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Table 2 Dose distribution and conformity on PTV1, resembling a target volume for a parietal glioblastoma

From: Dosimetric impact of tumor treating field (TTField) transducer arrays onto treatment plans for glioblastomas – a planning study

PTV1 Optimized Plan Re-Calculation on Position A Re-Calculation on Position B
PTV
 Dmax 64.6 Gy 64.2 Gy 63.7 Gy
 D2% 61.7 Gy 61.0 Gy 60.8 Gy
 Dmean 59.7 Gy 58.9 Gy 58.7 Gy
 D50% 59.9 Gy 59.1 Gy 58.8 Gy
 D98% 56.2 Gy 55.6 Gy 55.3 Gy
 Dmin 50.2 Gy 45.8 Gy 47.2 Gy
 Conformity (V95%/PTV) 0.93 0.89 0.87
 Homogenity ((D2%-D98%)/D50%) 0.09 0.09 0.09
Chiasm
 Dmax 25.7 Gy 19.8 Gy 20.7 Gy
 D2% 18.4 Gy 15.6 Gy 16.3 Gy
 Dmean 7.4 Gy 7.4 Gy 7.7 Gy
 V54Gy 0 cm3 0 cm3 0 cm3
 V50Gy 0 cm3 0 cm3 0 cm3
Left Optical Nerve
 Dmax 3.4 Gy 3.8 Gy 3.8 Gy
 D2% 3.2 Gy 3.5 Gy 3.6 Gy
 Dmean 2.3 Gy 2.4 Gy 2.4 Gy
 V54Gy 0 cm3 0 cm3 0 cm3
 V50Gy 0 cm3 0 cm3 0 cm3
Right Optical Nerve
 Dmax 3.6 Gy 3,9 Gy 3.9 Gy
 D2% 3.5 Gy 3.6 Gy 3.7 Gy
 Dmean 2.7 Gy 2.7 Gy 2.7 Gy
 V54Gy 0 cm3 0 cm3 0 cm3
 V50Gy 0 cm3 0 cm3 0 cm2
Brainstem
 Dmax 11.0 Gy 10.7 Gy 11.2 Gy
 D2% 7.5 Gy 7.5 Gy 7.7 Gy
 Dmean 2.7 Gy 2.7 Gy 2.7 Gy
 V54Gy 0 cm3 0 cm3 0 cm3
 V50Gy 0 cm3 0 cm3 0 cm3