Page 32 - Organ motion in children for high-precision radiotherapy - Sophie Huijskens
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Figure 2.1 | Median interfractional motion in children in the studied organs. Adult data derived from [8]. Significant differences were found in CC and AP directions (see discussion). Abbreviations: LR = Left-Right; CC = Cranial-Caudal; AP = Anterior-Posterior.
Table 2.2 | Group mean, the group systematic (Σ) and group random errors (σ) in mm in the orthogonal directions for the right- and left kidney and in CC direction for the diaphragm based on 527 CBCTs from 39 children.
Right Kidney Left Kidney Diaphragm (mm) LR CC AP LR CC AP CC
Group mean Σ
σ
0.6 0.5 0 1.1 3.8 2.1 1.1 3.1 1.7
-0.6 1.5 1.3 3.0 1.2 2.9
0 1.1 1.5 5.2 2.1 4.0
Abbreviations: LR = Left-Right; CC = Cranial-Caudal; AP = Anterior-Posterior
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