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Table 3 Radiosurgery Treatment Plan

From: CyberKnife® radiosurgery in the treatment of complex skull base tumors: analysis of treatment planning parameters

 

Control Group I (simple) (n = 36)

Control Group II (metastases) (n = 43)

Study Group (complex) (n = 46)

Dose (cGy)

   

   Min

900

1500

1500

   Max

3500

3000

3500

   Mean

2301

1905

2387

   Median

2500

1900

2500

Treatment Stages

   

   Min

3

1

1

   Max

10

5

5

   Mean

5.2

1.5

4.7

   Median

5

1

5

Homogeneity Index

   

   Min

1.11

1.11

1.07

   Max

1.49

1.54

1.67

   Mean

1.26

1.21

1.24

   Median

1.25

1.19

1.25

New Conformity Index

   

   Min

1.04

1.04

1.27

   Max

2.59

3.11

2.27

   Mean

1.66

1.73

1.67

   Median

1.57

1.64

1.57

Percent Target Coverage (%)

   

   Min

82.5

79.6

80.2

   Max

99.9

100.0

99.9

   Mean

95.9

97.0

94.3

   Median

97.5

99.1

94.7