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Table 4 Results from dose plan analysis for Patient 3

From: On the performances of Intensity Modulated Protons, RapidArc and Helical Tomotherapy for selected paediatric cases

  Obj. HT IMP RA
PTVII
Mean [Gy] 42.5 42.5
(100%)
42.5
(100%)
42.5
(100%)
D1% [%] - 102.4 106.1 103.5
D99% [%] - 94.8 83.8 94.1
V90% [%] 100% 100.0 97.9 100.0
V95% [%] 100% 98.9 95.6 100.0
V107% [%] 0% 0.0 0.5 0.
V110% [%] 0% 0. 0. 0.
D5–D95 [%] - 4.0 8.2 6.1
SD [%] - 1.2 3.8 1.9
CI90 1.0 1.0 1.0 1.2
PTVI-PTVII
Mean [Gy] 30.6 31.3
(102.3%)
31.3
(102.3%)
31.5
(102.9%)
D1% [%] - 126.5 122.4 130.4
D99% [%] - 89.9 95.8 94.8
V90% [%] 100% 98.9 99.6 100.
V95% [%] 100% 96.7 99.2 100.
V107% [%] 0% 9.7 6.6 8.3
V110% [%] 0% 5.4 2.9 5.2
D5–D95 [%] - 13.4 9.5 14.0
SD [%] - 5.2 4.6 5.6
Spinal Cord
D1% [Gy] < 45 Gy 31.8 29.4 32.3
Right Eye
Mean [Gy] < 15 Gy 15.3 12.2 12.3
V20 Gy [%] Minim 29.2 24.3 15.3
D1% [Gy] Minim 36.8 34.6 30.5
Right Lens
Mean [Gy] < 15 Gy 11.8 1.9 7.9
D1% [Gy] Minim 18.4 2.7 10.2
Healthy tissue
Mean Gy] Minim 17.3 14.2 15.7
V10 Gy [cm3] Minim 74.3 56.9 62.7
EI [%] Minim 0.1 0.1 0.0
DosInt [105 *Gy*cm3] Minim 0.25 0.20 0.23