Object | Parameters | Standard | Modified (Actual) | |||||
Pre | Post | Change | Pre | Post | Change | |||
Case 1 | PTV | Volume (cc) | 15.1 | 13.9 | −7.9% | 15.1 | 13.9 | −7.9% |
D98/fr (Gy) | 3.39 | 3.43 | +1.2% | 3.30 | 3.41 | +3.3% | ||
D50/fr (Gy) | 4.03 | 4.04 | +0.2% | 4.00 | 4.00 | NC | ||
D2/fr (Gy) | 4.18 | 4.18 | NC | 4.13 | 4.13 | NC | ||
HI | 0.20 | 0.19 | −0.01 | 0.21 | 0.18 | −0.03 | ||
Optic apparatus | Dmax/fr (Gy) | 4.00 | 4.12 | +3.0% | 3.66 | 3.69 | +0.8% | |
D0.05cc/fr (Gy) | 3.82 | 3.96 | +3.7% | 3.37 | 3.59 | +6.5% | ||
D0.1cc/fr (Gy) | 3.68 | 3.88 | +5.4% | 3.24 | 3.50 | +8.0% | ||
Case 2 | PTV1 (Sphenoid) | Volume (cc) | 45.8 | 28.8 | −37.1% | 45.8 | 28.8 | −37.1% |
D98/fr (Gy) | 3.68 | 3.75 | +1.9% | 3.69 | 3.62 | −1.9% | ||
D50/fr (Gy) | 4.11 | 4.12 | +0.2% | 4.05 | 4.00 | −1.2% | ||
D2/fr (Gy) | 4.52 | 4.50 | −0.4% | 4.40 | 4.41 | +0.2% | ||
HI | 0.20 | 0.18 | −0.02 | 0.18 | 0.20 | +0.02 | ||
PTV2 (Subtemporal) | Volume (cc) | 7.3 | 3.7 | −49.3% | 7.3 | 3.7 | −49.3% | |
D98/fr (Gy) | 4.16 | 4.38 | +5.3% | 3.88 | 4.33 | +11.6% | ||
D50/fr (Gy) | 4.59 | 4.64 | +1.1% | 4.43 | 4.46 | +0.7% | ||
D2/fr (Gy) | 4.77 | 4.78 | +0.2% | 4.53 | 4.55 | +0.4% | ||
HI | 0.13 | 0.09 | −0.04 | 0.15 | 0.05 | −0.10 | ||
PTV3a (Clivus) | Volume (cc) | 19.7 | NE | NE | 19.7 | NE | NE | |
D98/fr (Gy) | 2.96 | NE | NE | 3.14 | NE | NE | ||
D50/fr (Gy) | 3.41 | NE | NE | 3.39 | NE | NE | ||
D2/fr (Gy) | 3.67 | NE | NE | 3.60 | NE | NE | ||
HI | 0.21 | NE | NE | 0.14 | NE | NE | ||
Optic nerve | Dmax/fr (Gy) | 3.88 | 4.10 | +5.7% | 3.7 | 4.00 | +8.1% | |
D0.05cc/fr (Gy) | 3.81 | 4.04 | +6.0% | 3.47 | 3.93 | +13.3% | ||
D0.1cc/fr (Gy) | 3.77 | 4.01 | +6.4% | 3.42 | 3.87 | +13.2% | ||
Retina | Dmax/fr (Gy) | 4.12 | 4.26 | +3.4% | 3.87 | 4.08 | +5.4% | |
D0.05cc/fr (Gy) | 3.86 | 4.16 | +7.8% | 3.60 | 3.96 | +10.0% | ||
D0.1cc/fr (Gy) | 3.69 | 4.07 | +10.3% | 3.47 | 3.87 | +11.5% |