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. 2016 Jan 8;89(1058):20150332. doi: 10.1259/bjr.20150332

Table 2.

Centre of mass distances between contours for different CT scans

Observer Difference between CTs (cm) CTV Liver L-kidney R-kidney
A 1–2 0.51 0.59 0.60 0.66
1–3 0.28 0.50 0.63 0.50
2–3 0.40 0.43 0.68 0.60
Mean 0.40 0.51 0.64 0.59
B 1–2 0.28 0.54 0.62 0.66
1–3 0.31 0.40 0.57 0.46
2–3 0.26 0.36 0.71 0.62
Mean 0.28 0.43 0.63 0.58
C 1–2 0.49 0.69 0.57 0.66
1–3 0.43 0.75 0.66 0.57
2–3 0.52 0.68 0.67 0.60
Mean 0.48 0.71 0.63 0.61
D 1–2 0.46 0.72 0.63 0.72
1–3 0.42 0.47 0.68 0.63
2–3 0.43 0.58 0.73 0.64
Mean 0.44 0.59 0.68 0.66

CTV, clinical tumour volume; L, left; R, right.