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Table 3 Results from dose plan analysis for Patient 2

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

  Obj. HT IMP RA
PTVII
Mean [Gy] 49.5 49.5
(100%)
49.5
(100%)
49.5
(100%)
D1% [%] - 103.2 103.8 103.4
D99% [%] - 93.3 94.7 92.7
V90% [%] 100% 99.9 100.0 99.8
V95% [%] 100% 97.5 98.7 96.2
V107% [%] 0% 0.0 0.0 0.0
V110% [%] 0% 0.0 0.0 0.0
D5–D95 [%] - 6.5 5.9 7.3
SD [%] - 1.8 1.8 2.2
CI90 1.0 1.1 1.1 1.0
PTVI-PTVII
Mean [%] 45.0 47.0
(104.4%)
47.6
(105.8%)
46.7
(103.8%)
D1% [%] - 112.9 113.1 111.3
D99% [%] - 92.9 95.3 91.1
V90% [%] 100% 99.7 99.9 99.3
V95% [%] 100% 98.1 99.2 95.4
V107% [%] 0% 31.2 45.6 28.3
V110% [%] 0% 11.6 6.7 6.3
D5–D95 [%] - 13.8 11.6 15.1
SD [%] - 4.4 3.6 4.7
Vertebra
Mean [Gy] < 20 Gy 10.5 4.3 10.5
D1% [Gy] < 45 Gy 25.8 37.2 34.8
Spinal Cord
D1% [Gy] < 45 Gy 11.0 1.4 10.1
Right Lung
Mean [Gy] < 15 Gy 9.1 3.6 7.7
V5 Gy [%] Minim 47.7 16.5 43.7
V20 Gy [%] Minim 14.8 6.9 13.6
Left Lung
Mean [Gy] < 15 Gy 13.2 7.0 12.0
V5 Gy [%] Minim 63.7 30.9 54.0
V20 Gy [%] Minim 27.0 14.0 26.4
Heart
Mean [Gy] < 30 Gy 6.5 2.4 2.3
V20 Gy [%] Minim 13.2 5.0 2.7
D1% [Gy] Minim 42.1 38.0 31.1
Healthy tissue
Mean Gy] Minim 5.0 1.7 4.0
V10 Gy [cm3] Minim 18.9 5.4 8.9
EI [%] Minim 0.0 0.1 0.0
DosInt [105 *Gy*cm3] Minim 0.29 0.10 0.23