Inter-fractional motion over the PTV margin (mm)

Fractions (n = 2302) (%)

AP

LR

SI

<1.0

2242 (97.4)

2300 (99.9)

2246 (97.6)

1.0 - 1.9

27 (1.1)

2 (0.1)

24 (1.0)

2.0 - 2.9

18 (0.8)

0

18 (0.8)

3.0 - 3.9

9 (0.4)

0

6 (0.3)

4.0 - 4.9

3 (0.1)

0

3 (0.1)

≥ 5.0

3 (0.1)

0

5 (0.2)