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Table 3 Global results from total dose plan analysis. For each patient and parameter the average over all the planning systems is shown, uncertainties are reported at 1 standard deviation.

From: On the performances of different IMRT treatment planning systems for selected paediatric cases

  

Objectives

Patient 1

Patient 2

Patient 3

Patient 4

PTV1

Prescription

-

44.8

45.0

45.0

18.0

 

D1% Gy

Prescript

50.4 ± 0.8

48.1 ± 1.5

50.2 ± 1.2

20.5 ± 0.9

 

D99% Gy

Prescript

35.3 ± 2.2

40.5 ± 1.8

38.7 ± 1.3

14.4 ± 1.5

 

V90% %

100%

93.6 ± 2.6

98.4 ± 1.6

96.3 ± 2.5

96.7 ± 2.3

 

V107% %

0%

10.8 ± 5.4

2.7 ± 4.4

8.6 ± 4.9

9.4 ± 6.3

 

SD Gy

0 Gy

3.0 ± 0.5

1.5 ± 0.7

2.4 ± 0.5

1.1 ± 0.3

 

CI

1.0

1.14 ± 0.08

1.28 ± 0.10

1.58 ± 0.26

1.26 ± 0.14

PTV2

Prescription

-

9.6

5.4

5.4

-

 

D1% Gy

Prescript

11.4 ± 1.5

6.1 ± 0.6

6.6 ± 1.4

-

 

D99% Gy

Prescript

6.1 ± 2.5

4.3 ± 0.7

3.9 ± 1.6

-

 

V90% %

100%

88.4 ± 10.9

91.8 ± 10.8

89.6 ± 16.9

-

 

V107% %

0%

18.6 ± 18.5

14.2 ± 16.5

14.6 ± 19.7

-

 

SD Gy

0 Gy

1.1 ± 1.0

0.4 ± 0.3

0.6 ± 0.7

-

 

CI

1.0

1.07 ± 0.15

1.37 ± 0.16

1.33 ± 0.13

-

PTV2 (total)

Prescription

-

54.4

50.4

50.4

-

 

Mean Gy

Prescript.

54.1 ± 0.5

50.6 ± 0.2

50.2 ± 0.1

-

 

Max pt Gy

Prescript

63.5 ± 2.7

54.2 ± 2.0

57.3 ± 2.1

-

 

D1% Gy

Prescript

60.3 ± 1.3

53.1 ± 1.3

55.7 ± 1.6

-

 

D99% Gy

Prescript

42.7 ± 1.4

46.8 ± 1.4

43.1 ± 1.3

-

 

V90% %

100%

91.3 ± 4.5

99.6 ± 0.6

95.4 ± 2.3

-

 

V107% %

0%

10.3 ± 7.6

1.4 ± 3.2

7.1 ± 3.9

-

Vertebra

Mean Gy

<20 Gy

22.8 ± 2.5

18.0 ± 1.8

-

-

Spinal Cord

Max pt Gy

<45 Gy

33.3 ± 7.2

25.1 ± 4.7

-

-

 

D1% Gy

Minimise

29.0 ± 7.8

23.1 ± 3.9

-

-

Right Lung

Mean Gy

< 15 Gy

10.8 ± 1.3

9.6 ± 1.5

-

-

 

V20 Gy %

Minimise

7.6 ± 4.4

18.8 ± 4.1

-

-

Left (uninv.) Lung

Mean Gy

< 15 Gy

18.5 ± 2.2

12.6 ± 1.5

-

-

 

V20 Gy %

Minimise

38.3 ± 8.1

27.9 ± 6.0

-

-

Heart

Mean Gy

<30 Gy

27.4 ± 2.6

3.9 ± 0.9

-

-

 

Max pt Gy

Minimise

55.1 ± 2.4

43.2 ± 6.9

-

-

 

D1% Gy

Minimise

51.4 ± 3.6

39.8 ± 7.8

-

-

Uterus

Mean Gy

<20 Gy

-

-

18.9 ± 1.8

-

 

V20 Gy %

Minimise

-

-

26.2 ± 20.6

-

Rectum

Mean Gy

<40 Gy

-

-

23.6 ± 3.1

-

 

V40 Gy %

Minimise

-

-

15.3 ± 7.7

-

Bladder

Mean Gy

<30 Gy

-

-

24.4 ± 3.6

-

 

V30 Gy %

Minimise

-

-

16.9 ± 15.8

-

Right Femur

Mean Gy

<20 Gy

-

-

19.2 ± 3.2

-

 

Max pt Gy

Minimise

-

-

40.7 ± 3.6

-

Left Femur

Mean Gy

<20 Gy

-

-

18.7 ± 2.6

-

 

Max pt Gy

Minimise

-

-

38.4 ± 4.0

-

Kidney

Mean Gy

<10 Gy

-

-

-

7.9 ± 1.6

 

Max pt Gy

Minimise

-

-

-

15.0 ± 2.3

 

D1% Gy

Minimise

-

-

-

13.7 ± 2.0

 

V5 Gy %

Minimise

-

-

-

83.6 ± 20.3

Healthy tissue

Mean Gy

Minimise

8.2 ± 0.7

4.6 ± 0.7

13.7 ± 1.7

7.5 ± 0.8

 

Max pt Gy

Minimise

61.6 ± 5.3

52.2 ± 2.2

57.0 ± 3.8

20.8 ± 1.7

 

V10 Gy cm3

Minimise

2700 ± 300

1060 ± 170

3620 ± 240

1450 ± 300

 

nV10 Gy

Minimise

4.8 ± 0.6

9.5 ± 1.7

5.8 ± 0.4

1.2 ± 0.3

 

V90% cm3

Minimise

74 ± 30

24 ± 8

189 ± 120

334 ± 122