Table 2 Interfractional position variation and intrafractional motion results in cranial-caudal (CC) direction
Age (years) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.4–17.9 | ≥ 5.5–17.9a | < 5.5 with GAa | < 5.5 without GAa | ||||||||||
Interfractional position variation | |||||||||||||
Npatients | 189 | 114 | 40 | 35 | |||||||||
(mm) | M [range] | Σ | σ | M [range] | Σ | σ | M [range] | Σ | σ | M [range] | Σ | σ | |
Left hemidiaphragm | 0.6 [-13.0–15.1] | 4.6 | 3.2 | 0.9 [-9.1–15.1] | 4.6 | 3.4 | -1.0 [-13.0–6.3] | 3.8 | 2.8 | 1.8 [-7.5–14.7] | 4.8 | 3.4 | |
Right hemidiaphragm | 0.8 [-11.0–17.5] | 5.0 | 3.4 | 0.8 [-11.0–17.5] | 5.0 | 3.6 | -0.8 [-11.4–11.0] | 4.3 | 3.0 | 2.7 [-7.8–15.6] | 5.4 | 3.3 | |
Spleen | 0.2 [-13.9–12.8] | 4.6 | 3.4 | 0.6 [-13.9–12.8] | 5.4 | 3.7 | -1.2 [-8.2–5.1] | 3.3 | 2.8 | 1.1 [-6.7–11.7] | 3.7 | 3.4 | |
Liver | 0.7 [-11.9–11.1] | 4.4 | 3.3 | 0.7 [-11.9–11.1] | 4.5 | 3.5 | -0.7 [-9.2–7.4] | 3.8 | 2.9 | 2.1 [-5.2–10.4] | 4.3 | 3.2 | |
Left kidney | 0.7 [-10.3–9.0] | 3.4 | 2.5 | 1.0 [-10.3–9.0] | 3.4 | 2.3 | -0.2 [-6.6–8.8] | 3.3 | 2.7 | 0.8 [-7.8–6.8] | 3.4 | 3.0 | |
Right kidney | 0.5 [-10.2–9.1] | 3.0 | 2.7 | 0.7 [-10.2–5.9] | 2.9 | 2.7 | -0.4 [-5.1–6.8] | 2.8 | 2.3 | 1.1 [-3.5–9.1] | 3.3 | 3.3 | |
Intrafractional motion | |||||||||||||
Npatients | 79 | 56 | 12 | 11 | |||||||||
(mm) | M [range] | SD | σ | M [range] | SD | σ | M [range] | SD | σ | M [range] | SD | σ | |
Right hemidiaphragm | 9.5 [3.5–16.1] | 2.7 | 1.9 | 10.3 [6.9–16.1] | 2.4 | 2.1 | 7.3 [3.5–10.8] | 2.3 | 1.2 | 8.3 [5.6–12.3] | 2.4 | 1.7 | |