Table 3.
Organ At Risk | Patients Above Dose Level | ||
---|---|---|---|
Mean Dose | Protons (%) | IMRT (%) | |
Lens (n=78) | > 2 Gy | 25 (32) | 64 (81) |
> 6 Gy | 16 (21) | 36 (46) | |
> 12 Gy | 10 (13) | 13 (17) | |
Hypothalamus (n=39) | > 5 Gy | 13 (33) | 27 (69) |
> 16 Gy | 6 (15) | 12 (30) | |
> 35 Gy | 1 (3) | 5 (15) | |
Pituitary (n=39) | > 20 Gy | 16 (41) | 21 (54) |
> 30 Gy | 15 (38) | 18 (46) | |
> 40 Gy | 10 (26) | 15 (38) | |
Testes (n=16) | Any Dose | 12 (75) | 16 (100) |
> 2 Gy | 4 (25) | 10 (63) | |
> 12 Gy | 0 (0) | 6 (38) | |
Ovaries (n=8) | Any Dose | 3 (38) | 8 (100) |
> 6 Gy | 2 (25) | 5 (63) | |
> 12 Gy | 1 (13) | 3 (38) | |
Lacrimal Gland (n=78) | > 20 Gy | 11 (14) | 21 (27) |
> 35 Gy | 3 (4) | 9 (12) | |
> 45 Gy | 3 (4) | 5 (6) | |
Growth Plates (n=24) | > 10 Gy | 8 (33) | 19 (79) |
> 20 Gy | 6 (25) | 8 (33) | |
> 30 Gy | 4 (17) | 6 (25) |