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Table 2 Treatment and cranial lesion characteristics: 65 lesions

From: Stereotactic radiosurgery for post operative brain metastasic surgical cavities: a single institution experience

 

N

%

Median

Min – Max

Previous WBRT

    

 Yes

3

4.7

  

 No

61

95.3

  

Previous radiosurgery

    

 Yes

4

6.2

  

 No

60

93.8

  

Lesion size (preoperative)

  

24

[7–70]

  < 30 mm

32

76.2

  

  ≥ 30 mm

11

23.8

  

 Missing

22

   

Location

    

 Supratentorial

40

60.9

  

 Subtentorial

25

39.1

  

Surgical technique

    

 En bloc

6

11.3

  

 Piecemeal

47

88.7

  

 Missing

12

   

Resection quality

    

 Complete

65

100

  

Postoperative PS

    

 0

14

26.4

  

 1

37

69.8

  

Time between Surgery-GK

  

35

[6–181]

(days)

    

Treated volume lesion 1 (cc)

  

5.6

[0.8–40]

Treated volume lesion 2 (cc)

  

11.4

11.4

Dose (Gy)

  

20

[16–26]

 16

4

6.4

  

 18

18

28.6

  

 20

23

36.5

  

 22

7

11

  

 24

2

3.2

  

 26

1

1.6

  

Autres (19–21-23)

8

12.7

  

Prescribed isodose (%)

  

50

[40–55]

Number of existing lesions treated (at time of GK treatment)

  

1

[0–11]

Contention frame

64

100

 Â