Table 1. Comparison between iPlan-MIDCA and ABMP-SIDCA (Case 1).
Prescription: PTV D95%=95% dose (19 Gy), Leaf margin on iPlan-MIDCA: 1mm No leaf margin function in ABMP-SIDCA.
PTV=planned target volume (iPlan / ABMP), GTV=gross tumor volume, Vol.=volume (iPlan / ABMP)
Cbll=cerebellar, Temp=temporal, Pariet=parietal, Front=frontal, rt=right, lt=left, v.=vermis
CI=conformity index, GI=gradient index=V[half of prescription dose] / V[prescription dose]
| PTV (2mm margin) | No. of arcs | PTV Max.Dose(Gy) | GTV Min.Dose(Gy) | CI 1/Paddick’s CI | GI V[1/2PresD] / V[PresD] | |||||||
| Location | Vol.(ml) | iPlan | ABMP | iPlan | ABMP | iPlan | ABMP | iPlan | ABMP | iPlan | ABMP | |
| 1 | Cbll (rt) | 0.4 / 0.4 | 4 | 3 | 20.9 | 21.5 | 20.1 | 20.8 | 1.4 | 1.1 | 4.7 | 5.6 |
| 2 | Cbll (lt) | 0.2 / 0.3 | 4 | 4 | 20.9 | 22.1 | 20.0 | 21.3 | 1.6 | 1.2 | 5.1 | 5.1 |
| 3 | Cbll (lt) | 0.5 / 0.6 | 4 | 4 | 20.6 | 22.0 | 19.8 | 20.8 | 1.3 | 1.2 | 4.9 | 4.5 |
| 4 | Cbll (v.) | 0.2 / 0.2 | 4 | 4 | 20.9 | 22.2 | 20.1 | 21.4 | 1.6 | 1.2 | 6.0 | 5.4 |
| 5 | Cbll (v.) | 0.3 / 0.2 | 4 | 4 | 20.8 | 21.8 | 20.0 | 21.2 | 1.4 | 1.2 | 5.9 | 5.6 |
| 6 | Temp (rt) | 0.6 / 0.7 | 4 | 5 | 20.8 | 22.5 | 19.7 | 20.7 | 1.4 | 1.2 | 4.0 | 4.3 |
| 7 | Pariet (rt) | 0.7 / 0.5 | 4 | 3 | 21.6 | 21.9 | 19.7 | 20.9 | 1.5 | 1.1 | 3.4 | 5.1 |
| 8 | Front (lt) | 0.3 / 0.3 | 4 | 4 | 20.8 | 22.7 | 19.9 | 21.2 | 1.8 | 1.4 | 4.8 | 5.0 |
| 9 | Front (lt) | 0.3 / 0.3 | 4 | 3 | 22.0 | 23.0 | 20.1 | 21.3 | 1.8 | 2.9 | 4.8 | 5.4 |
| mean | 0.4 / 0.4 | 4 | 3.8 | 21.0 | 22.2 | 19.9 | 21.1 | 1.53 | 1.36 | 4.84 | 5.12 | |
| p=1 | p <0.001 | p <0.001 | p=0.39 | p=0.30 | ||||||||