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Table 2 Patient repositioning errors (194 CBCT)

From: Cone-beam computed tomography in hypofractionated stereotactic radiotherapy for brain metastases

  

tranlations (mm)

rotations (°)

 

x

y

z

3D vector

θx

θy

θz

mean

0.5

0.4

0.4

3.1

0

-0.1

-0.6

SD

1.6

2.7

1.9

2.1

1.3

1.1

1.4

median

0.5

0.3

0.3

2.7

0.1

0

0

90th percentile

2.4

3.2

2.2

5.1

1.4

1.2

0.9

range

-5.7; 5.9

-8.2; 12.1

-7; 14

0.3; 14.9

-6; 3.1

-3; 2.4

-5; 3.3