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Table 3 Treatment Characteristics

From: CyberKnife® enhanced conventionally fractionated chemoradiation for high grade glioma in close proximity to critical structures

Characteristic

Homogeneity Index

   Min

1.22

   Max

1.67

   Mean

1.38

   Median

1.43

New Conformality Index

   Min

1.20

   Max

1.84

   Mean

1.62

   Median

1.54

Prescription Isodose Line (%)

 

   Min

60

   Max

80

   Mean

73

   Median

70

Treatment Volume (cc)

 

   Min

13

   Max

550

   Mean

174

   Median

95

Percent Tumor Coverage

 

   Min

79

   Max

99

   Mean

94

   Median

96

Number of Radiation Beams Utilized

 

   Min

87

   Max

288

   Mean

173

   Median

151

Number of Verification Images Per Treatment

   Min

29

   Max

96

   Mean

58

   Median

50