Table 3.

Dose distribution and conformity on PTV2, resembling a target volume for a temporopolar glioblastoma

PTV2	Optimized Plan	Re-Calculation on Position A	Re-Calculation on Position B
PTV
Dmax	63.8 Gy	63.8 Gy	63.3 Gy
D2%	62.4 Gy	62.1 Gy	61.9 Gy
Dmean	59.6 Gy	59.1 Gy	59.0 Gy
D50%	60.0 Gy	59.5 Gy	59.4 Gy
D98%	53.5 Gy	52.9 Gy	53.1 Gy
Dmin	45.4 Gy	42.4 Gy	45.9 Gy
Conformity (V95%/PTV)	0.89	0.86	0.86
Homogenity ((D2%-D98%)/D50%)	0.15	0.15	0.15
Chiasm
Dmax	54.5 Gy	53.5 Gy	53.3 Gy
D2%	52.7 Gy	52.3 Gy	52.4 Gy
Dmean	48.0 Gy	48.0 Gy	47.6 Gy
V54Gy	< 0.01 cm3	0 cm3	0 cm3
V50Gy	0.29 cm3	0.27 cm3	0.24 cm3
Left Optical Nerve
Dmax	55.5 Gy	55.7 Gy	55.4 Gy
D2%	54.7 Gy	54.7 Gy	54.6 Gy
Dmean	42.3 Gy	43.3 Gy	41.7 Gy
V54Gy	0.02 cm3	0.02 cm3	0.02 cm3
V50Gy	0.11 cm3	0.12 cm3	0.13 cm3
Right Optical Nerve
Dmax	42.6 Gy	42.7 Gy	43.0 Gy
D2%	39.3 Gy	40.4 Gy	39.9 Gy
Dmean	28.6 Gy	28.5 Gy	27.4 Gy
V54Gy	0 cm3	0 cm3	0 cm3
V50Gy	0 cm3	0 cm3	0 cm3
Brainstem
Dmax	55.5 Gy	55.7 Gy	55.1 Gy
D2%	52.7 Gy	52.6 Gy	52.2 Gy
Dmean	33.9 Gy	34.3 Gy	33.7 Gy
V54Gy	0.09 cm3	0.10 cm3	0.02 cm3
V50Gy	2.82 cm3	2.78 cm3	2.48 cm3