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Table 2 Organ dose-volume metrics and dose parameters for the different RT plans and for each PTV i

From: Hodgkin’s lymphoma emerging radiation treatment techniques: trade-offs between late radio-induced toxicities and secondary malignant neoplasms

  

AP-PA

FIMRT

IMRT

TOMO

PRO

PTV 1

      

 Heart

V25

22.5*

21.0*

11.8*

4.5

3.6

 Left Atrium

V25

42.2

39.2

35.0

25.8

24.5

 Left ventricle

V30

0.1

0.1

0.1

0.1

0.1

 Right Ventricle

V30

7.6

2.4

0.1

0.1

0.1

 Pericardium

V30

6.2

2.5

3.9

3.0

2.1

 

mean dose

10.0

9.2

6.4

7.7

4.3

 Thyroid

V30

49.0

48

41.4

16.9

28.5

 Lungs

V20

12.1

11

15

10.1

8.2

 

mean dose

5.3

4.9

7.8

8.1

3.3

PTV 2

      

 Heart

V25

27.7*

29.9*

12.3*

5.0

6.7

 Left Atrium

V25

41.8

45.0

41.5

27.2

30.4

 Left ventricle

V30

9.2

7.5

0

0.1

0.3

 Right Ventricle

V30

9.7

6.5

0

0

0

 Pericardium

V30

14.9

11.5

9.2

5.5

2.9

 

mean dose

11.8

12.5

10.7

7.8

7.5

 Thyroid

V30

49.3

42.1

27.8

16

18.6

 Lungs

V20

24.7

23.6

20.5

16.5

14.4

 

mean dose

9.6

9.2

10.5

9.7

6.4

PTV 3

      

 Heart

V25

60.5*

67.5*

22.0*

8.7

7.3

 Left Atrium

V25

98.3*

99.3*

73.0*

49.4

43.0

 Left ventricle

V30

12.0

13.0

2.5

0.1

0

 Right Ventricle

V30

49.2

47.0

0

0

0

 Pericardium

V30

31.3

42.0

20.6

13.0

3.2

 

mean dose

22.0

23.8

17.2

14.6

10.2

 Thyroid

V30

93.9*

24.0

60

45.0

7.0

 Lungs

V20

30.7

28.8

27.0

23.0

14.5

 

mean dose

11.9

11.1

13.5*

12.6

6.5

  1. * not compliant with constraint.
  2. VX is the percentage of organ volume exceeding X Gy.