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Table 2 Treatment characteristic

From: Five-fraction stereotactic radiosurgery (SRS) for single inoperable high-risk non-small cell lung cancer (NSCLC) brain metastases

Characteristic

 

PTV volume (cc)

 

 Mean

7.55

 Median

5.56

 Range

0.35 – 42.63

Conformality index

 

 Mean

1.63

 Median

1.52

 Range

1.24 – 2.55

Rx isodose line (%)

 

 Mean

82

 Median

83

 Range

75 – 90

PTV coverage (%)

 

 Mean

99.58

 Median

99.88

 Range

97.15 – 100.00

Dose (Gy)

No. of patients (%)

 30

5 (25)

 35

13 (65)

 40

2 (10)

Treatment length (days)

 

 Mean

7.2

 Median

7

 Range

5 – 16