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Table 7 Patient treated with postoperative RT; recurrence volume size, recurrence site and overlap volume size, epicenter dose and distance between epicenter in GTVr and GTVp

From: Patterns of local-regional recurrence after conformal and intensity-modulated radiotherapy for head and neck cancer

Case No.

Recurrence volume (ccm)

In-field

Marginal

Out-of- field

Overlap size (ccm)

Epicenter dose (Gy) and distance (cm)

11

88.9

X

  

0.0/0.0

44/49.2, 6.6

12

24.2

 

X

 

1.5

48.8/61.5, 5.5

13

76.6

  

X

0.0

0.7/50.8, 12.0

14

18.0

X

  

0.0

66.4/65.2, 2.8

15

5.8

X

  

2.6

65.5/69.0, 2.9

16

86.6

X

  

37.7

64.3/61.7, 4.9

17

20.1

 

X

 

0.0/0.0

44.0/59.9, 8.8

18

5.2

X

  

0.0

63.0/58.6, 4.9

19

2.1

X

  

0.0

62.9/62.7, 5.2

20

18.2

X

  

0.0

45.3/50.4, 9.2

21

59.5

X

  

32.6

45.8/57.8, 9.3

22

13.5

X

  

9.5

65.2/69.7, 1.2

23

119.3

  

X

0.0

1.6/49.8, 13.7

24

27.2

X

  

4.3

52.7/52.7, 2.8

25

59.0

  

X

0.0

6.9/59.6, 6.7

26

27.1

X

  

1.3

46.4/49.7, 4.1