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Table 5 CTV definition variability between the five institutions

From: Variability in spine radiosurgery treatment planning – results of an international multi-institutional study

 

SD in mm

Range in mm

Case

X and Y

Z

X and Y

Z

1

0.6

0.3

1.6

0.8

2

1.3

3.0

3.0

6.9

3

0.5

0.6

1.0

1.4

4

0.9

1.0

1.9

2.3

Average

0.8

1.2

1.8

2.8