Table 3.

Summary of doses to critical organs from 40 delivered SRS VMAT treatment plans. The number of lesions per plan ranged from 2 to 8

Critical organ	Min	Max	Median
D mean (Gy)
Brain	0.9	4.1	1.9
Cochlea	0.1	11.2	1.1
D max (Gy)
Brainstem	0.4	24.9	3.5
Chiasm	0.2	7.9	1.6
Cord	0.1	3.1	1.4
Eye	0.1	6.6	0.7
Optic nerve	0.1	11.0	1.3
Lens	0.1	1.2	0.4