Page 49 - Organ motion in children for high-precision radiotherapy - Sophie Huijskens

Table 3.2 | The group mean, group systematic (Σ) and group random error (σ) for children and adults.
Children Adults
AP CC -0.4 1.0 -0.6 -0.4
Systematic error CC
3.1
Right kidney CC LR
0.7 -0.1 2.0 0.7
Right kidney CC LR
Mean (mm)
Left kidney
Diaphragm LR AP CC
-0.4 -0.9 -0.8
-0.1 -3.3 2.1 Σ (mm)
6.5 Random error σ (mm)
Children 3.6 Adults 6.6
1.3 1.9
Right kidney LR
1.0
AP 1.8 3.2
Left kidney LR
Diaphragm AP CC
1.4 0.9 3.4
2.1 2.2 9.9
CC Children 2.9 Adults 5.0
AP
1.5
2.9
= left-right, AP = anterior-posterior
1.5 Abbreviations: CC = cranial-caudal, LR
2.5 1.5 2.0 3.7 5.0 1.5 2.1 4.9
Left kidney
CC LR AP CC
Diaphragm
Note: The calculations of the group systematic (Σ) and random error (σ) are based on the distributions of the individual means and SDs as presented in Figure 3.1.
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