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Table 3 Summary data of systematic setup error and random setup error and PTV margin for 221 patients (bold requirement > 3 mm PTV margin)

From: Neck muscle training improving the setup of reproducibility in patient with head and neck cancer receiving radiotherapy - a prospective randomized controlled study

  

Muscle training group

Control group

X

Y

Z

X

Y

Z

Σ Systematic setup error

Clivus

0.87

1.04

0.77

0.98

1.06

1.03

C4

1.21

1.18

1.05

1.19

1.35

1.37

C7

1.51

1.25

1.30

1.57

1.39

1.59

\(\:\sigma\:\) Random setup error

Clivus

0.33

0.38

0.30

0.39

0.40

0.45

 

C4

0.46

0.45

0.51

0.43

0.42

0.55

 

C7

0.59

0.46

0.55

0.57

0.46

0.57

PTV margin

Clivus

2.41

2.87

2.13

2.72

2.93

2.89

 

C4

3.35

3.26

2.98

3.28

3.67

3.81

 

C7

4.19

3.45

3.63

4.32

3.80

4.37

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Radiation Oncology

ISSN: 1748-717X

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