Table 5.
Doses (± SD) of various normal tissues with tumor depths of 6.5 cm and 2.5 cm and with 0-3 cm head-shifts.
| Organ | Baseline | LS1 | LS2 | LS3 | OS1 | OS2 | OS3 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gy-Eq | Gy-Eq (± SD) | Gy-Eq (± SD) | Gy-Eq (± SD) | Gy-Eq | Gy-Eq | Gy-Eq | |||||||||
| T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | T 6.5 cm | T 2.5 cm | ||
| NB | Dmean | 3.82 | 1.64 | 3.78 (0.03) |
1.62 (0.01) |
3.63 (0.04) |
1.56 (0.02) |
3.42 (0.05) |
1.46 (0.02) |
3.64 | 1.56 | 3.47 | 1.49 | 3.30 | 1.41 |
| Dmax | 12.26 | 5.25 | 11.99 (0.16) |
5.14 (0.07) |
11.70 (0.31) |
5.01 (0.13) |
11.50 (0.24) |
4.93 (0.10) |
11.63 | 4.98 | 11.17 | 4.78 | 10.72 | 4.59 | |
| CW | Dmean | 1.83 | 0.78 | 1.79 (0.08) |
0.77 (0.04) |
1.73 (0.20) |
0.74 (0.09) |
1.63 (0.26) |
0.70 (0.11) |
1.80 | 0.77 | 1.73 | 0.74 | 1.62 | 0.70 |
| L-ON | Dmean | 0.85 | 0.36 | 0.81 (0.12) |
0.35 (0.05) |
0.83 (0.15) |
0.36 (0.06) |
0.84 (0.19) |
0.36 (0.08) |
0.82 | 0.35 | 0.76 | 0.33 | 0.68 | 0.29 |
| R-ON | Dmean | 0.92 | 0.39 | 0.83 (0.07) |
0.36 (0.03) |
0.79 (0.14) |
0.34 (0.06) |
0.79 (0.24) |
0.34 (0.10) |
0.82 | 0.35 | 0.79 | 0.34 | 0.73 | 0.31 |
| L-lens | Dmean | 0.29 | 0.12 | 0.29 (0.03) |
0.12 (0.01) |
0.30 (0.05) |
0.13 (0.02) |
0.29 (0.07) |
0.12 (0.03) |
0.32 | 0.14 | 0.24 | 0.10 | 0.21 | 0.09 |
| R-lens | Dmean | 0.32 | 0.14 | 0.30 (0.03) |
0.13 (0.01) |
0.33 (0.10) |
0.14 (0.04) |
0.29 (0.10) |
0.13 (0.04) |
0.32 | 0.14 | 0.22 | 0.09 | 0.22 | 0.09 |
| L-eye | Dmean | 0.37 | 0.16 | 0.36 (0.04) |
0.15 (0.02) |
0.38 (0.07) |
0.16 (0.03) |
0.37 (0.09) |
0.16 (0.04) |
0.35 | 0.15 | 0.32 | 0.14 | 0.29 | 0.13 |
| R-eye | Dmean | 0.39 | 0.16 | 0.39 (0.04) |
0.16 (0.02) |
0.36 (0.08) |
0.15 (0.03) |
0.35 (0.13) |
0.15 (0.05) |
0.34 | 0.15 | 0.30 | 0.13 | 0.28 | 0.12 |
| BS | Dmean | 4.04 | 1.73 | 3.86 (0.33) |
1.65 (0.14) |
3.74 (0.62) |
1.60 (0.27) |
3.53 (0.87) |
1.51 (0.37) |
3.75 | 1.61 | 3.53 | 1.51 | 3.36 | 1.44 |
∗Gy-Eq is the unit of the values reported. NB: normal brain; CW: Circle of Willis; L: left; R: right; ON: optic nerve; BS: brain stem. D: dose; LS1: 1 cm lateral shift; LS2: 2 cm lateral shift; LS3: 3 cm lateral shift; OS1: 1 cm outward shift; OS2: 2 cm outward shift; OS3: 3 cm outward shift. The mean doses reported for LS1, LS2, and LS3 represent the mean values of the doses for left/right and superior/inferior shifts.