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Table 1 Overview of translational and rotational errors with descriptive statistics of absolute deviations in head position caused by patient motion

From: Intrafractional 6D head movement increases with time of mask fixation during stereotactic intracranial RT-sessions

N = 453 (NF = 96)

3DV [mm]

Translations [mm]

Rotations [°]

X

Y

Z

Median

0.29

0.11

0.12

0.14

0.15

0.11

0.22

Mean

0.38

0.17

0.19

0.21

0.22

0.19

0.36

95% CI

 Lower

0.35

0.15

0.17

0.19

0.19

0.17

0.32

 Upper

0.41

0.19

0.21

0.23

0.24

0.21

0.40

Variance

0.11

0.05

0.05

0.05

0.06

0.04

0.17

SD

0.34

0.22

0.22

0.23

0.25

0.21

0.42

Maximum

2.82

1.74

1.49

2.18

2.81

1.52

4.13

Percentile

 95%

1.06

0.56

0.62

0.63

0.62

0.58

1.14

 25%

0.16

0.04

0.05

0.06

0.07

0.05

0.09