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Table 3 Details of the volume of ROIs and the cross failure rate with corresponding recurrence mode for all locally recurrent patients

From: Biological target volume based on fluorine-18-fluorode-oxyglucose positron emission tomography/computed tomography imaging: a spurious proposition?

No

Vpri (cm3)

Vhigh (cm3)

Vhigh /Vpri (%)

Vrecur (cm3)

Cross-failure rate of Vrecur∩pri (%)

Mode for Vrecur∩pri

Cross-failure rate of Vrecur∩high (%)

Mode for Vrecur∩high

1

10.5

5.57

53.05

4.35

51.49

Marginal

26.44

Marginal

2

4.42

2.75

62.22

20.35

8.5

Out-field

6.29

Out-side

3

14.53

5.7

39.23

1.02

87.84

Marginal

37.65

Marginal

4

12.48

4.22

33.81

18.24

40.68

Marginal

20.72

Marginal

5

4.16

0

0

1.02

81.37

Marginal

0

Out-side

6

25.15

5.18

20.6

17.15

47.76

Marginal

9.68

Out-side

7

105.09

43.07

40.98

59.39

82.98

Marginal

40.09

Marginal

8

13.12

3.01

22.94

1.15

60.87

Marginal

22.61

Marginal

9

73.22

28.67

39.16

47.81

71.74

Marginal

18.74

Out-side

10

60.86

22.27

36.59

4.8

42.67

Marginal

4

Out-side

11

5.63

1.98

35.17

10.24

43.16

Marginal

18.16

Out-side

12

22.85

15.04

65.82

24.58

40.11

Marginal

30.19

Marginal

13

76.54

15.3

19.99

59.46

64.26

Marginal

17.12

Out-side

14

29.95

13.06

43.61

44.54

43.69

Marginal

23.42

Marginal

15

9.54

1.67

17.51

28.22

30.62

Marginal

5.92

Out-side

16

4.8

2.05

42.71

0.51

62.75

Marginal

25.49

Marginal

17

42.3

3.26

7.71

3.97

98.24

In-field

22.67

Marginal

18

9.47

4.1

43.29

0.9

77.78

Marginal

49.78

Marginal

19

11.65

3.58

30.73

8.06

73.08

Marginal

36.48

Marginal

20

45.57

6.98

15.32

0.704

100

In-field

18.47

Out-side

21

35.9

6.46

17.99

15.42

97.15

In-field

32.36

Marginal

22

7.3

0

0

11.71

51.41

Marginal

0

Out-side

23

37.76

10.5

27.81

13.44

74.78

Marginal

19.49

Out-side

24

9.28

1.98

21.34

1.09

100

In-field

64.22

In-side

25

29.31

3.804

12.98

6.27

96.97

In-field

62.2

in-side

26

8.26

2.82

34.14

4.03

98.51

In-field

60.3

in-side

27

44.67

11.9

26.64

6.21

86.63

Marginal

1.03

out-side

28

33.86

11.33

33.46

48.06

52.33

Marginal

21.31

marginal

29

5.57

2.3

41.29

0.32

100

In-field

81.25

In-side

30

60.86

22.14

36.38

9.98

100

In-field

66.73

In-side

31

53.7

23.62

43.99

6.08

29.44

Marginal

0

Out-side

32

57.34

28.22

49.22

21.5

82.74

Marginal

53.3

In-side

33

19.39

10.94

56.42

27.78

47.01

Marginal

29.01

Marginal

  1. Vpri The primary tumor volume using the SUV thresholds of 2.5, Vhigh The volume of high FDG uptake using the SUV50%max isocontour, Vrecur The recurrent tumor volume using the SUV thresholds of 2.5