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Table 1 Descriptive statistics of the data

From: Cardiac protective techniques in left breast radiotherapy: rapid selection criteria for routine clinical decision making

Factors

BCS Group (n = 56)

Mastectomy Group (n = 58)

Median

Minimum

Maximum

Median

Minimum

Maximum

Age

54

34

79

53

34

78

PTV volume (cc)

1104.0

417.7

2273.0

633.8

188.4

1239.0

PTV min (Gy)

33.3

9.5

50.4

36.0

13.67

50.4

PTV max (Gy)

62.5

51.6

69.0

55.7

51.5

65.3

PTV mean (Gy)

51.8

41.5

62.1

51.3

48.9

57.2

Left lung volume (cc)

1142.5

759.7

1564.3

1130.2

740.7

2241.0

Lung min (Gy)

0.5

0.1

2.7

0.3

0.1

3.4

Lung max (Gy)

54.7

47.3

66.4

53.9

49.8

66.6

Lung mean (Gy)

12.4

5.1

20.8

15.5

3.8

51.1

Lung V5 (%)

40.0

12.1

64.3

44.0

11.0

65.2

Lung V10 (%)

30.0

11.3

57.6

37.0

8.5

50.2

Lung V20 (%)

24.4

7.8

49.2

30

5.7

42.8

Heart volume (cc)

674.1

466.3

1064.0

614.3

441.1

848.1

Heart min (Gy)

0.8

0.3

45.0

0.4

0.1

40.0

Heart max (Gy)

51.3

12.5

58.5

51.4

5.5

54.6

Heart mean (Gy)

5.0

2.1

10.2

6.4

2.5

16.2

Heart V10 (%)

10.0

2.2

37.0

13.1

6.0

38.0

Heart V25 (%)

6.6

0.9

50.0

10.0

3.5

32.0

Heart V35 (%)

4.6

0.5

30.0

8.0

1.9

28.0

  1. BCS: Breast-conserving surgery, PTV: Planning target volume, n: number of patients, Gy: Gray, cc: cubic centimeter, max: maximum, min: minimum