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Table 1 Patient and treatment related parameters, HI = homogeneity index, HT-P = hypothalamus-pituitary area, CN = conformation number, SIB: simultaneous integrated boost, n.a. =not applicable; m = male, f = female

From: Sparing the hippocampus and the hypothalamic- pituitary region during whole brain radiotherapy: a volumetric modulated arc therapy planning study

 

PTV volume [cm3]

Hippocampal volume [cm3]

Hippocampal HT-P- + 5 mm volumes VPRV [cm3]

Number of metastases

Metastases volumes [cm3]

% SIB of PTV

D95 (%)

Hippocampal HT-P- + 5 mm mean dose DPRV [Gy]

HI

CN

1

1748.1

12.6

58.9

n.a.

n.a.

 

96.4

12.8

0.09

0.85

2

2048.5

12.6

58.0

n.a.

n.a.

 

95.9

14.1

0.17

0.86

3

2140.7

6.1

43.9

n.a.

n.a.

 

95.5

14.6

0.12

0.86

4

2083.5

10.7

65.6

n.a.

n.a.

 

96.4

14.2

0.09

0.86

5

1974.4

4.5

43.2

n.a.

n.a.

 

95.3

14.9

0.12

0.86

6

1797.2

4.7

59.6

n.a.

n.a.

 

95.3

14.9

0.11

0.84

7

1805.3

8.1

51.4

n.a.

n.a.

 

96.7

15

0.08

0.86

8

1521.4

10.4

58.8

n.a.

n.a.

 

96.4

14.9

0.09

0.82

9

1991.4

6.7

45.9

n.a.

n.a.

 

96.4

15

0.09

0.87

10

1593.9

7.4

47.9

2

5.2

0.33

98.1

15.1

0.11

0.84

11

1924.7

22.4

51.2

1

9.4

0.49

98.1

15

0.13

0.85

12

1761.8

2.7

38.9

2

7.1

0.40

98.0

14.1

0.14

0.84

13

1436.4

4.0

39.6

1

15.9

1.11

97.8

14.9

0.19

0.81

14

1860.0

4.7

44.1

1

4.1

0.22

98.0

13.2

0.16

0.86

15

1802.7

6.0

42.2

9

31.7

1.76

97.6

14

0.214

0.79

16

2286.7

10.1

65.8

3

73.0

3.19

97.3

14.2

0.16

0.79

17

1641.1

8.8

53.6

1

6.5

0.40

98.3

13.6

0.17

0.85

18

2029.0

9.6

59.4

1

105.0

5.17

97.5

15.4

0.15

0.72

19

1941.3

2.5

34.3

4

20.6

1.06

97.6

14.8

0.23

0.82

20

1781.4

5.8

41.5

2

19.8

1.11

97.6

15

0.13

0.82