Table 1 Patient and treatment planning characteristics of all patients

1

Meningioma

54

–

30

Brainstem

(90°,310°)

(120°,0°)^a

(70°,0°)^a

2

Rosette-forming glioneuronal tumor, relapse

54

–

30

Opt. L + R, Chiasm, Brainstem

(90°,350°)^a

(90°,190°)^a

(90°,270°)

3

Meningioma

54

–

30

Opt. L + R, Chiasm, Brainstem

(90°,350°)^a

(90°,320°)^a

(90°,180°)

4

Meningioma

54

–

30

Opt. L, Chiasm, Brainstem

(90°,0°)^a

(90°,320°)^a

(90°,270°)

5

Meningioma

54

–

30

Opt. L + R, Chiasm, Brainstem

(290°,0°)^a

(240°,0°)^a

(90°,0°)

6

Chondrosarcoma

69.3

54.45

33

Opt. L + R, Chiasm, Brainstem

(90°,190°)^a

(90°,350°)^a

(90°,250°)

7

Adenoidcystic carcinoma

70

63

35

Opt. L, Chiasm, Brainstem

(240°,10°)^a

(25°,0°)^a

(105°,0°)

8

Clivus chordoma

73.5

56

35

Opt. L + R, Chiasm, Brainstem

(60°,0°)^a

(120°,0°)^a

(270°,0°)^a

9

Chordoma

73.5

56

35

Opt. L + R, Chiasm, Brainstem

(100°,355°)^a

(55°,290°)^a

(240°,0°)

10

Clivus chordoma

73.5

56

35

Opt. L + R, Chiasm, Brainstem

(100°,0°)^a

(250°, 5°^)a

(60°,0°)^a