAR's in IMRT versus 3D-CRT

From: Integrated-boost IMRT or 3-D-CRT using FET-PET based auto-contoured target volume delineation for glioblastoma multiforme - a dosimetric comparison

 

Mean Dose

EUD

 

IMRT

3D-CRT

p

IMRT

3D-CRT

p

 

mean

SD

mean

SD

 

mean

SD

mean

SD

 

PTV 1

68.76

± 1.88

64.40

± 2.79

0.61

68.34

± 1.93

67.29

± 2.85

0.2

PTV 2

60.68

± 0.63

61.00

± 0.78

0.03

59.92

± 0.95

55.30

± 4.33

<0.01

Brain

25.57

± 3.24

22.90

± 4.31

<0.01

41.57

± 2.16

41.73

± 3.12

0.69

Brainstem

13.76

± 8.74

13.37

± 9.25

0.79

21.83

± 11.91

22.49

± 12.94

0.48

Chiasm

18.51

± 12.56

15.83

± 13.33

0.14

19.64

± 13.2

16.95

± 13.71

0.12

Optic nerve rt.

8.48

± 6.49

7.57

± 8.66

0.64

10.2

± 7.76

8.81

± 9.49

0.41

Optic nerve lt.

13.02

± 16.94

13.50

± 14.33

0.79

14.07

± 12.74

14.57

± 14.65

0.78