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Table 2 Motion magnitudes of GTV centroid measured by 4D CT in 15 patients (mm)

From: Use of combined maximum and minimum intensity projections to determine internal target volume in 4-dimensional CT scans for hepatic malignancies

Patient Cranio-caudal Left-right Anterior-posterior 3D vector
1 8.8 2.9 2.3 9.6
2 11.9 1.1 1.4 12.0
3 6.9 1.0 2.8 7.5
4 8.8 1.3 3.0 9.4
5 8.7 1.7 2.2 9.1
6 10.0 1.1 3.9 10.8
7 15.2 2.5 8.1 17.4
8 7.6 3.6 4.3 9.5
9 8.0 1.1 1.4 8.2
10 5.3 2.7 8.2 10.1
11 3.4 1.0 3.2 4.8
12 3.0 1.0 2.1 3.8
13 11.5 1.7 2.3 11.9
14 3.9 0.9 0.7 4.1
15 7.4 1.0 1.7 7.7
Mean 8.0 1.6 3.2 9.1
SD 3.3 0.9 2.2 3.4