Skip to main content

Table 2 Gamma pass rates and mean Gamma values for the (3%/3 mm), (3%/2 mm) and (2%/2 mm) criteria for each tested plan

From: CyberKnife Xsight versus fiducial-based target-tracking: a novel 3D dosimetric comparison in a dynamic phantom

Treatment modality

Gamma criteria

Gamma passing rate

Mean gamma value

3-Fiducial static

(No target rotation)

(FTTS)

3%/3 mm

99.8%

0.22

 

3%/2 mm

99.3%

0.29

 

2%/2 mm

98.6%

0.33

3-Fiducial synchrony

(No target rotation)

(FTTS)

3%/3 mm

96.7%

0.30

 

3%/2 mm

93.7%

0.39

 

2%/2 mm

92.9%

0.46

1-Fiducial synchrony

(No target rotation)

(FTTS)

3%/3 mm

99.2%

0.23

 

3%/2 mm

97.8%

0.30

 

2%/2 mm

96.9%

0.34

3-Fiducial static

(Target rotation allowed)

(FTTS)

3%/3 mm

98.6%

0.25

 

3%/2 mm

97.1%

0.33

 

2%/2 mm

96.3%

0.38

1-Fiducial synchrony

(Target rotation allowed)

(FTTS)

3%/3 mm

96.3%

0.36

 

3%/2 mm

91.2%

0.48

 

2%/2 mm

87.8%

0.57

XLTS 2-view static

(Target rotation allowed)

3%/3 mm

99.9%

0.22

 

3%/2 mm

99.4%

0.28

 

2%/2 mm

98.4%

0.33

XLTS 2-view synchrony

(Target Rotation Allowed)

3%/3 mm

97.3%

0.35

 

3%/2 mm

92.8%

0.46

 

2%/2 mm

89.2%

0.54

XLTS 1-view synchrony

(Target ROTATION ALLOWED)

3%/3 mm

98.5%

0.29

 

3%/2 mm

96.2%

0.38

 

2%/2 mm

93.44%

0.44

XLTS 0-View

(Target rotation allowed)

3%/3 mm

85.0%

0.55

 

3%/2 mm

76.1%

0.70

 

2%/2 mm

69.7%

0.88