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Table 2 Summary of treatment parameters in the three centers

From: Factors affecting outcome in frameless non-isocentric stereotactic radiosurgery for trigeminal neuralgia: a multicentric cohort study

 

n

Mean (SD)

Median

Min

Max

Volume (mm3)

Center A

176

29.0 (14.3)

25.0

5.0

103.3

Center B

80

27.7 (12.3)

30.0

10.0

70.0

Center C

40

23.8 (12.8)

20.0

10.0

60.5

Overall

296

28.0 (13.7)

25.0

5.0

103.3

Prescription dose (Gy)

Center A

176

57.7 (6.7)

60.0

35.0

90.0

Center B

80

57.4 (2.6)

58.0

38.0

60.0

Center C

40

60.2 (4.1)

60.0

49.0

70.0

Overall

296

58.0 (5.6)

60.0

35.0

90.0

Isodose (%)

Center A

176

83.0 (3.2)

83.0

73.0

90.0

Center B

80

80.0 (0.4)

80.0

78.0

80.0

Center C

40

80.0 (3.2)

80.0

70.0

85.0

Overall

296

81.6 (3.1)

80.0

70.0

90.0

Dmax (Gy)

Center A

176

70.0 (8.1)

71.3

42.7

112.5

Center B

80

72.0 (3.3)

72.5

47.5

75.0

Center C

40

75.7 (4.0)

75.0

70.0

87.5

Overall

296

71.1 (7.0)

72.4

42.7

112.5

Dmean (Gy)

Center A

176

63.7 (7.3)

65.3

38.8

101.3

Center B

80

64.7 (2.9)

65.3

42.8

67.5

Center C

40

68.1 (3.8)

67.5

59.8

80.1

Overall

296

64.5 (6.2)

65.3

38.8

101.3

Integral dose (mJ)

Center A

176

2.0 (0.9)

1.6

0.3

6.7

Center B

80

1.8 (0.8)

1.9

0.6

4.4

Center C

40

1.6 (0.8)

1.4

0.7

4.0

Overall

296

1.8 (0.9)

1.6

0.3

6.7